Data Sheet
High-Density Digital Voice/Fax Network Modules
for Cisco 2800/2900/3800/3900 Series
The IP Communications High-Density Digital Voice/Fax Network Modules are an addition to the Cisco
®
Systems IP Communications suite of solutions. The IP Communications High-Density Digital Voice/Fax
Network Modules deliver high-density digital voice connectivity, high-density WAN connectivity, analog
voice connectivity, and conferencing and transcoding capability in a network module form factor.
The network modules provide enterprises, managed service providers, and service providers with the
ability to directly connect the public switched telephone network (PSTN), traditional telephony equipment
(such as private branch exchange (PBX), key systems, analog telephones, and fax machines), and WAN
®
to Cisco 2811, 2821, 2851, 2911, 2921, 2951, 3825, 3845 and 3925, 3945 Unified Communications
Routers for either IP Communications capabilities or pure toll bypass. The IP Communications HighDensity Digital Voice/Fax Network Modules flexibly operates within two different Cisco Unified
Communications (UC) environments—the Cisco Unified Communications Manager (UCM) system with
Survivable Remote Site Telephony (SRST) or Cisco Unified Communications Manager Express (UCME).
The network modules can be integrated with these IP Telephony solutions in a Unified Communications
Router, to provide a complete IP Communications solution for full service branch customers.
Figure 1.
NM-HDV2-2T1/E1 with a 2-Port FXS VIC
Cisco IP Communications solutions provide the means for integrating voice and data allowing users to take
advantage of services such as IP telephony, integrated services, and toll-bypass. These solutions allow enterprises,
managed network service providers, and service providers to reap the advantages of Unified Communications such
as lower operating costs and increased productivity. Cisco Unified Communications solutions also enable packet
voice technologies including voice over IP (VoIP) (including H.323, Media Gateway Control Protocol (MGCP), and
Sessions Initiation Protocol (SIP), voice over Frame, voice over ATM (including AAL2 and AAL5 adaptation layers).
The IP Communications High-Density Digital Voice/Fax Network Modules are an integral part of the Cisco Unified
Communications offering, delivering a versatile combination of digital voice, analog voice, and data capabilities in a
single network module form factor. They not only provide the IP telephony gateway to Cisco UC architectures for
calls to and from the PSTN and the WAN, but also allow enterprises to deploy networks with existing traditional
telephony equipment until they are ready to migrate to IP telephony. Features include high-density digital voice and
WAN connectivity up to four T1/E1 ports, analog voice connectivity up to four ports, and up to 50 conferencing and
transcoding sessions1. Enterprises can now deploy all these rich features on a single network module, enabling
connectivity to the PSTN, traditional telephony equipment such as PBXs, key systems, analog telephones, fax
machines, and the enterprise WAN.
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Page 1 of 12
Data Sheet
This product supports three network module versions, with the option of zero, one, or two built-in T1/E1 ports, as
shown in Table 2. Each built-in port can be conveniently software-configured to support either T1 or E1 operation.
Each network module also supports a single VIC/VWIC slot that can be fitted with a Cisco voice/WAN interface card
(VWIC) or voice interface card (VIC). The Cisco VICs are daughter cards that install into the network modules
and provide the interface to the PSTN and to telephony equipment (PBXs, key systems, fax machines, phones).
The Cisco VWICs are daughter cards that provide the interface to the PBX, PSTN, and/or WAN. Figure 1 shows
a NM-HDV2-2T1/E1 with two built-in T1/E1 ports and a VIC3-2FXS/DID in the VIC/VWIC slot.
Cisco VWICs supported include 1- and 2-port T1 and E1 interface cards with optional drop-and-insert capability
along with a G.703 interface card option. These cards cover a full range of digital voice and WAN connectivity
options. A variety of VIC options are supported including 2-port foreign exchange station (FXS), direct inward dial
(DID), foreign exchange office (FXO), E&M (ear and mouth) analog interface cards, 4-port FXS and 4-port FXO
cards and a 2-port ISDN Basic Rate Interface (BRI) digital interface card providing -40V phantom power. These
cards cover the entire range of analog connectivity options along with user-side and network-side digital BRI
connections. Please see Table 3 below for details on options supported.
