Cisco Systems OL-12812-01 User's Manual

Connecting Cisco Voice Network Modules to the

Network

Revised: May 1, 2008, OL-12812-01

This guide describes how to connect Cisco voice network modules to your network. It contains the following sections:

•

•

Voice Network Modules, page 1

2- and 4-Channel Voice Network Modules, page 2

•

•

•

•

•

•

4-, 8-, and 48-Channel High-Density Voice Network Modules, page 2

60-Channel High-Density Voice Network Module, page 3

Voice Network Module LEDs, page 7

IP Communications High-Density Digital Voice or Fax Network Module, page 8

Related Documents, page 16

Obtaining Documentation, Obtaining Support, and Security Guidelines, page 17

Voice Network Modules

The voice functionality built into Cisco IOS software enables modular access routers to carry voice traffic, such as telephone calls and faxes, as Voice over IP (VoIP) simultaneously with data traffic over

LANs, MANs, and WANs. Voice network modules convert telephone voice signals into a form that can be transmitted over an IP network.

Voice network modules convert telephone voice signals into a form that can be transmitted over an IP network. These modules have one or two slots for installing supported interface cards. Voice interface cards (VICs) or voice/WAN interface cards (VWICs) installed in the voice network module provide physical connections to the telephony equipment or network, and are connected using the appropriate cables.

You can install one voice interface card in a 1-slot voice network module, and two voice interface cards in a 2-slot module.

Americas Headquarters:

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Connecting Cisco Voice Network Modules to the Network

2- and 4-Channel Voice Network Modules

2- and 4-Channel Voice Network Modules

This section describes the following modules:

• 1-slot 2-channel voice network module (NM-1V) (see

Figure 1 )

• 2-slot 4-channel voice network module (NM-2V) (see

Figure 2 )

Figure 1 1-Slot 2-Channel Voice Network Module (NM-1V)

1

VOICE

2V

V1 V0

EN

Figure 2 2-Slot 4-Channel Voice Network Module (NM-2V)

Module screw

VOICE

2V

V1 V0

EN

Module screw

Enable

LED

4-, 8-, and 48-Channel High-Density Voice Network Modules

This section describes the following modules:

• 1-slot 4-channel high-density voice network module with one digital signal processor (DSP)

(NM-HD-1V) (see

Figure 3 )

•

•

2-slot 8-channel high-density voice network module with one DSP (NM-HD-2V) (see

Figure 4 )

2-slot 48-channel high-density enhanced network module with 3 DSPs, supporting up to 8 analog or

48 digital channels (NM-HD-2VE) (see Figure 5

)

Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the 2-slot 48-channel high-density enhanced network module (NM-HD-2VE) only to intrabuilding or nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.

2



60-Channel High-Density Voice Network Module

Note For the NM-HD-1V, NM-HD-2V, and NM-DS-2VE network modules, DSPs are on-board and are not field-replaceable units (FRUs).

Note The NM-HD-1V, NM-HD-2V, and NM-HD-2VE network modules replace the NM-1V and NM-2V network modules. The NM-1V and NM-2V network modules are still available for use on Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series routers.

1-Slot 4-Channel High-Density Network Module (NM-HD-1V) Figure 3

NM-HD

-1V

V0

EN

Figure 4

NM-HD

-2V

V1

2-Slot 8-Channel High-Density Voice Network Module (NM-HD-2V)

V0

EN

Figure 5

NM-HD

-2VE

V1

2-Slot 48-Channel High-Density Voice Network Module (NM-HD-2VE)

V0

EN


This section describes the 60-channel high-density voice (HDV) network module, shown in Figure 6

.

When used in conjunction with T1/E1 multiflex trunk interface cards and packet voice digital signal processor modules (PVDMs), this module is also called a digital T1/E1 packet voice trunk network

module.


