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NM-HDV2-1T1/E1
- Description:
- IP Communications High-Density Digital Voice NM with 1 T1/E1 Cisco Router Network Module
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NM-HDV2-1T1/E1
IP Communications High-Density Digital Voice NM wi...
$2,740.00
$1,204.00
30 in Global Warehouse
$1,204.00
56% off
TRUSTED, TRIED, PROVEN
NM-HDV2-1T1/E1 Overview
NM-HDV2-1T1/E1 is a WAN module designed specifically to provide a T1/E1 interface for legacy telecom and digital voice network applications. This module supports the standard data rates of 1.544 Mbps for T1 and 2.048 Mbps for E1, and it features an RJ-48 connector for reliable connectivity in digital transmission systems.
Engineered in a modular form factor, NM-HDV2-1T1/E1 is ideal for installation in chassis-based routers and digital switching equipment, enabling service providers and enterprises to integrate voice and data services seamlessly. Its robust design and focused feature set make it suitable for upgrading legacy systems and expanding network connectivity where T1/E1 circuits are required.
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NM-HDV2-1T1/E1 Specifications
| Product Type | Network Module |
| Module Type | WAN |
| Data Rate | 1.544 Mbps / 2.048 Mbps |
| Connector Type | RJ-48 |
| Supported Protocols | N/A |
| Form Factor | Modular |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | N/A |
| Max Speed | N/A |
| Supported Features | N/A |
| Power Consumption | N/A |
| Interface Ports | N/A |
| Expansion Slots | NIM |
| Product Name | NM-HDV2-1T1/E1 |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
NM-HDV2-1T1/E1 Use Case
Legacy T1/E1 Voice Migration for Remote Branch Offices
A nationwide retail chain operating dozens of remote stores replaces standalone T1/E1 voice routers with Cisco ISR 4000 series equipped with the NM-HDV2-1T1/E1-IP High-Density Digital Voice Network Module. The module consolidates up to 24 T1/E1 voice channels into IP, enabling unified voice/data transport over a single MPLS link. Benefit: reduces site equipment footprint by 50%, cuts monthly WAN costs by 30%, and accelerates feature rollout via centralized Cisco DNA Center management.
Service Provider Central Office Voice Aggregation
A tier-2 telecom provider deploys the Cisco NM-HDV2-1T1/E1-IP High-Density Digital Voice NM on ASR 1000 routers in its central office to aggregate hundreds of legacy T1/E1 circuits into an IP backhaul cloud. Advanced DSP resources handle G.711/G.729 transcoding, echo cancellation, and CAS/PRI signaling in hardware. Benefit: achieves 40% higher port density per rack unit, accelerates new revenue streams with on-demand voice trunk provisioning, and delivers carrier-grade MOS >4.0 voice quality.
Carrier-Grade Voice Failover and Resiliency
A multinational bank implements dual Cisco 4000 series routers with NM-HDV2-1T1/E1-IP High-Density Digital Voice Network Modules at each data center for its mission-critical trading floors. Leveraging Cisco HSRP and VRRP, active T1/E1 voice sessions seamlessly fail over to backup links upon link degradation. Benefit: ensures 99.999% voice uptime for compliance with financial SLAs, eliminates revenue impact from downtime, and maintains seamless trader communication under any network condition.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco Routers | Routers / Switches / Servers | N/A | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP |
| Connector Type | SC Duplex | RJ-45 | RJ-48 | SFP+ | SFP28 |
| Data Rate | 100Mbps | 10G | 1.544 Mbps / 2.048 Mbps | 10G | 10Gbps |
| Depth | N/A | N/A | N/A | 4.0 inches | 6.0 inches |
| Expansion Slots | N/A | N/A | NIM | PCIe | N/A |
| Form Factor | Modular | PCIe | Modular | PCIe | PCIe |
| Height | N/A | N/A | N/A | 0.5 inches | 1.0 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Ethernet | Ethernet | N/A | Ethernet, SFP+ | Ethernet |
| Max Speed | 100Mbps | 10Gbps | N/A | 10Gbps | 10Gbps |
| Module Type | Ethernet (Fast Ethernet Fiber) | Ethernet | WAN | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 4W | N/A | N/A | 15W | 15W |
| Product Name | NM-1FE-FX-V2 | GE-DCARD-ESW= | NM-HDV2-1T1/E1 | NM-1A-T3/E3 High-Performance 10G Ethernet Module | NME-VMSS-HP16 |
| Product Type | Network Module | Network Card | Network Module | Network Module / Network Card | Network Module |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation, Jumbo Frames | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | N/A | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Supported Protocols | TCP/IP | TCP/IP | N/A | TCP/IP, iSCSI | TCP/IP, iSCSI |
| Weight | N/A | N/A | N/A | 1.2 lbs | 0.5 lbs |
| Width | N/A | N/A | N/A | 3.0 inches | 4.0 inches |
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Questions & Answers
Q
What is the Cisco NM-HDV2-1T1/E1 module?