The IP Communications High-Density Digital Voice/Fax Network Modules are used with the PVDM2 Packet
Fax/Voice DSP modules, providing scalability from 4 to 120 channels and featuring the latest digital signal
processing technology. A maximum of four PVDM2s can be installed on each NM-HDV2 network module. The IP
Communications High-Density Digital Voice/Fax Network Modules that are deployed on the Cisco 2811, 2821, 2851,
2911, 2921, 2951, 3825, 3845, 3925 and 3945 Unified Communications Routers can also be conveniently used with
the onboard PVDM2 DSP modules (on the 2800 and 3800 Series only). The PVDM2s are not supported on the
Cisco 2900 and 3900 Series motherboards. Enterprises can conveniently select the minimum number and densitytype PVDM2s depending on the voice channels they are deploying, and scale the number of PVDMs as they expand.
These PVDM2 can be configured for high-, medium- or flex complexity via software. Flex complexity is the default
configuration, and in this mode, the network module will dynamically negotiate the appropriate codec (medium or
high) on a call-by-call basis depending on the PVDM2s available.
Enhanced Cisco conferencing and transcoding features on the IP Communications High-Density Digital Voice/Fax
Network Modules are available. The network modules provide a hardware-based conference resource at branch
offices to facilitate multiparty conferences, thereby reducing the costs of delivering conferencing resources across
the WAN. Transcoding resources within the same network module further reduces bandwidth consumption and
costs by compressing traffic across the WAN, and enabling communications between devices that support different
codecs. Up to 50 eight-party G.711 ad-hoc conferences, and up to 32 eight-party multicodec (G.711/G.729) ad-hoc
conferences can be supported on a single IP Communications High-Density Digital Voice/Fax Network Module.
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Page 2 of 12
Data Sheet
The IP Communications High-Density Digital Voice/Fax Network Modules are integrated in the Cisco 2811, 2821,
2851, 2911, 2931, 2951, 3825, 3845, 3925, and 3945 Unified Communications routers and are interoperable with
the full range of Cisco IP Communications solutions—including Cisco IP phones, Cisco UCM, Cisco UCME, Cisco
Unity software, Cisco Unity Express, Cisco IP Contact Center (IPCC), and Cisco IPCC Express. Up to four network
modules can be configured in a Cisco 3845 and 3945 Unified Communications Router, supporting up to 480 and 720
voice channels in medium complexity codec on the Cisco 3845 and 3945, respectively. The IP Communications
High-Density Digital Voice/Fax Network Module combined with Survivable Remote Site Telephony (operating with
Cisco UCM) or Cisco UCME in a Unified Communications Router makes an ideal single-box communications
solution for IP telephony in branch offices. Table 5 lists the maximum number of network modules that are supported
on a Unified Communications Router.
Important Features and Benefits
Table 1.
The IP Communications Digital Voice/Fax Network Modules Provide a Wide Range of Features and Benefits
Product Features
Benefits
Rich set of features are delivered on
a single network module form factor
Features such as data WAN connectivity, high-density digital voice connectivity, analog voice
connectivity and conferencing/transcoding are supported on a single network module form factor,
allowing customers to utilize other network module slots for other applications. A single NM-slot
platform can be deployed for small offices, providing a cost-effective solution for IP telephony.
Tightly integrated into the Cisco
Integrated Services Routers
The IP Communications High-Density Digital Voice Network Modules are tightly integrated into the
Cisco Integrated Services Routers, providing a single IP communications solutions for the full-service
branch office. The Cisco Integrated Services Routers run Cisco IOS Software, incorporating advanced
quality-of-service (QoS) features, intelligent network queuing, and standards-based encapsulation
providing efficient direct transport of both voice and fax over IP, Frame Relay, and ATM networks.
Efficiently provides analog and digital
voice connectivity to the PSTN and
traditional office equipment
Analog and digital voice connectivity are supported in a single network module, enabling customers to
efficiently provide flexible and reliable connectivity to public or private switched telephone networks, and
phones, faxes, PBXs, and key systems.
Integrated data WAN and digital
voice connectivity
Voice and WAN data is integrated on the same T1 interface, providing a cost-effective way of delivering
PSTN and data WAN access for small branch offices.
Supports higher-densities of digital
voice connectivity
Supports up to a maximum of four T1/E1 ports in a single network module slot for digital voice
connectivity, ideal for offices deploying toll bypass (transporting voice and fax traffic across the WAN to
reduce or eliminate toll charges).