3



Figure 6 60-Channel High-Density Voice Network Module (NM-HDV)

NM-HDV

BANK 4 BANK 3 BANK 2 BANK 1 BANK 0

V0

EH

The 60-channel HDV network module converts voice and fax into IP packets or frames that can be transmitted as VoIP over a variety of transport technologies (channelized T1/E1, Frame Relay,

Asynchronous Transfer Mode (ATM), and others). The number of channels supported depends on the number of PVDMs installed:

• Up to 6 channels per PVDM (30 channels for cards with 5 PVDMs) for high-complexity vocoders that support the following compression algorithms: G.711, G.726, G.729, G.723.1, G.728, and Fax

Relay

• Up to 12 channels per PVDM (60 channels for cards with 5 PVDMs) for medium-complexity vocoders that support the following compression algorithms: G.711, G.726, G.729a, and Fax Relay

Both a 60-channel HDV network module and a voice interface card (VIC) are required to connect to the public switched telephone network (PSTN) or a PBX. One VIC (providing one or two T1/E1 line interfaces) can be installed in the HDV network module. Currently, only the 1- and 2-port T1/E1 multiflex trunk interface cards (VWIC-1MFT-T1, VWIC-2MFT-T1, and VWIC-2MFT-T1-DI) are supported using channel-associated signaling (CAS). In Cisco 3620 and Cisco 3640 routers, at least one other network module or WAN interface card (WIC) must be installed in the router to provide the connection to the IP LAN or WAN. In Cisco 3660 routers, a network module is required for WAN access or a direct connection is required for LAN access. In Cisco 2600 series routers, a WIC is required for

WAN access or a direct connection is required for LAN access.

Packet Voice DSP Modules

The HDV network module contains five 72-pin SIMM sockets or banks for packet voice DSP modules

(PVDMs), numbered 0 through 4. (See

Figure 7

.) Each socket can be filled with a single 72-pin PVDM.

The PVDMs must be installed starting from slot 0.

Note PVDM and PVDM2 modules are not interchangeable. Use PVDM modules with the NM-HDV network module only, and use PVDM2 modules with the NM-HDV2 network module only.

4



Figure 7 PVDM Slot Locations

4 3 2 1 0


PVDM slots

PVDM Orientation

PVDMs are manufactured with a polarization notch to ensure proper orientation and alignment holes to

ensure proper positioning. Figure 8

shows the polarization notch and alignment holes on a PVDM card.

PVDM cards are installed with the connector edge down, the polarization notch near the front of the chassis, and the component side facing the right side of the chassis.

Caution To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the

HDV network module, avoid using excessive force when you remove or replace PVDMs.

Figure 8 PVDM Orientation

Alignment holes

Connector edge Polarization notch


5



Removing PVDMs

To remove PVDMs, follow these steps:

Step 1 Find the PVDM sockets on the HDV network module. (See

Figure 7 .)

Caution Handle PVDMs by the card edges only. PVDMs are ESD-sensitive components and can be damaged by mishandling.

Step 2 Remove one PVDM at a time, beginning with the PVDM in bank 4. To lift the PVDM out of its socket, pull the locking spring clips on both sides outward and tilt the PVDM toward the right side of the chassis, free of the clips. (See

Figure 9 .)

Figure 9 Removing PVDMs

Top view

Front of chassis

2. Push the top of the

PVDM forward and down.

Step 3

Step 4

1. Pull the locking spring clips outward.

PVDM polarization notch

Hold the PVDM by the edges with your thumb and index finger and lift it out of the socket. Place the removed PVDM in an antistatic bag to protect it from ESD damage.

Repeat

Step 2 and Step 3 for each PVDM.

Installing PVDMs

To install PVDMs, follow these steps:

Step 1 Find the PVDM sockets on the HDV network module. (See

Figure 7 .)

Caution Handle PVDMs by the card edges only. PVDMs are ESD-sensitive components and can be damaged by mishandling.

Step 2 Hold the PVDM with the polarization notch on the right, near the front of the chassis, and the component side away from you, with the connector edge at the bottom. (See

Figure 8 .)

