Cisco 4000 Series Integrated Services Routers Installation Guide

Cisco VG450 Voice Gateway Hardware Installation Guide
First Published: 2018-10-15
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CHAPTER
1
Overview of Cisco VG450 Voice Gateway
Cisco High-Density Analog Voice Gateway provide enterprises, managed services providers, and service
providers the ability to directly connect public-switched telephone networks (PSTNs) and existing telephony
equipment to Cisco 4000 Series Integrated Services Routers. These fixed-port (FXS and FXO) modules
provide Dual-Tone Multifrequency (DTMF) detection, voice compression and decompression, call progress
tone generation, Voice Activity Detection (VAD), echo cancellation, and adaptive jitter buffering. Cisco
VG450 Voice Gateway is a high-density analog voice gateway. It is an intermediate path that enables TDM
to IP transition.
The Cisco VG450 Voice Gateway supports the following interfaces:
• Gigabit Ethernet (GE)
• USB
• Network Interface Module (NIM)
• Single-Wide Service Module (SWSM) interface
• Double-Wide Service Module (DWSM) interface
This chapter contains the following sections:
• Features and Benefits of Cisco VG450 Voice Gateway, on page 1
• Cisco VG450 Voice Gateway Chassis, on page 4
• Slot, Bay, and Ports, on page 4
• Technical Specifications, on page 6
• Platform and Software Requirements, on page 8
Features and Benefits of Cisco VG450 Voice Gateway
Cisco VG450 Voice Gateway provides VoIP connectivity to analog devices, such as analog desk phones,
analog conference room phones, fax machines and modems. Cisco 450 Voice Gateway provides several
improvements from the previous high-density analog and digital extension modules (EVMs), in the following
ways:
• On-board Digital Signal Processor (DSP)—The FXO and FXS service modules contain an onboard
DSP and don’t require the router to have a dedicated packet voice DSP module (PVDM) on the
motherboard. The DSP on the voice module is necessary for the voice features. It also provides for echo
cancellation of up to 128-ms echo-tail length for demanding network conditions.
• Support for Online Insertion and Removal (OIR)—The FXS and FXO service modules support Online
Insertion and Removal (OIR), reducing the downtime required for new or replacement modules. The
Cisco VG450 Voice Gateway Hardware Installation Guide
1
Overview of Cisco VG450 Voice Gateway
Features and Benefits of Cisco VG450 Voice Gateway
service modules can be inserted into the SM-X slot on the supported Cisco 4000 Series ISRs without
powering off the router.
• FXS-E (extended loops) support—FXS ports on the new modules support FXS-E with the following
details:
• Higher loop current (35 mA) to accommodate specialty phones
• Longer loop length for loops with 26 AWG wire, up to 11,000 feet (3400 meters)
• Higher ringing voltage (65 Vrms, no load)
Note
Switching between the modes requires reload of the ISR chassis.
• FXO failover bypass ports—A failover bypass port, also called a failover trunk bypass, provides a way
to use designated analog phone ports to make phone calls through the PSTN during a power outage.
In addition to these features, Cisco 450 Voice Gateway supports the following features:
• Caller line ID
• G.711, G.729a, and G.726
• G722, iLBC, GSMAMR-NB, and Internet Speech Audio Codec (iSAC)
• Fax detection, pass-through, and relay (T.38)
• Modem pass-through
• DTMF detection
• Echo cancellation
• Voice activity detection
• Comfort noise generation
• Real-Time Control Protocol (RTCP)
• Acoustic shock protection
• Real-Time Transport Protocol (RTP)
• RFC 4733 Digit Relay
• Noise reduction is on the roadmap
• The FXS features include:
• Support for either FXS or DID functionality
• Message-Waiting Indicator (MWI)
• Cable detection: GR909 line test
• The FXO features include:
• Support for both ground-start and loop-start modes
• Support for FXO CAMA signaling type
• Call Detail Record (CDR) information
• Support for interworking with Cisco Unified Communications Manager (Skinny Client Control Protocol
[SCCP]), H.323, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP) 0.1
• Cable detection
• Overload protection
Cisco VG450 Voice Gateway Hardware Installation Guide
2
Overview of Cisco VG450 Voice Gateway
Analog Phone Connectivity
Analog Phone Connectivity
Cisco 450 Voice Gateway are ideal for analog phone deployments ranging from centralized to sparsely
concentrated or distributed topologies. Cisco 4000 Series Integrated Services Routers offer many supplementary
analog calling features, depending on the call control and signaling type used. All supplementary analog
features are supported through the FXS and FXO service modules. The analog interface on Cisco 4000 Series
also supports Feature Access Codes (FACs) for invoking supplementary services.
Fax and Modem Connectivity
FXS ports on Cisco 450 Voice Gateway support fax machines and modems. When using fax machines, the
gateways support T.38 fax relay and fax pass-through. T.38 fax relay technologies allow transfer of faxes
across the network with high reliability using less bandwidth than a voice call. All modems can be connected
to the Cisco VG Series Gateways and are transferred over the network using modem pass-through.
Protocols Supported
The voice gateways support the following protocols:
• SCCP
• H.323v4
• MGCP
• SIP
• Real-Time Transport Protocol (RTP)
• Secure Real-Time Transport Protocol (SRTP)
• Trivial File Transfer Protocol (TFTP)
• HTTP server
• Simple Network Management Protocol (SNMP)
• Telnet
• Dynamic Host Configuration Protocol (DHCP)
• DNS
• Cisco Unified Communications Manager or Cisco Unified Communications Manager Express redundancy
support using Hot Standby Router Protocol (HSRP)
• Call survivability: MGCP failover to an H.323 connection to the Survivable Remote Site Telephony
(SRST) router
• T.38 fax relay and modem pass-through
• Codec support: G.711, G.729. G.729a will be used if the gateway does not support G729 annex b
• RADIUS and TACACS+ for Telnet and authorization
The following table lists the feature specifications for Cisco 450 Voice Gateway.
