• Cisco 2851 - 12.3(8)T4
• Cisco 2821 - 12.3(8)T4
• Cisco 2811 - 12.3(8)T4
• Cisco 3745 - 12.3(7)T
• Cisco 3845 - 12.3(11)T
• Cisco 3825 - 12.3(11)T
• Cisco 3725 - 12.3(7)T
• Cisco 2691 - 12.3(7)T
• Cisco 2600XM Series - 12.3(7)T

IP Communications High-Density Digital Network Module provide enterprise managed service provider and service provider 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.

• Refurbished
• No Returns
• 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