6



Voice Network Module LEDs

Step 3

Step 4

Beginning with bank 0, insert the PVDM into the connector slot at an angle, tilted toward the right side of the chassis. Align the PVDM in a vertical position (see

Figure 10

) by using the minimum amount of force required. When the PVDM is properly seated, the socket guide posts fit through the alignment holes, and the connector springs click into place.

Ensure that each PVDM is straight and that the alignment holes (as shown in Figure 9

) line up with the plastic guides on the socket.

Figure 10 Installing PVDMs

View from front of board

1. Insert the PVDM into the socket at an angle from vertical.

2. Push the top of the PVDM down and back.

3.

The socket guide posts fit through the holes in the PVDM.

4.

The locking springs clip the back of the PVDM.

Caution It is normal to feel some resistance, but do not use excessive force on the PVDM and do not touch the surface components.

Step 5

Repeat Step 2

through

Step 4 for each PVDM.

Voice Network Module LEDs

All network modules have an enable (EN) LED. This LED indicates that the module has passed its self-tests and is available to the router. The following network modules have no additional LEDs. (See

Figure 11 for a sample faceplate.)

• NM-1V

•

•

•

•

NM-2V

NM-HD-1V

NM-HD-2V

NM-HD-2VE


7


IP Communications High-Density Digital Voice or Fax Network Module

Figure 11 Voice Network Module LED

Module screw

VOICE

2V

V1 V0

EN

Module screw

Enable

LED

HDV Network Module LEDs

High-density network modules have an enable (EN) LED, and five LEDs for the PVDM banks, numbered 0 through 4. The enable LED indicates that the module has passed its self-tests and is available to the router. The BANK 0 through BANK 4 LEDs indicate the current operating condition of the

PVDMs installed on the card. (See

Figure 12

.) If the BANK LEDs do not come on after initial installation and configuration, check that the PVDMs are properly seated in their slots.

Figure 12 HDV Network Module LEDs

NM-HDV

V0

EH BANK 4 BANK 3 BANK 2 BANK 1 BANK 0

BANK 4

LED

BANK 2

BANK 3

LED

LED

LED

BANK 0

BANK 1

LED

ENABLE

LED

IP Communications High-Density Digital Voice or Fax Network

Module

This section describes the IP communications high-density digital voice or fax (NM-HDV2) network module. This module is available in three base-board stock-keeping units (SKUs):

•

•

•

NM-HDV2, with no built-in T1/E1 ports, shown in

Figure 13

NM-HDV2-1T1/E1, with one built-in T1/E1 port, shown in

Figure 14

NM-HDV2-2T1/E1, with two built-in T1/E1 ports, shown in

Figure 15

8




These three base-board SKUs also include a single VIC or VWIC slot for Foreign Exchange Station

(FXS), Foreign Exchange Office (FXO) or centralized automated message accounting trunk protocol

(CAMA), receive and transmit (E&M), Direct Inward Dial (DID), Basic Rate Interface (BRI), or E1/T1 interface cards.

Figure 13 NM-HDV2

See Manual before Installation.

NM-HDV2

V0

PVDM 3 PVDM 2 PVDM 1 PVDM 0

EN

Figure 14

NM-HDV2-1T1/E1

NM-HDV2-1T1/E1

PVDM 3 PVDM 2


CTRLR T1/E1 0

V0

AL

LP

CD

PVDM 1 PVDM 0

EN

Figure 15

NM-HDV2-2T1/E1

NM-HDV2-2T1/E1


PVDM 3 PVDM 2

AL

LP

CD

CTRLR T1/E1 1 CTRLR T1/E1 0

V0

AL

LP

CD

PVDM 1 PVDM 0

EN

The NM-HDV2 network module converts voice and fax into IP packets or frames that can be transmitted as VoIP over a variety of transport technologies (channelized T1, Frame Relay, Asynchronous Transfer

Mode [ATM], and others).