Table 1: Cisco SM-X Single-Wide Service Module Feature Specifications
Feature
SM-X-8FXS/12FXO
SM-X-16FXS/2FXO
SM-X-24FXS/4FXO
SM-X-72FXS
Tip and Ring
Interface for each
FXS port
Cisco VG450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Cisco VG450 Voice Gateway Chassis
Feature
SM-X-8FXS/12FXO
SM-X-16FXS/2FXO
SM-X-24FXS/4FXO
Interface
FXS/FXO (RJ-21)RJ-21
ports 0 to 7: FXSRJ-21
ports 8 to 19: FXO
FXS/FXO (RJ-21)RJ-21
ports 0 to 15: FXSRJ-21
ports 16 and 17: FXO
FXS (RJ-21), FXO
FXS (RJ-21)
(RJ-11)RJ-21 ports 0 to 23:
FXSRJ-11 ports 24 to 27:
FXO
Address signaling
format
In-band DTMF
In-band DTMF Out-of-band In-band DTMF Out-of-band In-band DTMF
Out-of-band pulse (8 to 12 pulse (8 to 12 pps)
pulse (8 to 12 pps)
Out-of-band pulse (8
pps)
to 12 pps)
FXS signaling
formats
FXS loop-start,
ground-start, and DID
signaling
FXS loop-start,
ground-start, and DID
signaling
SM-X-72FXS
FXS loop-start, ground-start, FXS loop-start,
and DID signaling
ground-start, and DID
signaling
Cisco VG450 Voice Gateway Chassis
The following figures show the front and back panels of the Cisco VG450 Voice Gateway Chassis:
Figure 1: Front Panel of the VG450 Voice Gateway
Figure 2: Back Panel of the VG450 Voice Gateway
Slot, Bay, and Ports
The FXO port is used to connect to PBX or key systems, or to provide off-premises connections to the PSTN.
It supports battery reversal detection and caller ID. The FXO port is also used to connect to analog Centralized
Automatic Message Accounting (CAMA) trunks to provide dedicated E-911 service (only in North America).
Cisco VG450 Voice Gateway Hardware Installation Guide
4
Overview of Cisco VG450 Voice Gateway
Slot, Bay, and Ports
The FXS port is used to connect analog phones, modems, fax machines, and speaker phones to an enterprise
IP voice system, and to use them as extensions to your Cisco or third-party IP call-control system. Having
these devices tightly integrated with the IP-based phone system is advantageous for increased manageability,
scalability, and cost-effectiveness. The Direct Inward Dialing (DID) port is used to provide off-premises DID
connection from the central office. It serves only incoming calls from the PSTN. The Caller ID feature is not
supported in DID mode.
Cisco 450 Voice Gateway supports the following:
• Slot 0/1, 0/2, 0/3:
• NIM-1MFT-T1/E1
• NIM-2MFT-T1/E1
• NIM-4MFT-T1/E1
• NIM-8MFT-T1/E1
• NIM-2FXO
• NIM-4FXO
• NIM-4EM
• NIM-2BRI-NT/TE
• NIM-4BRI-NT/TE
• NIM-2FXSP
• NIM-4FXSP
• NIM-2FXS/4FXOP
• SM Slots 1 and 2:
• SM-X-8FXS/12FXO
• SM-X-16FXS/2FXO
• SM-X-24FXS/4FXO
• SM-X-72FXS
• SM slot 3:
• SM-X-72FXS
• No Skye SM is supported.
• No DSP Farm is supported
• No CUBE and CME are supported
• Old D3 analog FXS and combo FXS/FXO NIMs are not supported.
• T1/E1: channel-group CLI is not supported
• CME: telephone service CLI is not supported.
The following table provides information about Cisco 450 Voice Gateway SKU:
Table 2: Cisco 450 Voice Gateway
Interface
Maximum Number of FXS-E
Ports
SM-X-8-FXS/12FXO 8
Maximum Number or LED
RENs
16
Number of Failed-over Ports
EN LED (Amber/Green) 8 ports on RJ-21
ACT LED (Green)
Cisco VG450 Voice Gateway Hardware Installation Guide
5
Overview of Cisco VG450 Voice Gateway
Technical Specifications
Interface
Maximum Number of FXS-E
Ports
SM-X-16-FXS/2FXO 16
Maximum Number or LED
RENs
16
Number of Failed-over Ports
EN LED (Amber/Green) 2 ports on RJ-21
ACT LED (Green)
SM-X-24-FXS/4FXO 16
16
EN LED (Amber/Green) 4 ports on RJ-11
ACT LED (Green)
SM-X-72FXS
• 16 for 72FXS mode
• 56 for 56FXS-E mode
• 40
• 30
EN LED (Amber/Green) —
ACT LED (Green)
The slot, bay, and port information for Cisco 450 Voice Gateway FXS module is as follows:
Interface
Slot
Bay Port
SM-X-8-FXS/12FXO 1-2
0
0-7
SM-X-16-FXS/2FXO 1-2
0
0-15
SM-X-24-FXS/4FXO 1-2
0
0-23
SM-X-72FXS
0
1 and
3
17•-0
55•-0
The slot, bay, and port information for Cisco 450 Voice Gateway FXO module is as follows:
Interface
Slot Bay Port
SM-X-8-FXS/12FXO 1-2 0
8-19
SM-X-16-FXS/2FXO 1-2 0
16-17
SM-X-24-FXS/4FXO 1-2 0
24-27
Technical Specifications
Table 3: Cisco VG450 Voice Gateway Technical Specifications
Description
SM-X-8FXS/12FXO
SM-X-16FXS/2FXO
SM-X-24FXS/4FXO
SM-X-72FXS
Dimensions (H
x W x D)
1.58 x 7.44 x 7.6 inches
1.58 x 7.44 x 7.6 inches
1.58 x 7.44 x 7.6 inches
1.58 x 15.57 x 7.57 inches
Weight
1.90 lb (0.86 kg)
1.98 lb (0.90 kg)
2.12 lb (0.96 kg)
4.94 lb (2.24 kg)
Physical
Power
Cisco VG450 Voice Gateway Hardware Installation Guide
6
Overview of Cisco VG450 Voice Gateway
Technical Specifications
Description
SM-X-8FXS/12FXO
SM-X-16FXS/2FXO
SM-X-24FXS/4FXO
SM-X-72FXS
AC power
53.55W
70.32W
79.37W
128.16W
Current
4.46A on 12V
5.86A on 12V
6.61A on 12V
10.68A on 12V
Voltage
12V from backplane
12V from backplane
12V from backplane
12V from backplane
On-hook voltage -44V
-44V
-44V
-44V
Off-hook loop
current
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
Operating
temperature
32 o to 104 o F (0 o to 40 o 32 o to 104 o F (0 o to 40 o 32 o to 104 o F (0 o to 40 o 32 o to 104 o F (0 o to 40 o
C)
C)
C)
C)
Nonoperating
temperature
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
FXS loop
resistance
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
DID loop
resistance
Up to 1400 ohms
Up to 1400 ohms
Up to 1400 ohms
Up to 1400 ohms
Ring frequency 20, 25, 30, and 50 Hz
20, 25, 30, and 50 Hz
20, 25, 30, and 50 Hz
20, 25, 30, and 50 Hz
REN loading
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