A
The Cisco NM-HDV2-1T1/E1 is a high-density digital voice network module providing one T1/E1 port for voice and data on supported Cisco 2800 and 3800 Series routers.
Q
Which routers are compatible with the NM-HDV2-1T1/E1?
A
This module is compatible with Cisco 2800 Series, 2900 Series, 3800 Series, and 3900 Series Integrated Services Routers that feature a Network Module slot.
Q
How many voice channels does the NM-HDV2-1T1/E1 support?
A
It supports up to 30 voice channels on an E1 interface or 24 voice channels on a T1 interface, enabling high-density digital voice deployments.
Q
Does the module support SIP and H.323 protocols?
A
Yes, the NM-HDV2-1T1/E1 supports both SIP and H.323 voice-over-IP protocols with Cisco IOS voice feature sets installed.
Q
What licensing is required for digital voice services?
A
You need the Cisco Unified Communications licensing—either UC Advantage or UC Essential—on the parent router to activate digital voice ports.
Q
How is the NM-HDV2-1T1/E1 physically installed?
A
Installation involves sliding the module into an available Network Module slot on a compatible router and securing it with the provided captive screws.
Q
What power consumption should I expect?
A
Typical power consumption is approximately 10W under normal voice load, depending on codec usage and number of active channels.
Q
Can I mix T1 and E1 configurations on this module?
A
No, the NM-HDV2-1T1/E1 is factory-configured for either T1 or E1; you must select the correct SKU for your region’s digital circuit.
Q
What voice codecs are supported?
A
Supported codecs include G.711 μ-law/a-law, G.729a/b, G.723.1, and G.726, delivering flexible bandwidth and quality trade-offs.
Q
Does the module support fax and modem passthrough?
A
Yes, it supports fax relay and modem passthrough with T.38 and fax relay in Cisco IOS, ensuring reliable T.38 fax over IP.
Q
How many concurrent calls can it handle?
A
It can handle up to 30 concurrent calls on E1 or 24 concurrent calls on T1 when using standard voice codecs.
Q
Is QoS supported on the NM-HDV2-1T1/E1?
A
Yes, the module supports Cisco Quality of Service features, including traffic classification, marking, policing, and queuing for voice prioritization.
Q
What environmental conditions are required?
A
Operating conditions are 0°C to 40°C with 5%–90% non-condensing humidity as specified in the Cisco environmental data sheet.
Q
What warranties and support are offered?
A
Cisco provides a limited lifetime warranty on NM modules and offers optional Smart Net Total Care support for accelerated replacement and updates.
Q
How do I configure the T1/E1 interface?
A
Use Cisco IOS CLI commands under interface serial to set framing (framing esf/ccs), clock rate, linecode (ami/b8zs/hdb3), and channel-group settings.
Q
Where can I purchase the NM-HDV2-1T1/E1?
A
You can purchase through authorized Cisco partners, resellers, or the Cisco online store; pricing varies by region and support package.