Packet Fax or Voice DSP Modules

The packet fax or voice digital signal processor (DSP) module (PVDM2) is available in five stock-keeping units (SKUs):

Table 1 PVDM2 Module SKUs

Module Name Description

PVDM2-8 8-channel packet fax or voice DSP module

PVDM2-16 16-channel packet fax or voice DSP module


9



Table 1 PVDM2 Module SKUs

Module Name Description

PVDM2-32

PVDM2-48

PVDM2-64

32-channel packet fax or voice DSP module



You can install up to four PVDM2 modules on all of the NM-HDV2 SKUs. The number of channels supported depends on the number and density-type of PVDM2 modules installed.

Table 2 Channels Per PVDM2 Module Type

Module Name

PVDM2-8

PVDM2-16

PVDM2-32

PVDM2-48

PVDM2-64

Max Channels for High

Complexity

4

6

12

18

24

1

Max Channels for

Medium Complexity

4

8

16

24

32

2

Range of Channels for

Flexi Complexity

4-8

6-16

12-32

18-48

24-64

3

1.

High-complexity vocoders supported: G.711, G.726, G.729, G.723.1, G.728, and Fax Relay.

2.

Medium-complexity vocoders supported: G.711, G.726, G.729a, and Fax Relay.

3.

Flexi vocoders supported: G.711, G.726, G.729, G.723.1, G.728, and Fax Relay (number of channels depends on codec selected).

10

Note PVDM and PVDM2 modules are not interchangeable. Use PVDM modules with the NM-HDV network module only, and use PVDM2 modules with the NM-HDV2 network module only.

When used with PVDM2 modules and either the built-in T1/E1 ports or the T1/E1 voice or WAN interface cards (VWIC), the NM-HDV2 network module provides the interface to the PBX, the PSTN, or WAN. The following VWICs are supported:

•

•

•

•

•

•

•

•

VWIC-1MFT-T1

VWIC-2MFT-T1

VWIC-2MFT-T1-DI

VWIC-1MFT-E1

VWIC-2MFT-E1

VWIC-2MFT-E1-DI

VWIC-1MFT-G703

VWIC-2MFT-G703

When used with PVDM2 modules and next-generation analog or BRI voice interface cards (VIC2), the

NM-HDV2 network module provides the interface to telephony equipment (PBX, key systems, telephones, and fax machines) and to the PSTN. The following VICs are supported:

• VIC-2DID

• VIC-1J1




•

•

•

•

•

•

VIC-4FXS/DID (DID feature not supported)

VIC2-2FXO

VIC2-4FXO

VIC2-2FXS

VIC2-2E/M

VIC2-2BRI-NT/TE

Configuring E1 Ports for Normal or Wetting Current Mode

On the NM-HDV2-1T1/E1 and NM-HDV2-2T1/E1 network modules there is a jumper block for each built-in T1/E1 port that controls whether the port supports normal or wetting current mode. Wetting current is a small amount of electrical current (60 to 140 milliamps) sent from the central office to the card to prevent the corrosion of electrical contacts in the module’s network connection. Depending on how your E1 line is provisioned, you might have to change the jumper setting on the network module to allow proper operation.

The jumper blocks are identified on the printed circuit board of the NM-HDV2-1T1/E1 and

NM-HDV2-2T1/E1 network modules as J6 and J7. (See Figure 16 .) J6 is the jumper block for T1/E1

controller 1 and J7 is the jumper block for T1/E1 controller 0. The pins on each jumper block are numbered 1 to 3 from right to left.

• To configure an E1 port for normal mode, set the jumper to pins 2 and 3.

• To configure an E1 port for wetting current mode, set the jumper to pins 1 and 2.

Figure 16 shows the jumper block configured for normal mode, with the jumper set to pins 2 and 3.

Tip If you are unsure whether your E1 line is configured for normal or wetting current mode, check with your provider. You can also use the show controllers E1 command to look for line code violations and path code violations. These errors can indicate that the jumper is not set correctly.