Impedance
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
FXS loop length Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Cables
Category 3 and Category 5 Category 3 and Category 5 Category 3 and Category 5 Category 3 and Category 5
Cisco VG450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Platform and Software Requirements
Platform and Software Requirements
Cisco 450 Voice Gateway is supported on Cisco 4461 Integrated Services Router effective with Cisco IOS
XE Fuji 16.9.1 or later. The service modules provide gateway services for Cisco Unified Communications
using Cisco Unified Communications Manager with SRST or Cisco Unified Communications Manager
Express. The following table provides information about the software version that is compatible with FXO
and FXS service modules.
Table 4: Compatible Software Versions with the FXO and FXS Service Modules
Product Category
Software Version
Cisco IOS XE Software
Cisco IOS XE Fuji 16.9.1
Cisco Unified Communications Manager
10.5.2(SU8), 11.5.1(SU6) and 12.5
Cisco Unified Communications Manager Express Any version that is compatible with Cisco IOS XE Fuji 16.7.1
Third-party Call Control
IP-based trunk; SIP and H.323
Configuration Methods
After the Cisco VG450 Voice Gateway is operational, use the procedures described in the Cisco Voice 450
Gateway Software Configuration Guide to configure specific services and functions, or to make changes to
an existing configuration.
You can configure the Cisco VG450 Voice Gateway by one of the following methods:
• System configuration dialog
• Configuration mode: Cisco IOS software CLI
• Setup command facility: Remote configuration through a LAN
• SNMP-based application: CiscoView or HP OpenView
• HTTP-based configuration server: Provides access to the CLI from a web browser
Cisco VG450 Voice Gateway Hardware Installation Guide
8
CHAPTER
2
Planning Your Installation
This chapter provides preinstallation information, such as recommendations and requirements that must be
met before installing your Cisco VG450 Voice Gateway. See the following sections to prepare for installation:
• Location and Mounting Requirements, on page 9
• Network Cabling Considerations, on page 11
• Distance Limitations for Interface Cables, on page 12
• Interference Considerations , on page 12
• Required tools and equipment for installation, on page 13
• Site Log, on page 13
• Installation Checklist, on page 14
Location and Mounting Requirements
The mounting possibilities for your Cisco VG450 Voice Gateway are:
• Rack-mount
• Bench-top
The mounting location must provide the following:
Temperature Control and Ventilation
The installation location (room, closet, or cabinet) for the Cisco VG450 Voice Gateway should always be
well ventilated and provide adequate air circulation to ensure proper cooling. The room temperature should
be maintained between 32 to 122°F (0 to 50°C).
Note
The Cisco VG450 Voice Gateway chassis is designed for back and sides-to-front airflow.
Enclosed Racks
Caution
Enclosed racks must have adequate ventilation. An enclosed rack should never be overcrowded and should
have louvers and a fan.
Cisco VG450 Voice Gateway Hardware Installation Guide
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Planning Your Installation
Bench-Mounted
If the Cisco VG450 Voice Gateway is installed in an enclosed rack with a ventilation fan at the top, make
sure that heated air drawn upward from other equipment does not prevent adequate cooling.
If the chassis is installed using slide rails, check for blocked ventilation ports when it is in position in the rack
or cabinet. Make sure that the ventilation ports of the Cisco VG450 Voice Gateway are not blocked.
Tip
Baffles can help isolate exhaust air from intake air. Baffles also help draw cooling air through the cabinet.
The best location for the baffles depends on the airflow patterns in the rack. You can test the airflow by
experimenting with different equipment arrangements.
Bench-Mounted
If the unit is placed on a bench-top, do not stack other equipment or paper on the chassis. Provide plenty of
space for air circulation (front to back). Inadequate ventilation can result in overheating and damage.
Rack requirements
The following information can help you plan your equipment rack configuration:
• Allow clearance around the rack for maintenance.
• Enclosed racks must have adequate ventilation. Ensure that the rack is not congested, because the hardware
generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air. Heat
generated by equipment at the bottom of the rack can be drawn upward into the intake ports of the
equipment above it.
• When mounting a chassis in an open rack, ensure that the rack frame does not block the intake or exhaust
ports. If the chassis is installed on slides, check the position of the chassis when it is seated in the rack.
If the Cisco VG400 Voice Gateway is installed in an enclosed rack with a ventilation fan at the top, make
sure that heated air drawn upward from other equipment does not prevent adequate cooling.
Note
Enclosed racks must have adequate ventilation. An enclosed rack should never be overcrowded and should
have louvers and a fan
If the chassis is installed using slide rails, check for blocked ventilation ports when it is in position in the rack
or cabinet. Make sure that the ventilation ports of the Cisco VG450 Voice Gateway are not blocked.