Displays next-generation robust, scalable
and powerful digital signal processor
(DSP) technology
Features the latest digital signal processing technology that can support higher call densities per DSP,
and more flexibility in channel allocation per DSP. Up to four PVDM2 slots are supported per network
module, providing scalability of 4-120 channels per network module. These DSPs can be shared
among multiple IP Communications High-Density Digital Voice/Fax Network Modules that are installed
in an Integrated Services Router. DSPs on the motherboard on the Cisco 2811, 2821, 2851, 2911,
2921, 2951, 3825, 3845, 3925, and 3945 Integrated Services Routers can also be used with the NMHDV2 network modules.
Built-in and easily-configurable
T1/E1 ports
The convenient built-in ports can be easily configured for either T1 or E1 operation, providing flexibility
when ordering, provisioning and in multi-national enterprise deployments.
Scalable and flexible for enterprise
office requirements of any size
The IP Communications High-Density Network module is supported on the Cisco 2811, 2821, 2851,
2911, 2921, 2951, 3825, 3845, 3925, and 3945 Integrated Services Routers, providing a broad range of
selection depending on branch office sizes and communications needs. The network module can be
reused as the platforms scale, delivering investment protection.
There are various applications for the IP Communications High-Density Digital Voice/Fax Network Module. In the
application below, CiscoUCMat headquarters delivers the call control for IP phones at the branch offices (Figure 2).
Each branch office is enhanced with SRST to maintain basic telephony services at the branch office if the WAN goes
down or connectivity to the Cisco UCM is lost. The IP Communications High-Density Digital Voice/Fax Network
Module is integrated into the Cisco Full Service Branch Office routers located at the branch office. There is frequent
voice communication between branch offices, and the PSTN. As a result, voice calls between offices are VoIP and
are routed over the WAN for telephony cost savings. The NM-HDV2-2T1/E1 is used to deliver T1 WAN access for
both voice and data connectivity. Calls to external parties are placed through T1 PSTN access. In addition, the
VIC/VWIC slot on the NM-HDV2-2T1/E1 is populated with a VIC3-4FXS/DID to connect to analog phones and
fax machines.
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Page 3 of 12
Data Sheet
Figure 2.
IP Telephony Application using NM-HDV-2T1/E1 (with a VIC3-4FXS/DID), and SRST in a Full-Service Branch
Table 2.
Cisco IP Communications High-Density Digital Voice/Fax Network Module
Module
Description
Application
NM-HDV2
IP Communications High-Density Digital
Voice/fax Network Module
Supports a VIC/VWIC slot that can fitted with either digital or analog/BRI
voice/WAN interface cards. Supports a maximum of 60 channels of digital
voice, or four channels of analog voice in medium complexity codec. Up to four
PVDM2 Packet Fax/Voice DSP modules can be used.
NM-HDV2-1T1/E1
IP Communications High-Density Digital
Voice/fax Network Module with one Built-in
T1/E1 port
Includes a built-in T1/E1 port and a VIC/VWIC slot that can be fitted with either
digital or analog/BRI voice/WAN interface cards. Supports a maximum of 90
channels of digital voice, or 30 channels of digital voice and four channels of
analog voice in medium complexity codec. Up to four PVDM2 Packet Fax/Voice
DSP modules can be used.
NM-HDV2-2T1/E1
IP Communications High-Density Digital
Voice/fax Network Module with two Built-in
T1/E1 ports
Includes two built-in T1/E1 ports and a VIC/VWIC slot that can be fitted with
either digital or analog/BRI voice/WAN interface cards. Supports a maximum of
120 channels of digital voice, or 60 channels of digital voice and four channels
of analog voice in medium complexity codec. Up to four PVDM2 Packet
Fax/Voice DSP modules can be used.
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Page 4 of 12
Data Sheet
Table 3.
VIC/VWIC Options for the IPC High-Density Digital Voice Network Modules
VIC/VWIC Options
for the IPC HighDensity Digital
Voice NM
Description
Application
VIC3-2FXS/DID
2-port FXS/DID voice/fax interface card.
FXS port is used to connect directly to phones, fax machines, and key systems.
Generates battery polarity reversal and caller ID.
DID port is used to provide off-premises DID connection from central office.
Serves only incoming calls from the PSTN. Does not support caller ID in DID
mode.
VIC3-2FXS-E/DID
2-port Enhanced FXS/DID voice/fax interface FXS port is used to connect directly to phones, fax machines, and key systems.
card.
Generates battery polarity reversal and caller ID. VIC3-2FXS-E/DID
is designated as an “Off-Premise Extension Lite” product offering. This means
that while the module addresses a subset of the off-premise extension
applications, it should be noted that the module is not in full compliance
for off-premise usage.
DID port is used to provide off-premises DID connection from central office.
