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1 x T1

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Additional Information

Manufacturer CISCO
Manufacturer Part Number NM-HDV-1T1-24
SKU GROUP-153092
Marketing Information This voice/fax network module provides a single T1 connection and support for 24 channels of medium complexity voice compression using any of the following VoCoders: G.711, G.729a/b, G.726, and fax. This module can also be used to provide 12 channels of high and/or medium complexity voice compression using any of all of the following VoCoders: G.711, G.729, G.729a/b, G.726, G.728, G.723.1, and fax. The NM-HDV-1T1-24 consists of a network module, voice interface card, and digital signal processors.
Description 1 x T1
Module Type EM Network Modules
Application/Usage Data Networking
  • Supported Platforms & Minimum IOS Versions:
  • 3745 - 12.2(8)T
  • 3725 - 12.2(8)T
  • 3660 series - 12.0(5)XK
  • 3640 - 12.0(5)XK
  • 3620 - 12.0(5)XK
  • 2691 - 12.2(8)T1
  • 2650 - 12.1(3)T
  • 2600XM Series - 12.1(14) or 12.2(8)T1
  • 2600 series - 12.0(5)XK
  • 1720 - Not Supported
  • 1600 series - Not Supported
Product Name Voice/Fax Network Module
Interfaces/Ports Details
  • 1 x RJ-48 Connector
  • 24 x Channel T1
Limited Warranty 90
Maximum Data Transfer Rate 1.54 Mbit/s
Alt Part No NMHDV1T124
Product Type Network Module
Additional Information
  • Modular Router Solutions:
  • Voice & Fax Integration
  • VPN & Firewall Solutions
  • Flexibility:
  • Programmable digital signal processors can support G.711, G.723, G.726, G.728, G.729 and G.729a/b for customized solutions to meet the need for high voice quality and bandwidth efficiency
  • Packet Voice Digital Signal Processor Modules (PVDM-12=), provide the ability to increase the voice processing capabilities within this single network module
  • Modular voice processing on the packet voice trunk Network Module, the Cisco 2600 and 3600 provide the power to support additional office requirements such as routing, dial concentration, firewall and VPN
  • Line Code: AMI, B8ZS
  • Clock Support: Pull-in range +/-64 PPM, Pass-through +/-32 PPM
  • AMI Ones Density: Enforced for N x 56kbps channels
  • Framing Format: D4 (SF) and ESF
  • Output level (LBO): 0, -7.5, or -15 dB
  • Input Level: +1dB0 down to -24 dB0
  • Line Frequency: 1.544 Mbps +/- 75 bps/32PPM
  • DTE/DCE Interface (VIC mode): G.704/structured
  • DSU/CSU:
  • Selectable DSX-1 cable length in increments from 0 to 655 feet in DSU mode
  • Selectable DS1 CSU line build-out: 0, -7.5, -15, and -22.5 dB
  • Selectable DS1 CSU receiver gain: 26 or 36 dB
  • Single-port, 24 channel T1 voice/fax network module:
  • Supports 24 channels of medium complexity VoCoders: G.729a/b, G.726, G.711, and fax or 12 channels of G.726, G.729, G.723.1, G.728, G.729a/b, G.711, and fax). This product can be upgraded to an NM-HDV-1T1-24E simply by adding two additional PVDM-12= modules
  • Comments:
  • Can be field upgraded by adding one or two additional DSP modules (PVDM-12=)
Shipping Weight (Approximate) 2.16 lb
SKU UNSPSC 43222600
SKU UPC 7.46E+11


1 x T1

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