Baffles can help isolate exhaust air from intake air. Baffles also help draw cooling air through the cabinet.
The best location for the baffles depends on the airflow patterns in the rack. You can test the airflow by
experimenting with different equipment arrangements.
Access to Chassis
Allow space at the rear of the chassis for cable connections. Also consider the need to access the chassis for
future upgrades, maintenance, and troubleshooting.
Cisco VG450 Voice Gateway Hardware Installation Guide
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Planning Your Installation
Power Source
Chassis grounding is provided through the power cable, which uses a standard grounding plug. However, the
chassis also requires a reliable earth ground using the earth ground lug and hardware provided. For more
information, see the Chassis Grounding section.
Power Source
A Cisco VG450 Voice Gateway with AC power supply autoselects either 100–127 volt or 200–240 volt
operation. AC versions include a 6-foot (1.8-meter) electrical power cord. (A label near the power cord
indicates the correct voltage, frequency, current draw, and power dissipation.)
Power Suppy Considerations
Cisco VG450 Voice Gateway requires significantly more power because of its high-density ports and OPX
‘Lite’ requirements.
This require a larger 48V battery backup that may need to be custom built.
To handle power failure conditions, an uninterrupted power supply (UPS) is needed. UPS is widely available
in all markets, including emerging markets (due to prevalence of UPS for personal computers). Thus, a separate
UPS for Cisco VG450 Voice Gateway is a viable option when the ISR/UPS is not co-located with it.
If you suspect that your AC power is not clean—if lights flicker often or there is machinery with large motors
nearby—have a qualified person test the power. Install a power conditioner if necessary.
Warning
Avoid using or servicing any equipment that has outdoor connections during an electrical storm. There may
be a risk of electric shock from lightning. Statement 1088
Warning
Read the installation instructions before you connect the system to its power source. Statement 1004
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than:120 VAC, 15A U.S. (240 VAC, 10A international) Statement 1005
Warning
The device is designed for connection to TN and IT power systems. Statement 1007
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be accessed only
through the use of a special tool, lock and key, or other means by security. Statement 1017
Network Cabling Considerations
The cable types that are used are dependent on the Cisco VG450 Voice Gateway that you are using. For more
information, see the “Cable Specifications and Information” section on page A-1 .
Cisco VG450 Voice Gateway Hardware Installation Guide
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Planning Your Installation
Distance Limitations for Interface Cables
The following are the cable types that are used in the Cisco VG450 Voice Gateway:
• GE cables (RJ-45 to RJ-45 straight-through cables)
• Analog voice cables (RJ-21)
Distance Limitations for Interface Cables
When planning your installation, consider distance limitations and potential electromagnetic interference
(EMI) as defined by the Electronic Industries Association (EIA). Distance limitation information is included
for the following VG ports:
• Gigabit Ethernet Maximum Distance: The maximum segment distance for Gigabit Ethernet is 330 feet
(100 meters) (specified in IEEE 802.3).
• FXS Analog Voice Port Maximum Distance: The maximum distance is established by a total allowable
loop resistance, including the phone or terminal equipment, of 600 ohms.
• FXS-E (Extended loop) Analog Voice Port Maximum Distance: The maximum distance is established
by a total allowable loop resistance, including the phone or terminal equipment, of 1400 ohms.
Note
Typically, a 26 AWG wire is equal to 81.6 ohm/Kft and 24 AWG wire is equal to 51.3 ohm/Kft.
Interference Considerations
When you run cables for any significant distance in an electromagnetic field, interference can occur between
the electromagnetic field and the signals on the cables. This has two implications for the installation of terminal
plant cabling:
• Unshielded plant cabling can emit radio interference.
• Strong electromagnetic interference (EMI), especially as caused by lightning or radio transmitters, can
destroy the EIA/TIA-232 drivers and receivers in the Cisco VG450 Voice Gateway.
If you use twisted-pair cables with a good distribution of grounding conductors in your plant cabling, emitted
radio interference is unlikely.
If you have cables exceeding recommended distances, or if you have cables that pass between buildings, give
special consideration to the effect of lightning strikes or ground loops. If your site has these characteristics,
consult experts in lightning suppression and shielding. The electromagnetic pulse caused by lightning or other
high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic
devices.
Most data centers cannot resolve such infrequent, but potentially catastrophic problems without pulse meters
and other special equipment. Take precautions to avoid these problems by providing a properly grounded and
shielded environment and by installing electrical surge suppression.
If you remove any module, you must either install a module in its place or install a cover plate over the opening.
All module openings must be either occupied or covered to prevent electromagnetic interference.
For advice on the prevention of electromagnetic interference, consult experts in radio-frequency interference
(RFI).
Cisco VG450 Voice Gateway Hardware Installation Guide
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Planning Your Installation
Required tools and equipment for installation
Required tools and equipment for installation
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
You need the following tools and equipment to install and upgrade the Voice Gateway and its components:
• Standard flat-blade screwdriver as required for attaching the brackets, as per your mounting.
• Phillips screwdriver for attaching the brackets to the Voice Gateway.
• Mounting brackets and screws for the 24-inch rack, if required.
• Four telco machine screws, for installing the chassis in a rack (use the screw size required by the rack).
• Screws and anchors for wall-mounting (if applicable):
• Eight wood screws or other fasteners, for installing the chassis on a wall.
• An additional starter screw can be used to facilitate wall-mounting.
• An ESD-preventive wrist strap
• In addition, you might also need the following external equipment:
• A Console terminal or PC with terminal emulation software
• A PC running terminal emulation software for administrative access
• Modem for remote access.
• Analog voice RJ-11 cables
• Ethernet switch
• A modem for remote configuration.
Site Log
We recommend that you maintain a Site Log to record all actions relevant to the system. Site Log entries
might include the following:
• Installation—Print a copy of the Installation Checklist and insert it into the Site Log.
• Upgrades and maintenance—Use the Site Log to record ongoing maintenance and expansion history.