Serves only incoming calls from the PSTN. Does not support caller ID in DID
mode.
VIC3-4FXS/DID
4-port FXS/DID voice/fax interface card
FXS port is used to connect directly to phones, fax machines, and key systems.
Generates battery polarity reversal and caller ID.
DID port is used to provide off-premises DID connection from central office.
Serves only incoming calls from the PSTN. Does not support caller ID in DID
mode.
VIC2-2FXO
2-port FXO voice/fax interface card
[universal card for all countries]. Also
supports analog Centralized Automated
Message Accounting (CAMA) on any port.
FXO port is used to connect to PBX or key system, or to provide off-premise
connections to PSTN. Supports battery reversal detection and caller ID. These
VICs can be software configured to work in all countries. Also used to connect
to analog CAMA trunk to provide dedicated E-911 service (North America only).
VIC2-4FXO
4-port FXO voice/fax interface card
[universal card for all countries]. Also
supports analog CAMA on any port.
FXO port is used to connect to PBX or key system, or to provide off-premise
connections to PSTN or PTT. Supports battery reversal detection and caller ID.
These VICs can be software configured to work in all countries. Also used to
connect to analog CAMA trunk to provide dedicated E-911 service (North
America only).
VIC3-2E/M
2-port E&M voice/fax interface card
Use to connect to PBX or key system as tie lines.
VIC2-2BRI-NT/TE
2-port BRI voice/fax interface card
(configurable for either network or terminal
side)
Use to connect as network side or user side to PBX or key system as offpremise connections (ISDN voice BRI). Supports Patent Pending flexible L2 and
L3 configurations
VWIC2-1MFT-T1/E1
1-Port T1/E1 Multiflex Trunk Voice/WAN
Interface Card
Used to connect to PBX, PSTN, or WAN using T1/E1 standard interface and
provide channel drop-and-insert capability.
VWIC2-2MFT-T1/E1
2-Port T1/E1 Multiflex Trunk Voice/WAN
Interface Card
Used to connect to PBX, PSTN, or WAN using T1/E1 standard interface and
provide channel drop-and-insert capability.
VWIC2-1MFT-G703
1-Port G.703 Multiflex Trunk Voice/WAN
Interface Card
Used to support unstructured E1 (G.703) and all features of the other Cisco
MFT VWIC2 modules, including drop-and-insert.
VWIC2-2MFT-G703
2-Port G.703 Multiflex Trunk Voice/WAN
Interface Card
Used to support unstructured E1 (G.703) and all features of the other Cisco
MFT VWIC2 modules, including drop-and-insert. Additional flexibility is provided
on the two port module with the capability to configure one port for unstructured
E1 (G.703) while configuring the other for standard framed E1.
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Page 5 of 12
Data Sheet
PVDM2s on a NM-HDV2 module or on the mother board of an ISR router can be shared across multiple IP
Communications High-Density Digital Voice/Fax Network Modules. Please see Table 4 below for a list of PVDM2
modules supported.
PVDM3s equipped on the motherboards of the 2911, 2931, 2951, 3925, 3945 Unified Communications routers
can coexist with the PVDM2s on the NM-HDV2 modules as long as they are not both installed in the same domain.
The motherboard PVDM slots form one domain and each SM slot forms a separate domain. The motherboard
domain can contain either all PVDM2 modules or all PVDM3 modules. An SM domain can only contain PVDM2
modules housed by the NMHDV2 carrier card. If a mix of PVDM2s and PVDM3s are detected on the motherboard
slots, then the PVDM2s will be deactivated, allowing only the PVDM3s to be used actively. If PVDM2s are detected
in service-module slots and PVDM3s are installed on the motherboard, then both will continue to function in their
own domain and coexist.
Table 4.
PVDM2 Packet Fax/Voice DSP Type and Density Supported on the IP Communications High-Density Digital
Voice/Fax Network Module
Module Name
Description
Number of DSPs
Maximum
Channels
in High1
Complexity
Codec
Maximum
Channels
in Medium2
Complexity
Codec
Maximum
Channels in
G.711 codec
PVDM2-8
8-channel Packet Fax/Voice DSP Module
1
4
4
8
PVDM2-16
16-channel Packet Fax/Voice DSP Module
1
6
8
16
PVDM2-32
32-channel Packet Fax/Voice DSP Module
2
12
16
32
PVDM2-48
48-channel Packet Fax/Voice DSP Module
3
18
24
48
PVDM2-64
64-channel Packet Fax/Voice DSP Module
4
24
32
64
The 2900 Series and 3900 Series Integrated Services Routers support Network Modules (with PVDM2s) via an
adapter (part number SM-NM-ADPTR).