11



Figure 16 NM-HDV2-2T1/E1 Jumpers Configured for Normal Mode

J6 J7

Pin 3 Pin 2 Pin 1

Installing PVDM2 Modules

The NM-HDV2 network modules contain four 80-pin SIMM sockets for PVDM2 modules, numbered 0 through 3. (See

Figure 17 .) Each socket can be filled with a single 80-pin PVDM2 module.

12



Figure 17

3 2


PVDM2 Module Slot Locations

1 0

PVDM2 Module Orientation

PVDM2 modules are manufactured with a polarization notch to ensure proper orientation, and alignment

holes to ensure proper positioning. Figure 18 shows the polarization notch and alignment holes on a

PVDM2 module. PVDM2 modules are installed with the connector edge down, the polarization notch near the back of the chassis.

Caution To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the

NM-HDV2 network module, avoid using excessive force when you remove or replace PVDM2 modules.

Figure 18 PVDM2 Module Orientation

Alignment holes

Connector edge

Alignment notch

Polarization notch


13



Removing PVDM2 Modules

To remove PVDM2 modules, follow these steps:

Step 1 Find the PVDM2 sockets on the NM-HDV2 network module. (See

Figure 17 .)

Caution Handle PVDM2 modules by the card edges only. PVDM2 modules are ESD-sensitive components and can be damaged by mishandling.

Step 2 Remove one PVDM2 module at a time. To make your job easier, if you have a PVDM2 module in both socket 0 and socket 1, remove PVDM 1 before removing PVDM 0. Similarly, remove PVDM 3 before removing PVDM 2. To lift the PVDM2 module out of its socket, pull the locking spring clips on both sides outward and tilt the PVDM2 module toward the left side of the chassis, free of the clips. (See

Figure 19 .)

Figure 19 Removing PVDM2 Modules

Top view

Front of chassis

2. Push the top of the

PVDM forward and down.

Step 3

Step 4

1. Pull the locking spring clips outward.

PVDM polarization notch

Hold the PVDM2 module by the edges with your thumb and index finger and lift it out of the socket.

Place the removed PVDM2 module in an antistatic bag to protect it from ESD damage.

Repeat

Step 2 and Step 3 for each PVDM2 module.

Installing PVDM2 Modules

To install PVDM2 modules, follow these steps:

Step 1 Find the PVDM2 sockets on the NM-HDV2 network module. (See

Figure 17 .)

Caution Handle PVDM2 modules by the card edges only. PVDM2 modules are ESD-sensitive components and can be damaged by mishandling.

14




Step 2

Step 3

Step 4

Hold the PVDM2 module with the polarization notch on the right, near the back of the chassis, with the

connector edge at the bottom. (See Figure 18 .)

Again, to make your job easier, begin with socket 0, then socket 1, or socket 2, then socket 3. Insert the

PVDM2 module into the connector slot at an angle, tilted toward the left side of the chassis. Align the

PVDM2 module in a vertical position (see

Figure 20 ), by using the minimum amount of force required.

When the PVDM2 module is properly seated, the socket guide posts fit through the alignment holes, and the connector springs click into place.

Ensure that each PVDM2 module is straight and that the alignment holes (as shown in

Figure 19

) line up with the plastic guides on the socket.

Note Be sure to align the alignment notch in the bottom of the PVDM2 module with the rib in the

80-pin socket.

Figure 20 Installing PVDM2 Modules

View from front of board

1. Insert the PVDM2 into the socket at an angle from vertical.

2. Push the top of the PVDM2 down and back.

3.

The socket guide posts fit through the holes in the PVDM2.

4.

The locking springs clip the back of the PVDM2.

Caution It is normal to feel some resistance, but do not use excessive force on the PVDM2 module, and do not touch the surface components.

Step 5

Repeat Step 2

through

Step 4 for each PVDM2 module.

NM-HDV2 Network Module LEDs

IP communications high-density digital voice or fax (NM-HDV2) network modules have an enable (EN)

LED, and four LEDs for the PVDM2 modules, numbered 0 through 3. The enable LED indicates that the module has passed its self-tests and is available to the router. The PVDM 0 through PVDM 3 LEDs indicate the current operating condition of the PVDM2 modules installed on the card. (See

Figure 21

.)