Update the Site Log to reflect the following:
• Configuration changes
• Maintenance schedules, requirements, and procedures performed
• Comments, notes, and problems
• Changes and updates to Cisco IOS software
Cisco VG450 Voice Gateway Hardware Installation Guide
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Planning Your Installation
Installation Checklist
Installation Checklist
The folllowing Installation Checklist lists the tasks for installing a Cisco VG450 Voice Gateway. Print a copy
of this checklist and mark the entries as you complete each task. For each Cisco VG450 Voice Gateway,
include a copy of the checklist in your Site Log. (Installation Checklist image)
Installation Checklist for site ______________________________________________
Cisco VG name/serial number _____________________________________________
Task
Background information placed in Site Log
Environmental specifications verified
Site power voltages verified
Installation site prepower check completed
Required tools available
Additional equipment available
Cisco VG received
Quick start guide received
Regulatory compliance and safety information received
Information packet, warranty card, and Cisco.com card received
Software version verified
Rack, or desktop mounting of chassis completed
Initial electrical connections established
ASCII terminal attached to console port
Modem attached to console port (for remote configuration)
Signal distance limits verified
Startup sequence steps completed
Initial operation verified
Cisco VG450 Voice Gateway Hardware Installation Guide
14
Verified
by
Date
CHAPTER
3
Installing the Cisco VG450 Voice Gateway
Tip
While you do this installation, record your progress and site information. See the suggested format in the
Installation Checklist.
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Warning
Read the installation instructions before connecting the system to the power source. Statement 1004
This chapter contains the procedures for installing your Cisco VG450 Voice Gateway and consists of the
following sections:
• Safety Recommendations, on page 15
• Unpacking and Inspection, on page 18
• Install the Cisco VG450 Voice Gateway, on page 19
• Chassis Grounding, on page 22
• Power-On Procedure, on page 23
Safety Recommendations
The following information is included to alert you to safety recommendations and best practices when working
with this equipment.
Maintaining Safety with Electricity
Follow these guidelines when working on equipment powered by electricity.
Warning
High leakage current—earth connection essential before connecting to system power supply. Statement 342
Cisco VG450 Voice Gateway Hardware Installation Guide
15
Installing the Cisco VG450 Voice Gateway
Maintaining Safety with Electricity
Warning
When installing the product, please use the provided or designated connection cables/power cables/AC
adaptors/batteries. Using any other cables/adaptors could cause a malfunction or a fire. Electrical Appliance
and Material Safety Law prohibits the use of UL-certified cables (that have the "UL" or "CSA" shown on the
cord), not regulated with the subject law by showing "PSE" on the cord, for any other electrical devices than
products designated by CISCO. Statement 371
Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than 15A minimum, 60VDC, 35A minimum, 60VDC, 45A minimum,
60VDC, or 50A minimum, 60VDC for the Circuit Breaker. Statement 1005
Warning
This equipment has been designed for connection to TN and IT power systems. Statement 1007
Warning
Class 1 laser product. Statement 1008
Warning
Avoid using or servicing any equipment that has outdoor connections during an electrical storm. There may
be a risk of electric shock from lightning. Statement 1088
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
Warning
This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all
cards, faceplates, front covers, and rear covers are in place. Statement 1029
Warning
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles
on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the
weight of the unit. Statement 1032
Cisco VG450 Voice Gateway Hardware Installation Guide
16
Installing the Cisco VG450 Voice Gateway
General Safety Practices
Warning
Do not use this product near water; for example, near a bathtub, wash bowl, kitchen sink or laundry tub, in a
wet basement, or near a swimming pool. Statement 1035
Warning
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036
Warning
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface. Statement 1037
Warning
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk
of electric shock from lightning. Statement 1038
Warning
To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039
Warning
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041
Warning
This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do not touch
the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11 port, or the
associated circuit-board when the ringer is active. The ringer is activated by an incoming call. Statement 1042
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
Pluggable optical modules comply with IEC 60825-1 Ed. 3 and 21 CFR 1040.10 and 1040.11 with or without
exception for conformance with IEC 60825-1 Ed. 3 as described in Laser Notice No. 56, dated May 8, 2019.
General Safety Practices
Follow these guidelines to ensure personal safety and to protect the equipment:
• Keep the chassis area clear and dust-free during and after installation.
• Put the removed chassis cover in a safe place.
Cisco VG450 Voice Gateway Hardware Installation Guide
17
Installing the Cisco VG450 Voice Gateway
Safety Tips
• Keep tools away from walk areas where you and others could fall over them.
• Do not wear loose clothing that could get caught in the chassis.
• Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.
Safety Tips
Use these tips as safety guidelines when installing or working around this equipment:
• Locate the emergency Power-off switch for the room in which you are working. Then, if an electrical
accident occurs, you can act quickly to turn off the power.
• Disconnect all power before installing or removing a chassis.
• Do not work alone if potentially hazardous conditions exist.
• Never assume that power is disconnected from a circuit. Always check.
• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension
cables, and missing safety grounds.
• If an electrical accident occurs, proceed as follows:
• Use caution; do not become a victim yourself.
• Turn off power to the system.
• If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
and then call for help.
• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD occurs when
electronic components are improperly handled; it can result in complete or intermittent failures.
Always follow ESD-prevention procedures when removing and replacing components.
• Ensure that the chassis is electrically connected to earth ground.
• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact.
• Connect the clip to the ESD-strap connection jack (to the left of the power switch on the rear of the
chassis) or to an unpainted chassis frame surface.
Caution
For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10
megohm (Mohm).
Unpacking and Inspection
Do not unpack the Cisco VG450 until you are ready to install it. If the installation site is not ready, keep the
chassis in its shipping container to prevent accidental damage.