Table 5.
Maximum Network Modules Allowed per Platform
Cisco Platform
Maximum Number of Network Modules Allowed
Cisco 2811/2821/2851 Integrated Services Routers
1
Cisco 3825 Integrated Services Router
2
Cisco 3845 Integrated Services Router
4
Cisco 2901/2911/2921/2951 Integrated Services Routers
0/1/1/2
Cisco 3925/3945 Integrated Services Routers
2/4
1
2
High-complexity codecs supported are: G.711, G.726, G.729, G.723.1, G.728, GSM-EFR and Fax Relay.
Medium-complexity codecs supported are: G.711, G.726, G.729a, GSM and Fax Relay
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Page 6 of 12
Data Sheet
Table 6.
IP Communications High-Density Digital Voice/Fax Network Module Feature Summary
Feature
Description and Benefits
IP Telephony Voice Gateway
● Integrates all Cisco IP Communications solutions by providing flexible and reliable connectivity to public
or private switched telephone networks around the world.
● Provides high-density gateway for Cisco IP phones to PSTN or legacy PBX/PABXs. (Private Automatic
Branch Exchange).
● Provides high-density gateway to PSTN for traditional PBX systems, phones, fax machines, and key
communication systems connected to a voice, data, and video infrastructure.
● Interoperable within a Cisco AVVID architecture and Cisco IP Communications solution.
Toll Bypass
● Reduce or eliminate toll charges assessed by long distance and local carriers by transporting voice and fax
traffic across the enterprise intranet, LAN, metropolitan-area network (MAN), or WAN.
● Works with existing phones, fax machines, PBX systems, and key systems.
● Connection trunk: Creates a permanent tie-line replacement structure (digital-to-digital, digital-to-analog, or
analog-to-analog capabilities).
● Interoperates end-to-end with Cisco IP phones, analog phones, fax machine connections, and PBX/PABX
connections to and from other Cisco voice-enabled products.
Voice over Packet Transport
● Voice/Fax over IP: VoIP traffic at Layer 3 can travel over any Layer 1 or Layer 2 media, including ISDN, leased
lines, serial connections, Frame Relay, Ethernet, Token Ring, and Asynchronous Transfer Mode (ATM).
● Voice/Fax over Frame Relay: VoFR is supported using FRF.11 and FRF.12 standards. This solution also uses
features found only in Cisco IOS Software for maintaining voice quality.
● Voice over ATM: VoATM is supported using AAL2 or AAL5 encapsulation. Leverages existing ATM networks
as a direct transport method for voice. VoATM requires ATM interfaces such as T1/E1 ATM, IMA, DS3/E3 or
OC-3, or DSL WICs.
● Compressed Real-Time Protocol (cRTP) offers RTP header compression and packet fragmentation
techniques that allow toll-quality voice and fax transmissions over any WAN connection.
● Call admission control and PSTN fallback: Uses Service Assurance Agent (SAA) to determine latency, delay
and jitter and provide real-time ICPIF calculations before establishing a call across an IP infrastructure. SAA
packets emulate voice packets receiving the same priority as voice throughout the entire network.
● Advanced quality of service (QoS) mechanisms: These configurable Cisco IOS Software features reserve
appropriate bandwidth and prioritize voice and fax traffic to ensure transparent delivery of toll-quality voice and
fax. They include Resource Reservation Protocol (RSVP), Queuing Techniques (such as Low Latency
Queuing), IP Precedence, and DiffServ Code Points.
Call Control Signaling
● Supports H.323 V1/V2/V3/V4, MGCP 0.1/1.0, and SIP call control protocols. Also supports CiscoUCM3.3 using
MGCP or H.323, and Cisco UCME 3.1.
ITU Standard Voice Codecs
● G.711, G.729, G.729a/b, G.723.1, G.726, G.728, iLBC, G.722—These are standards-based compression
technologies allowing transmission of voice across IP, Frame Relay, and ATM. The G.711 standard employs 64
kbps PCM modulation using either u-law or A-law. Other codecs employ lower bit rates.
