Cisco NM-1T3/E3 Module
Cisco NM-1T3/E3 Module

Cisco NM-1T3/E3 Module

Condition: Refurbished
0 reviews
Stock Status:Out of Stock
Brand:
Product Code: NM-1T3/E3-RF
  • End-of-Sale and End-of-Life Information (EOL/EOS)
  • Release Date:
  • End-of-Sale Date:
  • End-of-Support Date:
2013-08-02 :Updated

The Cisco T3/E3 Network Module is designed to provide high-speed WAN connectivity for a wide range of Cisco routers, including the 2600, 2800, 3600, 3700, and 3800 series, as well as the 2951 and 3900 series Integrated Services Routers. By offering a robust solution for clear-channel T3 or E3 connections, this module caters to the evolving bandwidth requirements of both service providers and enterprise customers.

This module stands out as the first software-configurable T3/E3 product from Cisco, allowing users to switch between T3 and E3 applications using a simple Cisco IOS command. This flexibility not only simplifies inventory management by allowing a single product to be deployed internationally but also protects customer investment by eliminating the need for external data service unit (DSU) equipment.

Product overview

The core component of this offering is the NM-1T3/E3 network module, which integrates a line interface unit (LIU) DSU directly into the router. This integration significantly reduces provisioning costs, simplifies line management, and saves valuable rack space by removing the requirement for external DSU hardware. The module supports full-duplex communications at T3 rates of 44.736 MHz and E3 rates of 34.368 MHz.

To ensure broad compatibility, the module supports proprietary subrate and scrambling features from various third-party DSU vendors, such as Digital Link, Larscom, and ADC Kentrox. It is designed to handle advanced voice, video, and data applications while supporting essential Cisco IOS services like QoS, IPSec, NAT, and NetFlow. The module is physically compact and features BNC coaxial connectors for reliable data transmission, along with LED indicators for real-time status monitoring.

Features and benefits

  • Software-Configurable Flexibility: Enables seamless switching between T3 and E3 modes via software, facilitating global deployment with a single hardware unit.
  • Integrated DSU: Eliminates the need for external DSU devices, which reduces hardware costs, simplifies management, and optimizes rack space.
  • Broad Interoperability: Supports various third-party DSU vendor algorithms and scrambling features, preventing vendor lock-in.
  • Comprehensive Management: Includes advanced monitoring tools such as bit error rate testing (BERT), Management Information Bases (MIBs), and extensive alarm detection (e.g., AIS, OOF, and FERF).
  • Protocol Support: Compatible with standard serial encapsulation protocols including Frame Relay, Point-to-Point Protocol (PPP), and High-Level Data Link Control (HDLC).
  • Robust Error Handling: Features 16-bit and 32-bit cyclic redundancy check (CRC) capabilities and maintains a 24-hour history of error statistics for improved troubleshooting.
  • Advanced Application Support: Fully compatible with critical network services like NetFlow, NBAR, Firewall (FW), and Intrusion Detection Systems (IDS).
2013-08-02 :Updated
The Cisco T3/E3 Network Module provides high-speed WAN access for the Cisco 2600, 2800, 3600, 3700, 3800 Series routers, as well as the Cisco 2951, and 3900 Series Integrated Services Routers. The NM-1T3/E3 network module offers both Service Providers and Enterprise customer's unprecedented flexibility in provisioning clear-channel T3 or E3 connections.