The Cisco VG450, cables, printed publications, and any optional equipment you ordered might be shipped in
more than one container. When you unpack each shipping container, check the packing list to ensure that you
received all the following items:
Cisco VG450 Voice Gateway Hardware Installation Guide
18
Installing the Cisco VG450 Voice Gateway
Install the Cisco VG450 Voice Gateway
• Cisco VG450 Voice Gateway
• Power cord, 6-foot (1.8-meter)
• RJ-45-to-DB-25 adapter cable (labeled Console)
• RJ-45-to-DB-9 adapter cable (labeled Auxiliary)
• Rack-mounting brackets for 19-inch rack (one pair) with screws for attaching to chassis
• Grounding lug and fasteners
Inspect all items for shipping damage. If anything appears damaged, or if you encounter problems when
installing or configuring your system, contact a customer service representative.
Install the Cisco VG450 Voice Gateway
Caution
To prevent damage to the chassis, never attempt to lift or tilt the chassis by holding it by the plastic panel on
the front. Always hold the chassis by the sides of the metal body.
You can install the Cisco VG450 Voice Gateway in one of the following ways:
Setting the Chassis on a Desktop
You can place the router on a desktop, bench top, or shelf.
Note
Do not set the chassis in an area where the high acoustic noise can be an issue.
Caution
Do not place anything on top of the router that weighs more than 10 pounds (4.5 kg), and do not stack the
gateway hardware on a desktop. Excessive distributed weight of more than 10 pounds, or pound point load
of 10 pounds on top could damage the chassis.
Warning
To prevent airflow restriction, allow clearance around the ventilation openings to be at least 1 inch (2.54cms).
Statement 1076.
After you install the voice gateway, you must connect the chassis to a reliable earth ground. For the chassis
ground connection procedures, see the Chassis Grounding section.
Cisco VG450 Voice Gateway Hardware Installation Guide
19
Installing the Cisco VG450 Voice Gateway
Mount Cisco VG450 Voice Gateway Chassis in Rack
Mount Cisco VG450 Voice Gateway Chassis in Rack
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to
ensure that the system remains stable. The following guidelines are provided to ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
unit in the rack. Statement 1006.
You can install the Cisco VG450 Voice Gateway in 19-inch (48.26-cm) EIA and 23-inch (58.42-cm)
Southwestern Bell Corporation (SBC) racks. You can also mount the voice gateway in a 600-mm ETSI rack.
Use the standard brackets shipped with the hardware for mounting the chassis in a 19-inch EIA rack; you can
order optional larger brackets for mounting the chassis in a 23-inch SBC rack.
You can mount the voice gateway in the following ways:
• Center-front mounting: Brackets attached in the center front of the chassis with only the front panel
facing forward.
• Center-back mounting: Brackets attached in the center back of the chassis with only the back panel facing
forward.
• Front mounting: Brackets attached at the front of the chassis with the front panel facing forward.
• Back mounting: Brackets attached at the back of the chassis with the back panel facing forward.
1. Attach the mounting brackets to the chassis as shown in the following images, using the screws provided.
Caution
Do not over-torque the screws. The recommended torque is 15 to 18 inch-lb (1.7 to 2.0 N-m).
2. Attach the second bracket to the opposite side of the chassis. Use a number-2 Phillips screwdriver to
install the number-8 bracket screws.
Caution
Your chassis installation must allow unrestricted airflow for chassis cooling.
Cisco VG450 Voice Gateway Hardware Installation Guide
20
Installing the Cisco VG450 Voice Gateway
Mount Cisco VG450 Voice Gateway Chassis in Rack
Figure 3: Bracket Installation for Front Mounting
Figure 4: Bracket Installation for Back Mounting
1
Screws
4
23-inch SBC brackets
3
19-inch EIA brackets
4
19-inch EIA brackets
3. Use the screws provided with the rack to install the chassis in the rack. For both the 19-inch EIA brackets
and the 23-inch SBC brackets, start the lower pair of screws first, and rest the brackets on the lower screws
while you insert the upper pair of screws.
Cisco VG450 Voice Gateway Hardware Installation Guide
21
Installing the Cisco VG450 Voice Gateway
Chassis Grounding
Tip
The screw slots in the brackets are spaced to line up with every second pair of screw holes in the rack. When
the correct screw holes are used, the small, threaded holes in the brackets line up with unused screw holes in
the rack. If the small holes do not line up with the rack holes, you must raise or lower the brackets to the next
rack hole.
The following image shows a typical installation with back mounting
Figure 5: Bracket Installation for Back Mounting
1
Mounting Screws (4)
After you install the voice gateway, you must connect the chassis to a reliable earth ground. For the chassis
ground connection procedures, see the Chassis Grounding section.
Chassis Grounding
Warning
To reduce the risk of electric shock, the chassis of this equipment needs to be connected to permanent earth
ground during normal use. Statement 445
Use a size 10 AWG (4 mm2) or larger copper wire and an appropriate user-supplied ring terminal with an
inner diameter of 1/4 in. (5–7 mm).
Cisco VG450 Voice Gateway Hardware Installation Guide
22
Installing the Cisco VG450 Voice Gateway
Power-On Procedure
To install the ground connection for your router, perform the following steps:
SUMMARY STEPS
1. Strip one end of the ground wire to the length required for the ring terminal.
2. Crimp the ground wire to the ring terminal, using a crimp tool of the appropriate size.
3. Attach the ground lug or ring terminal to the chassis as shown in the following image. Use one of the
screws provided. Tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).
4. Connect the other end of the ground wire to a known reliable earth ground point at your site.
DETAILED STEPS
Step 1
Strip one end of the ground wire to the length required for the ring terminal.
Step 2
Crimp the ground wire to the ring terminal, using a crimp tool of the appropriate size.
Step 3
Attach the ground lug or ring terminal to the chassis as shown in the following image. Use one of the screws provided.
Tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).
Figure 6: Chassis Ground Connection on the Router
Step 4
Connect the other end of the ground wire to a known reliable earth ground point at your site.
Power-On Procedure
Perform this procedure to power on your Cisco VG450 Voice Gateway, and verify that it goes through its
initialization and self-test. When this is finished, the Cisco VG450 Voice Gateway is ready to configure.