Telephony Interface Signaling
Support
● Supports the following signaling protocols:
● FXO/FXS loop-start and ground-start signaling
● E&M (wink, immediate, delay)
● Inbound signaling (such as DTMF, MF support)
● T1 and E1 CAS
● T1 and E1 PRI Q.931 user side and network side
● T1 and E1 PRI QSIG
● E1 MelCAS
● E1 R2 CAS
● T1 and E1 Transparent CCS (with Multi-D channel)
● Country-specific signaling
Voice Features
● Conferencing/Transcoding13: Supports up to 50 eight-party G.711 ad-hoc conferencing sessions, or up to 32
eight-party multi-codec (G.711/G.729) ad-hoc conferencing sessions. A maximum of 128 transcoding sessions
between G.729a and G.711 codecs, and 96 transcoding sessions between G.729 and G.711 codecs.
● Echo cancellation: Industry-leading G.168-compliant software echo cancellation provides echo cancellation on
tail circuits up to 64 Mbps.
● Silence suppression, voice activity detection (VAD): Bandwidth is used only when someone is speaking.
During silent periods of a phone call, bandwidth is available for data traffic.
● Comfort noise generation: This feature reassures the phone user that the connection is being maintained,
even when no voice packets are being transmitted.
● Private line automatic ring-down (PLAR): Provides a direct connection to another digital or analog voice port
by lifting a telephone handset on one end. Includes "Trader Turret" PLAR.
● Local/Advanced Voice Busy-Out (LVBO/AVBO): Automatically busies out any desired voice trunk line to a
3
Conferencing/transcoding feature available on the 2800 Series starting with 12.3(8)T4, 3800 Series starting with 12.3(11)T, 2900
and 3900 Series starting with 15.0(1)M.
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Page 7 of 12
Data Sheet
Feature
Description and Benefits
PBX or PSTN when a direct WAN or LAN connection to the router or any part of the network to the destination
port is down.
● Caller ID support: Per-port configurable caller ID (with per call un-blocking) over analog FXS and FXO
interfaces.
● Hunt groups across cards: Calls can be forwarded automatically to the first available line.
● Integrated add/drop multiplexer (drop and insert): Performs add/drop multiplexing for voice within a multiport voice Network Module. Eliminates the requirement, maintenance, support, and expense of using an
external add/drop multiplexer.
● Channel bank: Supports the conversion of analog voice ports into digital voice traffic using DS-0 channels on a
T1 or E1 interface.
● Dial plan mapping: Simplifies configuration and management through automatic mapping of dialed phone
numbers to IP addresses.
● Interactive Voice Response Support (IVR): Provides automated-attendant, voice-mail support, and call
routing based on desired service.
● Hoot and Holler over IP: Delivers superior quality Hoot and Holler multicast voice services and multicast
conferencing over the WAN using existing end-points.
Voice Port Interfaces
● Supports FXS, FXO (includes CAMA), DID, E/M, BRI (S/T), T1, and E1 interfaces.
Voice Port-Specific Features
● FXS and FXO: Provide battery polarity reversal detection and initiation for disconnect supervision and far-end
answer supervision.
● ISDN BRI network side and phantom power: The VIC2-2BRI-NT/TE provides the ability to connect a
PBX/PABX configured as user side directly to the router. Also provides phantom power to accommodate
equipment that requires it.
● Analog CAMA trunk connection: The VIC2-2FXO and VIC2-4FXO provide the ability to connect to analog
CAMA trunks which provide dedicated E-911 services. Each VIC port can be individually configured as an FXO
or a CAMA port via Cisco IOS Software.
● Per port disable: Allows disabling of any single port without affecting any other port on the same VIC or NM.
● LED indicators for voice processing resources and port status.
Fax and Modem
● Fax and modem passthrough: Allows fax and modem traffic to pass through a voice port.
● Fax relay: Provides a more robust protocol for fax transmission over packet networks. Also supports the T.37
and T.38 fax protocols.
Data Features
● Supports serial data WAN access using T1/E1 or fractional T1/E1 network interface.
● N X 64 Kbps or N X 56 Kbps channel group data rates (T1:N=1 to 24, E1:n=1 to 31).
● Supports up to 32 data channel groups with a total bandwidth of up to 2 Mbps.
● Supports integrated data WAN access and DS-0 voice channels on the same T1/E1.
● Dual clocking domain: Supports a second clocking domain for one T1/E1 data only trunk, independent of the
primary clocking domain used by other T1/E1 and BRI ports resident within a single NM-HDV2 module.
High-Performance Flexible
DSP Architecture
● Channel capacity: Supports up to 120 medium-complexity voice channels. See NM specifications below for
further details.
