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  • NM-1T3/E3=
  • NM-1T3/E3=
Cisco Switching Module


Out of Stock
Ships in 2-3 business days

Cisco Switching Module MFG: Cisco
UPC: 746320697710

Tech Specs

The Cisco T3/E3 Network Module provides high-speed WAN access for the Cisco 2600, 3600, and 3700 series routers. T3/E3 WAN access enables the network to carry high volumes of data and rich multimedia content, while providing low latency for voice over IP (VoIP).

Manufacturer Cisco Systems, Inc
Manufacturer Part Number NM-1T3/E3=
Manufacturer Website Address
Brand Name Cisco
Product Name Switching Module
Product Type Switching Module
Technical Information:
Application/UsageSwitching Network
Interfaces/Ports Details1 x BNC Female T3/E3 Network Full-duplex WAN
Media & Performance:
Media Type SupportedCoaxial
Network TechnologyT3/E3
Maximum Data Transfer Rate44.74 Mbit/s
Physical Characteristics:
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:
  • HDLC
  • PPP
  • Frame Relay
  • ATM Data Exchange Interface (ATM-DXI)
CompatibilitySupported 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
Limited Warranty90 Day

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Atlanta Network Technologies, Inc is not responsible for typographical or photographical errors.
Prices and specifications are subject to change without notice.