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Cisco 1-port Clear-channel T3/E3 Network Module - NM-1T3/E3=

This flexible network module allows the customer to switch between T3 and E3 applications with a single Cisco IOS command.   Learn more about the product
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eCOST Part#: 105240
Mfr Part#: NM-1T3/E3=
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Cisco's Packet-over-T3/E3 network module for the Cisco 2600, 2691, 2800, 3600, 3700 and 3800 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 SP's 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.

Product Features and 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

Product specifications:

Compatibility - Supported Platforms & Minimum IOS Versions:
– 3745 - 12.2(11)YT
– 3725 - 12.2(11)YT
– 3660 series - 12.2(11)YT
– 3640 - Not Available
– 3620 - Not Available
– 2691 - 12.2(11)YT
– 2650 - Not Available
– 2600XM Series - 12.2(11)YT
– 2600 series - Not Available
– 1720 - Not Available
– 1600 series - Not Available

Interfaces/Ports Details
1 x BNC Female T3/E3 Full-duplex WAN

Product Type
Switching Module

Management Simplified management:
– Eliminates the need for two separate monitoring tools

Certifications & Standards Compliance:
– DS3 physical layer:
- ANSI T1.102, T1.107

– E3 physical layer:
- TBR24
- ITU-T G.703 & G.823
- ACA TS016

– 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)

– 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

– T3/E3 MIB (RFC 1407)

Status Indicators
– CD
– LP
– EN
– Alarm

Connectivity Media
75-ohm Coaxial

Data Transfer Rate
44.736Mbps T3 Half/Full-duplex
34.368Mbps E3 Half/Full-duplex

10% to 90% Non-condensing Relative Humidity



Frame Relay

32 F (0 C) to 104 F (40 C) Operating
-4 F (-20 C) to 149 F (65 C) Storage

Form Factor
Plug-in Module

Additional Information
– DSX3 level interface with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX)
– 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)
– 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)
– Physical space savings - Eliminates the need for external DSU device, saving valuable rack space
– Software- configurable T3/E3 - Provides the flexibility to deploy a single module worldwide

Serial Encapsulations:
– Frame Relay
– ATM Data Exchange Interface (ATM-DXI)

System Requirements
– Single-wide network module, no slot restrictions

Minimum Cisco IOS Software Requirements:
– Cisco IOS Software Version 12.2(11)YT
Device Type Expansion module
Form Factor Plug-in module
Connectivity Technology Wired
Data Link Protocol HDLC, Frame Relay, PPP
Data Transfer Rate 44.736 Mbps
Network / Transport Protocol IPSec
Line Rate T-3/E-3
Line Coding Format HDB3, B3ZS
Status Indicators Active, carrier detect, alarm
Features NAT support, Intrusion Detection System (IDS), integrated CSU/DSU, Quality of Service (QoS)
Compliant Standards ANSI T1.102, ANSI T1.107, G.703
Expansion / Connectivity
Interfaces 1 x T3/E3 - BNC x 2
Compatible Slots 1 x expansion slot
Compliant Standards FCC Class A certified, TUV GS, EN 60950, EN 61000-3-2, IEC 61000-4-11, IEC950, VCCI Class A ITE, EN 61000-3-3, EN55024, CSA 22.2 No. 950, EN55022 Class A, EN50082-1, AS/NZS 3260, EN 61000-4-4, EN 61000-4-2, EN 61000-4-3, EN 61000-4-6, AS/NZ 3548 Class A, ICES-003 Class A, EN 61000-4-5, UL 1950 Third Edition, EN 61000-6-2, EN 61000-4-11, FCC CFR47 Part 15, EN300-386
Dimensions & Weight
Width 7.1 in
Depth 7.2 in
Height 1.5 in
Environmental Parameters
Min Operating Temperature 32 °F
Max Operating Temperature 104 °F
Humidity Range Operating 10 - 90% (non-condensing)
Compatibility Information
Designed For Cisco 2801, 2801 Unified Communications Bundle, 2801 Unified Communications Bundle with Advanced Security, 2811, 2811 Terminal Server Bundle, 2811 Unified Communications Bundle, 2811 Unified Communications Bundle with Advanced Security, 2811 WAN Application Acceleration Bundle, 2821, 2821 Branch Office in a Box Bundle, 2821 Secure WAN Optimization Bundle, 2821 Unified Communications Bundle, 2821 Unified Communications Bundle with Advanced Security, 2821 WAN Application Acceleration Bundle, 2821 WAN Optimization Bundle, 2851, 2851 Secure WAN Optimization Bundle, 2851 Unified Communications Bundle, 2851 Unified Communications Bundle with Advanced Security, 2851 WAN Application Acceleration Bundle, 2851 WAN Optimization Bundle, 2951, 2951 Secure WAAS Bundle, 2951 SRE Bundle, 2951 UCSE Bundle, 2951 Voice Security and CUBE Bundle, 2951 WAAS Bundle, 3825, 3825 Branch Office in a Box Bundle, 3825 ISR IP Video Surveillance Bundle, 3825 Secure WAN Optimization Bundle, 3825 SRST Voice Upgrades for HSEC Bundle, 3825 Unified Communications Bundle, 3825 Unified Communications Bundle with Advanced Security, 3825 Video Encoding Bundle, 3825 WAN Application Acceleration Bundle, 3825 WAN Optimization Bundle, 3845, 3845 Branch Office in a Box Bundle, 3845 ISR IP Video Surveillance Bundle, 3845 Unified Communications Bundle with Advanced Security, 3845 Video Encoding Bundle, 3845 WAN Application Acceleration Bundle, 3845 WAN Optimization Bundle, 3925, 3925 PSRE Bundle, 3925 SRE Bundle, 3925 Voice Security and CUBE Bundle, 3925 WAAS Bundle, 3925E, 3925E Security Bundle, 3925E SRE Bundle, 3925E Voice Bundle, 3925E Voice Security and CUBE Bundle, 3925E Voice Security Bundle, 3945, 3945 PSRE Bundle, 3945 SRE Bundle, 3945 Voice Security and CUBE Bundle, 3945 Voice Security Bundle, 3945 WAAS Express Bundle, 3945E, 3945E Security Bundle, 3945E SRE Bundle, 3945E Voice Bundle, 3945E Voice Security and CUBE Bundle, 3945E Voice Security Bundle
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Cisco 1-port Clear-channel T3/E3 Network Module (NM-1T3/E3= )

This flexible network module allows the customer to switch between T3 and E3 applications with a single Cisco IOS command.

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