● Flexi-DSP architecture: There is no need to specify codec complexity at configuration. An appropriate codec is
dynamically selected when a call is established, while allocating DSP resources optimally.
● Feature upgrades: The DSP architecture allows for addition of new features through simple code updates.
● DSP sharing: Supports the ability to share DSPs among multiple NM-HDV2 modules within a single Voice
Gateway Router.
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Page 8 of 12
Data Sheet
Additional Features
Cisco IOS Software and Platform Support
●
Fully supported via Cisco IOS Software CLI (call level interface) including device configuration, monitoring,
link status, security, Layer 2 and 3 protocol configuration and management, and call history
●
Supported on all Cisco 2811, 2821, 2851, 2911, 2921, 2951,3825, 3845, 3925 and 3945 Unified
Communications routers
Network Management Support
●
Cisco Voice Manager
●
SNMP protocol compliant
●
Manageable via a MIB browser
●
CiscoView interface for configuration
●
ConfigMaker
●
NetSys supported
Software and Memory Requirements
Table 7.
Cisco IOS Software Version
Product
Cisco 2811, 2821, 2851
Cisco 2911, 2921, 2951
PVDM2-8
● 12.3(8)T4
● IP Plus images and
higher
● 256 MB DRAM
PVDM2-16
● 64 MB Flash
● Cisco IOS Software
Release 15.0(1)M
● “UC Technology”
images
● 1 GB DRAM
NM-HDV2
NM-HDV2-1T1/E1
NM-HDV2-2T1/E1
PVDM2-32
● 256 MB Flash
Cisco 3825, 3845
● 12.3(8)T4
● IP Plus images and
higher
● 256 MB DRAM
● 64 MB Flash
Cisco 3925, 3945
● Cisco IOS Software
Release 15.0(1)M
● “UC Technology”
images
● 1 GB DRAM
● 256 MB Flash
PVDM2-48
PVDM2-64
Please refer to the Cisco IOS Software release notes for determining the minimum flash and DRAM
memory requirements.
Environmental Specifications
●
Operating temperature: 0 to 40°C (32 to 104°F)
●
Storage temperature: -25 to +70°C (-13 to 158°F)
●
Relative humidity: 5 to 85% noncondensing operating; 5 to 95% noncondensing, nonoperating
© 2009-2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 9 of 12
Data Sheet
NM Specifications
Table 8.
Product
NM-HDV2
NM-HDV2-1T1/E1
Description
IP Communications High-Density
Digital Voice/Fax Network Module
Cisco Part Number
800-22166-01
800-22167-01
800-22168-01
FCC Specifications
FCC Class B device
FCC Class B device
FCC Class B device
Spare
NM-HDV2=
NM-HDV2-1T1/E1=
NM-HDV2-2T1/E1
Voice Channel Capacity
● 60 digital voice channels of
medium complexity or
● 4 analog voice channels
IP Communications High-Density
Digital Voice/Fax Network Module
with One Built-in T1/E1 Port
NM-HDV2-2T1/E1
● 90 digital voice channels of
medium complexity or
● 30 digital voice channels
of medium-complexity and
4 analog voice channels
IP Communications High-Density
Digital Voice/Fax Network Module
with Two Built-in T1/E1 Ports
● 120 digital voice channels of
medium complexity or
● 60 digital voice channels
of medium complexity and 4
analog voice channels
Mean Time Between Failures (MTBF)
1,251,736
1,012,136
939,368
VICs/VWICs Supported
Maximum of ONE:
● VIC3-2FXS/DID
Maximum of ONE:
● VIC3-2FXS/DID
Maximum of ONE:
● VIC3-2FXS/DID
PVDM2 Supported
● VIC3-2FXS-E/DID
● VIC3-4FXS/DID
● VIC3-2FXS-E/DID
● VIC3-4FXS/DID
● VIC3-2FXS-E/DID
● VIC3-4FXS/DID
● VIC2-2FXO
● VIC2-4FXO
● VIC2-2FXO
● VIC2-4FXO
● VIC2-2FXO
● VIC2-4FXO
● VIC3-2E/M
● VIC2-2BRI-NT/TE
● VIC3-2E/M
● VIC2-2BRI-NT/TE
● VIC3-2E/M
● VIC2-2BRI-NT/TE
● Any VWIC2-xMFT-xx
● Any VWIC2-xMFT-xx
● Any VWIC2-xMFT-xx
Requires at least one and
maximum of four Packet
Fax/Voice DSP Module for voice
calls:
● PVDM2-8
Requires at least one and
maximum of four Packet
Fax/Voice DSP Module for voice
calls:
● PVDM2-8
Requires at least one and
maximum of four Packet
Fax/Voice DSP Module for
voice calls:
● PVDM2-8
● PVDM2-16
● PVDM2-32
● PVDM2-16
● PVDM2-32
● PVDM2-16
● PVDM2-32
● PVDM2-48
● PVDM2-64
● PVDM2-48
● PVDM2-64
● PVDM2-48
● PVDM2-64
Voice Interface Card Specifications
Please refer to the following datasheet for VIC specifications:
http://www.cisco.com/en/US/partner/products/hw/modules/ps5365/products_data_sheet09186a0080191d41.html
Voice WAN Interface Card Specifications
Please refer to the following “Cisco One and Two Port T1/E1 Multiflex Voice/WAN Interface Cards” datasheet for
VWIC specifications:
http://www.cisco.com/en/US/partner/products/hw/routers/ps259/products_data_sheet09186a0080091b9c.html
Table 9.