Figure 1. Cisco T3/E3 Network Module

Cisco's Packet-over-T3/E3 network module for the Cisco Integrated Services Routers series offers the first software-configurable T3/E3 product from Cisco. This flexible network module allows the customer to switch between T3 and E3 applications with a single Cisco IOS command. This feature provides customers increased flexibility and investment protection by allowing a Cisco Partner, service provider or enterprise customer to stock only a single product that can be deployed internationally.
The increased demand for bandwidth over the WAN and more attractive pricing of T3/E3 links by SPs has led to steady growth in T3/E3 deployments around the world. The Packet-over T3/E3 network module (part number NM-1T3/E3) eliminates the need for an external data service unit (DSU), reduces provisioning costs, and provides highly manageable T3/E3 line termination. The module provides an integrated line interface unit (LIU) DSU that allows T3 or E3 lines to be directly terminated on a Cisco router, eliminating the need for external DSU equipment. This simplifies the T3/E3 line management, reduces provisioning cost, and frees up valuable rack space.
The Cisco T3/E3 network modules provide support for the proprietary subrate and scrambling features of T3 DSU vendors such as Digital Link, Larscom, and ADC Kentrox. Subrate support in the Cisco T3/E3 Network Module maximizes the utility of these products in service provider environments By simultaneously supporting interoperability with a wide range of third-party DSU vendors, this network module offers the flexibility to support installed equipment without locking customers into a proprietary solution.
The Cisco T3/E3 Network Module provides direct connectivity to a T3 line for full-duplex communications at the T3 rate of 44.736 MHz and full-duplex E3 communications at 34.368 MHz. Each T3 or E3 port consists of a pair of 75-ohm BNC coaxial connectors (Type RG-59), one for transmit data and one for receive data, along with six LED indicators for line status. The Cisco T3/E3 Network Module is supported in all Cisco IOS feature sets, and there are no additional memory requirements.

Key Benefits

The combination of T3 and E3 options in a single network module provides the following key customer benefits:

• Physical space savings: Eliminates the need for external DSU device, saving valuable rack space

• Simplified management: Eliminates the need for two separate monitoring tools

• Software-configurable T3/E3: Provides the flexibility to deploy a single module worldwide

Key Features

• One-port T3 with DSU or E3 with DSU network module

• T3/E3-specific features for monitoring, bit error rate tester (BERT), Management Information Bases (MIBs), alarms, and more

• Ability to independently or simultaneously enable scrambling and subrate in each DSU mode; support for the following DSU vendors' algorithms: Digital Link, Kentrox, Larscom, Verilink, Adtran.

• Support for the serial encapsulation protocols: Frame Relay, Point-to-Point Protocol (PPP), High-Level Data Link Control (HDLC)

• 16-bit cyclic redundancy check (CRC)

Key Management Features

• Line and payload loopback capabilities

• DS3 remote-line loopback (via Far End Alarm and Control [FEAC] codes per American National Standards Institute [ANSI] T1.107a)

• Response to embedded loopback commands

• Insertion of loopback commands into transmitted signal

• Programmable pseudorandom pattern up to 32 bits long, including 223, 220, 215, 1s, 0s, alt-0-1

• 32-bit error count and bit-count registers

• Alarm detection-Alarm indication signal (AIS), remote alarm, far-end block error (FEBE), out of frame (OOF)

• Onboard processor for Maintenance Data Link (MDL)

T3/E3 Applications and Positioning

The Cisco T3/E3 Network Module provides the performance requirements to deploy advanced, voice, video and data applications over the WAN and supports key IOS features and services such as QoS, NBAR, IPSec, FW, IDS, NAT and NetFlow. The Cisco 3945E, for instance, is the highest-performing platform for the branch office and is recommended for deploying concurrent services at full T3/E3 line rates. See Table 1 below for performance recommendation for positioning of the NM-1T3/E3 in the branch office.

Table 1. Cisco T3/E3 Network Module Branch Office Positioning and Platform Support Matrix

 

Supported Platform

Recommended Type of Service

Maximum T3/E3 Supported

Minimum Cisco IOS Software Version (IP Base Feature Set or Above)

Cisco 2650 and 2651XM

Subrate T3/E3

1

12.2(15)T

Cisco 2691

Subrate T3/E3

1

12.2(15)T

Cisco 2800

Subrate T3/E3 with concurrent services

1

12.3(8)T

Cisco 2951

Full rate T3/E3 with concurrent services

1

15.0(1)M

Cisco 3661 and 3662

Sub and full-rate T3/E3 with limited services

1

12.2(15)T

Cisco 3725/3745

Full-rate T3/E3 with no services

1

12.2(15)T

Cisco 3825

Full rate T3/E3 with no services

1

12.3(8)T

Cisco 3845

Full-rate T3/E3 with concurrent services

2

12.3(8)T

Cisco 3925/3925E*

Full-rate T3/E3 with concurrent services

1

15.0(1)M

Cisco 3945/3945E*

Full-rate T3/E3 with concurrent services

2

15.0(1)M

Note: Support for the NM-1T3/E3 network module in the 3925, 3925E and 3945, and 3945E will be via the network module adapter card (SM-NM-ADPTR).

