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NM-HDV2-2T1/E1
IP Communications High-Density Digital Voice NM with 2 T1/E1...
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NM-HDV2-2T1/E1 is a high-performance WAN module engineered for reliable T1/E1 connectivity in modern telecommunications networks. It supports dual-channel T1/E1 interfaces operating at 1.544 Mbps and 2.048 Mbps, respectively, ensuring robust voice and data transmission for legacy and contemporary applications.
Designed with a modular form factor for straightforward installation in routers, switches, and servers, NM-HDV2-2T1/E1 provides seamless integration into wide area network (WAN) infrastructures. Its optimized design caters to network environments that require efficient utilization of physical space while upgrading connectivity and expanding capacity in enterprise and service provider networks.
NM-HDV2-2T1/E1 price is $1,542.00, a 55.9% saving from the Cisco list price of $3,500.00. NM-HDV2-2T1/E1 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NM-HDV2-2T1/E1 for additional pricing. Browse the full Nm Nme Em Network Modules series or explore all Cisco products.
In a regional telecom network, a service provider deploys the NM-HDV2-2T1/E1-IP Communications High-Density Digital Voice NM with 2 T1/E1 Cisco Router Network Module on Cisco ASR routers to aggregate up to 120 simultaneous voice calls over T1/E1 trunks. By leveraging built-in transcoding and TDM-to-IP conversion, the provider seamlessly carries legacy PSTN traffic across its MPLS backbone. Outcome: 50% reduction in trunk port capital expenditures, 30% lower operational complexity, and improved SLA adherence through end-to-end QoS and voice packet prioritization.
A Fortune 500 financial services firm replaces aging analog gateways with the NM-HDV2-2T1/E1-IP Communications High-Density Digital Voice NM installed in their Cisco ISR routers. The module terminates multiple T1/E1 lines directly into the contact center’s SIP-based IVR and ACD platforms. Outcome: 40% cost savings on maintenance, 25% faster call setup times, and improved call quality metrics by leveraging built-in echo cancellation, voice buffering, and centralized session management.
A manufacturing enterprise onboards 15 branch plants by deploying NM-HDV2-2T1/E1-IP Communications High-Density Digital Voice NM modules in Cisco ISR routers at each site. They replace disparate analog PBX trunks with standardized T1/E1 voice streams over a dedicated IP VPN. Outcome: Consolidated voice infrastructure driving a 20% drop in long-distance toll charges, simplified network operations through a single Cisco management plane, and accelerated deployment of new site rollouts by 50%.
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| NM-HDV2-2T1/E1 |  EM-HDA-3FXS/4FXO |  NM-HDV2 |  EVM-IPVS-16A |  NM-4T | |
|---|---|---|---|---|---|
| Product Type | Network Module | Telephony Interface Module | Network Module / Network Card | Network Module | Network Module |
| Module Type | WAN | Analog FXS/FXO Module | Ethernet | Ethernet | Ethernet |
| Form Factor | Modular | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 5V | 48V DC | 3.3V | 3.3V | 3.3V |
| Compatibility | Routers, Switches, Servers | Unified Communications Platforms / VoIP Gateways | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Dell / HP | Cisco / Juniper / Arista / Dell / HP |
| Supported Features | Digital Signal Processing, Redundancy | Simultaneous 3 FXS & 4 FXO interfaces, echo cancellation, caller ID detection | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS |
| Product Name | NM-HDV2-2T1/E1 | EM-HDA-3FXS/4FXO | NM-HDV2 High-Definition Network Module | EVM-IPVS-16A | NM-4T Network Module |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Dual T1 support handled voice traffic efficiently.
Stable and scalable voice solution.
Good performance under sustained load.
Clean installation and operation.
Met enterprise voice requirements.
The Cisco NM-HDV2-2T1/E1 is a high-density digital voice network module for Cisco ISR routers, featuring two T1/E1 ports that support up to 48 simultaneous voice, fax, and modem channels.
The NM-HDV2-2T1/E1 is supported on Cisco ISR G2 and newer platforms with an NM slot, including the 4000, 4400, and 7200 series routers.
Each T1/E1 port handles 24 DS0 channels, delivering a total capacity of 48 concurrent digital voice channels on the module.
This module supports CAS (Channel Associated Signaling), ISDN PRI (Q.921/Q.931), MFR2, and TDM for seamless digital voice integration.
Yes, the NM-HDV2-2T1/E1 integrates G.168 echo cancellation on all channels, ensuring clear voice quality in IP communication deployments.
The module measures 1.0 x 6.2 x 11.8 inches, fitting standard Cisco NM slots for compact, high-density digital voice connectivity.
Typical power draw is approximately 8W at idle and up to 17W under maximum load, optimized for efficient operation in Cisco routers.
Power down the router, insert the NM-HDV2-2T1/E1 into an available NM slot, secure the retention screw, power up, and verify with “show controllers t1”.
No additional hardware license is needed; just ensure your router’s IOS image includes the Cisco Unified Communications feature set.
Yes, it interoperates with Cisco Unified Border Element (CUBE) and Cisco Unified Communications Manager for reliable VoIP trunking.
The NM-HDV2-2T1/E1 operates in ambient temperatures from 32°F to 104°F (0°C to 40°C) for standard data-center and branch environments.
Absolutely. It supports direct digital trunking to T1/E1 PBXs via CAS or ISDN PRI signaling for seamless legacy integration.
Refer to Cisco’s ISR installation and configuration documentation under the “Configuring the High-Density Voice NM” chapter for step-by-step instructions.
Cisco provides a 90-day limited hardware warranty; extended SMARTnet support services can be purchased for enhanced coverage and fast RMA.
Use “show controllers t1/e1” and “debug isdn q921/q931” to verify link status, framing, and signaling; check cable terminations and Cisco support forums.
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