Cisco IP Communications High-Density Digital Voice/Fax Network Module - 2 x T1/E1 - 1 x VIC/VWIC
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Wired Networking
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General Information

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.

This Module 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. Must be used with up to four PVDM2 Packet Fax/Voice DSP modules.

Technical Information
Application/Usage:Data Networking

Interfaces/Ports:2 x T1/E1 WAN
Interfaces/Ports Details:2 x T1/E1 WAN

Media & Performance
Data Transfer Rate:1.54 Mbps T1
Data Transfer Rate:2.05 Mbps E1

I/O Expansions
Expansion Slots:1 x VIC/VWIC
Daughter Cards:No

Management & Protocols
  • Cisco Voice Manager
  • SNMP protocol compliant
  • Manageable via a MIB browser
  • CiscoView interface for configuration
  • ConfigMaker
  • NetSys supported

Status Indicators:
  • AL
  • LP
  • CD
  • EN
  • PVDM 0
  • PVDM 1
  • PVDM 2
  • PVDM 3

Environmental Conditions
Temperature:32°F (0°C) to 104°F (40°C) Operating
Temperature:-13°F (-25°C) to 158°F (70°C) Storage
Humidity:5% to 85% Non-condensing Relative Humidity Operating
Humidity:5% to 95% Non-condensing Relative Humidity Non-operating

Additional Information:
  • Network module contain four 80-pin SIMM sockets for PVDM2s
  • Toll Bypass Support
  • Telephony Interface Signaling Support
  • Cisco SRST maintains basic telephony services at the branch office even if Wan goes down
  • NM-HDV2-2T1/E1 with VIC2-4FXS/DID in VIC/VWIC slot. Enables FXS connectivity to analog phones/fax machines and 2 T1 digital trunk access the PSTN and WAN access.
  • This Module Requires at least one and maximum of four Packet Fax/Voice DSP Module for voice calls
  • Support for 4 to 120 channels with the new PVDM2 and featuring the latest digital signal processing technology
  • The module is Interoperable with the full range of Cisco IP Communications solutions

T1 Network Interface:

  • 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:

  • 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
System Requirements:

Software and Memory Requirements:

  • Cisco 2600XM:
  • IP Plus images and higher
  • 64 MB DRAM
  • 32 MB Flash
  • Cisco 2691:
  • IP Plus images and higher
  • 128 MB DRAM
  • 32 MB Flash
  • Cisco 3700:
  • IP Plus images and higher
  • 128 MB DRAM
  • 32 MB Flash

Supported Platforms & Minimum IOS Versions:

  • 3845 - 12.3(11)T
  • 3825 - 12.3(11)T
  • 3745 - 12.3(7)T
  • 3725 - 12.3(7)T
  • 2691 - 12.3(7)T
  • 2600XM Series - 12.3(7)T

Supported Platforms:

  • 3845
  • 3825
  • 3745
  • 3725
  • 2691
  • 2600XM Series
Certifications & Standards:
  • FCC Class B device
  • EMC 47CFR15 Subpart B 2002, T1
  • Safety IEC60950
  • Telecom 47 CFR part 68, TIA/EIA 968-A

Limited Warranty:90

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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

  • UPC: 746320832128 
  • Mfr's Part #: NM-HDV2-2T1/E1=