Figure 2. Typical Cisco T3/E3 Network Module Deployments

Specifications

Table 2 lists the product number and description for the Cisco T3/E3 Network Module.

Table 2. Product Name and Description

 

Product Number

Description

NM-1T3/E3

One-port clear-channel T3/E3 network module

Hardware Specifications

DS3/E3 Specifications

• DSX3 level interface with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX)

• Full-duplex connectivity at DS3 rate (44.736 MHz)

• Full-duplex connectivity at E3 rate (34.368 MHz)

• Scrambling and subrate support of major DSU vendors

• Line build-out-Programmable for up to 450 feet of 734A or equivalent coaxial cable or up to 225 feet for 728A or equivalent coaxial cable

• C-bit, or M23 framing for T3, bypass and G.751 framing for E3 (software selectable)

• Binary 3-zero substitution (B3ZS) (T3) or high-density bipolar with three zeros (HDB3) (E3) line coding

• Support for 16- and 32-bit CRC (16-bit default)

• DS3 FEAC channel support

• Twenty-four-hour history maintained for error statistics and failure counts

• DS3 alarm and event detection (once per second polling)

• Alarm indication signal (AIS)

• Out of frame (OOF)

• Line code violation (LCV)

• Excessive zeros (EXZ)

• Far-end receive failure (FERF)

Table 3. LED Port Indicators and Status

 

LED Indicator

Color

Active State Description

CD

Green

Loopback mode on

LP

Yellow

Port is receiving AIS

AIS

Yellow

Port is receiving FERF signal

FERF

Yellow

Network module is enabled

EN

Yellow

Port is receiving OOF errors

Alarm

Yellow

Loopback mode on

Serial Encapsulations

• HDLC

• PPP

• Frame Relay

Physical Specifications

• Single-wide network module, no slot restrictions

• Dimensions (H x W x D) 1.55 x 7.10 x 7.2 inches (3.9 x 18.0 x 18.3 centimeters)

Environmental Specifications

• Operating temperature: 32 to 104°F (0 to 40°C)

• Storage temperature: -4 to 149°F (-20 to 65°C)

• Relative humidity: 10 to 90%, non condensing

Certification Compliance

DS3 Physical Layer

• ANSI T1.102, T1.107

E3 Physical Layer

• TBR24

• ITU-T G.703 & G.823

• ACA TS016

Safety

• United States (UL1950 3rd Edition/CSA C22.2, No.950)

• Canada (C1950)

• UK (BS6301, EN60950, EN41003)

• Germany (TUV GS)

• France (EN60950, EN41003, NFC98020)

• AS/NZS 3260 (Australia/New Zealand)

• EN60950/EN41003 (Europe)

• IEC 950 (national deviations)

EMC

• 47 CFR 15: 2001 Class A (FCC)

• ICES003 Class A

• EN55022 Class A: 1998

• EN300386: 2001

• EN55024:1998, EN50082-1:1997 and EN61000-6-2: 1999 including:

– ESD: EN61000-4-2

– Radiated Immunity: EN61000-4-3

– Burst Transients: EN61000-4-4

– Surges: EN61000-4-5

– Injected RF: EN61000-4-6

– Dips + Sags: EN61000-4-11

• EN61000-3-2: 1995

• EN61000-3-3: 1995

• AS/NZS 3548 Class A

• VCCI V-3/2000.04 Class A

Standards

• T3/E3 MIB (RFC 1407)

Ask Cisco
Expand the window to see more details and enjoy a clearer chat!
 
 
 

Results generated by AI. Before using results, verify accuracy and completeness.

 
Model NM-1T3/E3-RF
Category Cisco 2600 Series Products
Subcategory Cisco 2600 Series Supported Network Modules
Description 1pt T3/E3 Network Module REMANUFACTURED
Price 5,610.00 USD
Last Update 2019-02-24

Be the first to write a review for this product.

Write a review

Please login or register to review