Warning
This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028
Cisco VG450 Voice Gateway Hardware Installation Guide
23
Installing the Cisco VG450 Voice Gateway
Power-On Procedure
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
To power on the Cisco VG450 Voice Gateway, perform the following:
Step 1
Power on your terminal or PC, and configure it for 9600 bps, 8 data bits, 1 stop bit, and no parity.
Step 2
Move the Cisco VG450 Voice Gateway power switch to the ON position.
The green LED next to the auxiliary port come on and the fan starts to operate. If this does not happen, see the
Troublehooting section in this guide.
The following message is displayed at the end of the boot-up messages:
Example:
--- System Configuration Dialog --Would you like to enter the initial configuration dialog? [yes/no]:
Step 3
Enter no to proceed with manual configuration using the CLI:
Example:
Would you like to enter the initial configuration dialog? [yes/no]: no
Would you like to terminate autoinstall? [yes]
Step 4
Press Return to terminate autoinstall and continue with manual configuration.
Several messages are displayed, ending with a line similar to the following:
Example:
...
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled <date
> <time
> by <person
>
Step 5
Press Return to bring up the Router> prompt:
Example:
...
flashfs[4]: Initialization complete.
Router>
Step 6
Enter privileged EXEC mode:
Example:
Router> enable
Router#
Step 7
Continue with the Troubleshooting section.
Cisco VG450 Voice Gateway Hardware Installation Guide
24
Installing the Cisco VG450 Voice Gateway
Power-On Procedure
Note
If the rommon 1> prompt appears, your system has booted in ROM monitor mode. For information on the
ROM monitor, refer to the router rebooting and ROM monitor information in the Cisco IOS Configuration
Fundamentals Configuration Guide for your Cisco IOS software release.
Cisco VG450 Voice Gateway Hardware Installation Guide
25
Installing the Cisco VG450 Voice Gateway
Power-On Procedure
Cisco VG450 Voice Gateway Hardware Installation Guide
26
CHAPTER
4
Troubleshooting the VG450 Voice Gateway
Installation Issues
This section describes possible mechanical problems and corrective actions.
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Warning
No user-serviceable parts inside. Do not open. Statement 1073
If there appears to be a malfunction, first check all cables and connections. If these are in order, see the
following table for specific troubles and solutions.
If you face issues with the Voice Gateway configuration, refer to the Cisco VG450 Voice Gateway Software
Configuration Guide.
Table 5: Troubleshooting the Cisco VG450 Voice Gateway
Symptom
Possible Cause
Corrective Action
Power LED and fan are off
Power source switched off
Switch power source on
Faulty power cable
Check/replace power cable
Faulty power source
Check/correct input power
Faulty internal power supply
Contact Cisco1 or your Cisco reseller
Power LED on; fan off
Faulty Cisco VG450
Contact Cisco 1 Technical Service Center or your Cisco reseller
Power LED off; fan on
Faulty Cisco VG450
Contact Cisco 1 or your Cisco reseller
No initialization response from
Cisco VG450
Faulty modem console terminal Check/replace modem/terminal
Faulty cabling to terminal
Check/replace cable
Faulty Cisco VG450
Contact Cisco 1 or your Cisco reseller
Cisco VG450 Voice Gateway Hardware Installation Guide
27
Troubleshooting the VG450 Voice Gateway Installation Issues
Symptom
Possible Cause
Corrective Action
Unit shuts off after operating for Overheating
some time
Faulty Cisco VG450
Check ventilation
Console screen display freezes
Console fault
Reset/replace console
Software error
Repeat power-on procedure
Faulty Cisco VG450
Contact Cisco 1 or your Cisco reseller
1
See the “Obtaining Technical Assistance” section.
Cisco VG450 Voice Gateway Hardware Installation Guide
28
Contact Cisco 1 or your Cisco reseller
CHAPTER
5
Configuration Methods
After the Cisco VG450 Voice Gateway is operational, use the procedures described in the Cisco Voice 450
Gateway Software Configuration Guide to configure specific services and functions, or to make changes to
an existing configuration.
You can configure the Cisco VG450 Voice Gateway by one of the following methods:
• System configuration dialog
• Configuration mode: Cisco IOS software CLI
• Setup command facility: Remote configuration through a LAN
• SNMP-based application: CiscoView or HP OpenView
• HTTP-based configuration server: Provides access to the CLI from a web browser
Cisco VG450 Voice Gateway Hardware Installation Guide
29
Configuration Methods
Cisco VG450 Voice Gateway Hardware Installation Guide
30
APPENDIX
A
Cable Specifications and Information
This appendix provides the connector and pinout information you need for making or purchasing cables used
with Cisco VG450 Voice Gateway. To order cables from Cisco, see the Obtaining Technical Assistance
section. This appendix contains the following sections:
• Console and Auxiliary Port Cables and Pinouts, on page 31
• Gigabit Ethernet Port Pinouts (RJ-45), on page 34
• Analog Voice Multiport Pinouts (RJ-21X/CA21A), on page 35
Console and Auxiliary Port Cables and Pinouts
Your Cisco VG450 Voice Gateway comes with the cable and adapters you need to connect a PC, an ASCII
terminal, or a modem to your Cisco VG450 Voice Gateway. The cable kit includes:
• RJ-45-to-RJ-45 rollover cable
• RJ-45-to-DB-9 adapter cable for console connection
• RJ-45-to-DB-25 adapter cable for modem connection
The following illustrations and tables provide cable pinout information:
• Console port to a PC—See Table A - 1 and Table A - 4.
• Console port to an ASCII terminal—See Table A - 2 and Table A - 4.
• Auxiliary port to a modem—See Table A - 3 and Table A - 4.
The console port is configured as data communications equipment (DCE); the auxiliary port is configured as
data terminal equipment (DTE). Both are asynchronous serial ports and use RJ-45 connectors.
Console Port to PC
Figure A-1 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-9 female DTE adapter
(labeled TERMINAL); Table A-1 lists the pinouts.