Product Number
Description
VWIC2-1MFT-T1/E1
1-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
VWIC2-2MFT-T1/E1
2-Port T1/E1 Multiflex Trunk Voice/WAN Interface Card
VWIC2-1MFT-G703
1-Port G.703 Multiflex Trunk Voice/WAN Interface Card
VWIC2-2MFT-G703
2-Port G.703 Multiflex Trunk Voice/WAN Interface Card
T1 Network Interface
Transmit Bit Rate
1.544 Mbps ± 50 bps/32 PPM
© 2009-2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 10 of 12
Data Sheet
Product Number
Description
Receive Bit Rate
1.544 Mbps ± 50 bps/32 PPM
Line Code
AMI, B8ZS
AMI Ones Density
Enforced for N x 56 Kbps Channels
Framing Format
D4 (SF) and ESF
Output level (LBO)
0, -7.5, or -15 dB
Input Level
+1dB0 down to -24 dB0
DTE Interface (WIC mode)
Fractional Service
DTE Interface (VIC mode)
G.704/Structured
DCE Interface
G.704/Structured
E1 Network Interface
Transmit Bit Rate
2.048 Mbps ±100 bps/50 PPM
Receive Bit Rate
2.048 Mbps ±100 bps/50 PPM
Data Rate
1.984 Mbps (framed mode) Per E1 Port
Clocking
Internal and Loop (recovered from network)
E1 National Bits
Fixed (non-configurable)
Encoding
HDB3
DTE Interface (WIC mode)
Fractional Service
DTE Interface (VIC mode)
G.704/Structured
DCE Interface
G.704/Structured
Homologation
The IP Communications High-Density Digital Voice Network Modules are approved for the countries listed below.
The approvals are for off-premise and on-premise connections, unless stated otherwise. Approval for other countries
is in progress. Please refer to the homologation Website shown below for approval progress for other countries and
the VIC/VWIC cards used in the NM-HDV2:
http://tools.cisco.com/cse/prdapp/jsp/externalsearch.do?action=externalsearchresult&page=EXTERNAL_SEARCH
Table 10.
Country
Specification
● EMC 47CFR15 Subpart B 2002, T1
● Safety IEC60950
United States
Approval
Supported
● Telecom 47 CFR part 68, TIA/EIA 968-A
● EMC CISPR22 or FCC Part 15
● Safety IEC60950
Canada
Supported
● Telecom CS-03
14
European Community (CE) Countries
● EMC EN55022/EN50082/EN61000
● Safety EN60950
Supported
● Telecom TBR4, TBR12 and TBR13
1
CE (European Community) countries: Austria, Belgium, Denmark, Finland, France, Germany, Gibraltar, Greece, Ireland, Italy,
Liechtenstein, Luxembourg, Malta, Monaco, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom
© 2009-2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 11 of 12
Data Sheet
Cisco and Partner Services for the Branch
Services from Cisco and our certified partners can help you transform the branch experience and accelerate
business innovation and growth in the Borderless Network. We have the depth and breadth of expertise to create a
clear, replicable, optimized branch footprint across technologies. Planning and design services align technology with
business goals and can increase the accuracy, speed, and efficiency of deployment. Technical services help
improve operational efficiency, save money, and mitigate risk. Optimization services are designed to continuously
improve performance and help your team succeed with new technologies. For more information, visit
http://www.cisco.com/go/services.
Printed in USA
© 2009-2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
C78-562580-01
09/10
Page 12 of 12