If the PVDM LEDs are not green after initial installation and configuration, check that the PVDM2 modules are properly seated in their slots.


15

Related Documents


NM-HDV2 Network Module LEDs Figure 21

NM-HDV2

V0


PVDM 1 PVDM 0

EN

PVDM 3 PVDM 2

PVDM 3

LED

PVDM 2

LED

PVDM 1

LED

ENABLE

LED

PVDM 0

LED

The NM-HDV2-1T1/E1 and NM-HDV2-2T1/E1 network modules have LEDs monitoring the alarm

(AL), loopback (LP), and carrier detection (CD) conditions of the built-in T1/E1 ports. (See

Figure 22 .)

NM-HDV2-2T1/E1 LEDs Figure 22

NM-HDV2-2T1/E1


PVDM 3 PVDM 2

AL

LP

CD

CTRLR T1/E1 1

PVDM 3

LED

PVDM 2

LED

Alarm, loopback, and carrier detect

LEDs

V0

AL

LP

CD

PVDM 1 PVDM 0

EN

CTRLR T1/E1 0

LED

Alarm, loopback, and

PVDM 0

LED carrier detect

LED

LEDs

PVDM 1 ENABLE

Related Documents

For additional information, see the following documents and resources.

Related Topic

Regulatory compliance and safety information

Cisco IOS software website and reference documentation

Document Title

Cisco Network Modules and Interface Cards Regulatory Compliance and Safety

Information http://www.cisco.com/en/US/docs/routers/access/interfaces/rcsi/IOHrcsi.html

Cisco IOS Software http://www.cisco.com/web/psa/products/index.html?c=268438303

16



Obtaining Documentation, Obtaining Support, and Security Guidelines

Obtaining Documentation, Obtaining Support, and Security

Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly

What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

CCDE, CCENT, Cisco Eos, Cisco Lumin, Cisco StadiumVision, the Cisco logo, DCE, and Welcome to the Human Network are trademarks;

Changing the Way We Work, Live, Play, and Learn is a service mark; and Access Registrar, Aironet, AsyncOS, Bringing the Meeting To You,

Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, CCVP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press,

Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Collaboration Without Limitation, EtherFast, EtherSwitch, Event

Center, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, iQ Expertise, the iQ logo, iQ Net

Readiness Scorecard, iQuick Study, IronPort, the IronPort logo, LightStream, Linksys, MediaTone, MeetingPlace, MGX, Networkers, Networking

Academy, Network Registrar, PCNow, PIX, PowerPanels, ProConnect, ScriptShare, SenderBase, SMARTnet, Spectrum Expert, StackWise, The

Fastest Way to Increase Your Internet Quotient, TransPath, WebEx, and the WebEx logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.

All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0804R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

© 2008 Cisco Systems, Inc. All rights reserved.


17

Obtaining Documentation, Obtaining Support, and Security Guidelines


18


Cisco Systems OL-12812-01 User's Manual

Connecting Cisco Voice Network Modules to the

Network

Voice Network Modules

2- and 4-Channel Voice Network Modules

4-, 8-, and 48-Channel High-Density Voice Network Modules

60-Channel High-Density Voice Network Module

Packet Voice DSP Modules

PVDM Orientation

Removing PVDMs

Top view

Front of chassis

Installing PVDMs

View from front of board

Voice Network Module LEDs

HDV Network Module LEDs

IP Communications High-Density Digital Voice or Fax Network

Module

Packet Fax or Voice DSP Modules

Configuring E1 Ports for Normal or Wetting Current Mode

Installing PVDM2 Modules

PVDM2 Module Orientation

Removing PVDM2 Modules

Top view

Front of chassis

Installing PVDM2 Modules

View from front of board

NM-HDV2 Network Module LEDs

Related Documents

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Guidelines

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