Cisco VG450 Voice Gateway Hardware Installation Guide
31
Cable Specifications and Information
Console Port to ASCII Terminal
Figure 7: Figure A-1 Console Port to PC - Cable and Adapter
Table 6: Console Port to PC—Cable Pinouts (RJ-45 to DB-9)
Console
Port
RJ-45-to-RJ-45 RJ-45-to-DB-9
PC Port
(DCE, RJ-45)
Rollover Cable Adapter “TERMINAL” (DTE,
DB-9)
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin DB-9
Pin
Signal
RTS
12
8
8
8
CTS
DTR
2
7
7
6
DSR
TxD
3
6
6
2
RxD
GND
4
5
5
5
GND
GND
5
4
4
5
GND
RxD
6
3
3
3
TxD
DSR
7
2
2
4
DTR
CTS
81
1
1
7
RTS
2
Pin 1 is connected to pin 8 inside the Cisco VG450 Voice Gateway.
Console Port to ASCII Terminal
Figure A-2 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 female DTE adapter
(labeled TERMINAL); Table A-2 lists the pinouts.
Figure 8: Console Port to ASCII Terminal—Cable and Adapter
Cisco VG450 Voice Gateway Hardware Installation Guide
32
Cable Specifications and Information
Auxiliary Port to Modem
Table 7: Console Port to ASCII Terminal—Cable Pinouts (RJ-45 to DB-25)
Console
Port
RJ-45-to-RJ-45 RJ-45-to-DB-25
Terminal
Port
Rollover
(DCE, RJ-45) Cable
Adapter “TERMINAL”
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin
DB-25
Pin
Signal
RTS
13
8
8
5
CTS
DTR
2
7
7
6
DSR
TxD
3
6
6
3
RxD
GND
4
5
5
7
GND
GND
5
4
4
7
GND
RxD
6
3
3
2
TxD
DSR
7
2
2
20
DTR
CTS
81
1
1
4
RTS
3
(DTE, DB-25)
Pin 1 is connected to pin 8 inside the Cisco VG450 Voice Gateway.
Auxiliary Port to Modem
Figure A-3 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 male DCE adapter
(labeled MODEM); Table A-3 lists the pinouts.
Figure 9: Auxiliary Port to Modem—Cable and Adapter
Table 8: Auxiliary Port to Modem—Cable Pinouts (RJ-45 to DB-25)
Auxiliary
Port
RJ-45-to-RJ-45 RJ-45-to-DB-25
Modem Port
(DTE, RJ-45)
Rollover Cable Adapter
“MODEM”
(DCE,
DB-25)
Signal
RJ-45 Pin
RJ-45 Pin
RJ-45 Pin
DB-25
Pin
Signal
Cisco VG450 Voice Gateway Hardware Installation Guide
33
Cable Specifications and Information
Alternative Connections to Terminal and Modem
Auxiliary
Port
RJ-45-to-RJ-45 RJ-45-to-DB-25
Modem Port
(DTE, RJ-45)
Rollover Cable Adapter
“MODEM”
(DCE,
DB-25)
RTS
1
8
8
4
RTS
DTR
2
7
7
20
DTR
TxD
3
6
6
2
TxD
GND
4
5
5
7
GND
GND
5
4
4
7
GND
RxD
6
3
3
3
RxD
DSR
7
2
2
8
DCD
CTS
8
1
1
5
CTS
Alternative Connections to Terminal and Modem
Your Cisco VG450 Voice Gateway ships with an RJ-45-to-RJ-45 rollover cable and two adapters for connection
to a PC, a terminal, or a modem. If you want to use an RJ-45 straight-through cable or other adapters, see
Table A-4 for usable cable and adapter combinations.
Table 9: Alternative Terminal and Modem Connections
Cisco VG450 Port Connection RJ-45 Cable Type Adapter
Console port to PC
Straight-through DCE, DB-9 female
Auxiliary port to modem
Rollover4
DCE5, DB-25, male
Straight-through DTE2, DB-25, male
4
5
An octal cable or RJ-45 breakout cable is equivalent to a rollover cable.
Modify the DB-25 adapter by removing the wire in pin 6 and placing it in the pin 8 position.
Gigabit Ethernet Port Pinouts (RJ-45)
Figure A-4 shows the RJ-45 connector wiring for the Gigabit Ethernet cable; Table A-5 lists the pinouts.
Note
Pinout shown is for category 3, 4, or 5 10/100BASE-T connection to an Gigabit Ethernet switch.
Cisco VG450 Voice Gateway Hardware Installation Guide
34
Cable Specifications and Information
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
Figure 10: RJ-45 Connector Wiring
Table 10: Gigabit Ethernet Port Pinouts (RJ-45)
6
Pin Signal
1
TX+
2
TX–
3
RX+
4
–
5
–
6
RX–
7
–
8
–
6
Any pin not referenced is not connected.
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
Figure A-5 shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface.
Cisco VG450 Voice Gateway Hardware Installation Guide
35
Cable Specifications and Information
Cable Specifications and Information
Figure 11: RJ-21 Connector Wiring
Table A-6 lists the pinouts for the RJ-21 connector.
Table 11: RJ-21 Connector Pinouts
Port
Number
Connector Pin Number Signal Port
Number
Connector Pin Number Signal
1
126
RingTip 13
1338
RingTip
2
227
RingTip 14
1439
RingTip
3
328
RingTip 15
1540
RingTip
4
429
RingTip 16
1641
RingTip
5
530
RingTip 17
1742
RingTip
6
631
RingTip 18
1843
RingTip
7
732
RingTip 19
1944
RingTip
8
833
RingTip 20
2045
RingTip
9
934
RingTip 21
2146
RingTip
10
1035
RingTip 22
2247
RingTip
11
1136
RingTip 23
2348
RingTip
12
1237
RingTip 24
2449
RingTip
—
—
—
25, 50, 51, 52
GND
Cisco VG450 Voice Gateway Hardware Installation Guide
36
—

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