New Cisco SM-X-1T3/E3 One-port clear-channel T3/E3 Service Module

Condition: New
Brand: Cisco
MPN: SM-X-1T3/E3
Model: SM-X-1T3/E3

$ 3,900.00

Cisco SM-X-1T3/E3 Enhanced Service Module

The Cisco SM-X-1T3/E3 1-port T3/E3 enhanced service module (SM-X) is a software-configurable T3/E3 product for Second Generation Integrated Services Routers (ISR G2) and the Cisco 4451-X Integrated Services Router. This flexible enhanced service module enables you to switch between T3 and E3 applications with a single Cisco IOS command.

The SM-X-1T3/E3 enhanced service module supports a single-port T3 or E3 with an integrated channel service unit (CSU) and a data service unit (DSU). It supports High-Level Data Link Control (HDLC), PPP, and Frame Relay.

The SM-X-1T3/E3 includes the following features:

  • Single port—universal T3/E3 version
  • Clear and subrate support in both T3 and E3 modes
  • Online insertion and removal (OIR) support
  • Onboard processing of Cisco Message Definition Language (MDL) and performance monitoring
  • Support for scrambling and subrate can be independently or simultaneously enabled in each DSU mode
  • Support for full T3 and E3 line rates
  • Support for RFC1407–MIB

T3/E3 Applications and Positioning
The SM-X-1T3/E3 enhanced service module provides high-speed performance for advanced, fully converged networks supporting a wide array of applications and services such as security and advanced QoS for voice and video. T3/E3 and subrate T3/E3 connectivity optimizes WAN bandwidth for deploying new applications and service delivery. All supported platforms are capable of supporting full line rate performance but impose varying levels of CPU overhead and therefore affect the overall platform performance.

SM-X-1T3/E3 Branch Office Positioning and Support Comparison

   Supported Platforms
   Recommended Type of Service
   Recommended Branch Office Sizes

   Cisco 2951

   Subrate and full-rate T3/E3

   Small to medium offices

   Cisco 3925/3925E

   Subrate and full-rate T3/E3

   Large and regional offices

   Cisco 3945/3945E

   Subrate and full-rate T3/E3

   Large and regional offices

    Cisco ISR 4451-X

   Subrate and full-rate T3/E3

   Large and regional offices



  • This product ships Fast&Free with priority handling via industry-leading carriers (FedEx/UPS).
  • Tracking number and signature required delivery will be included with each shipment.
  • All expedited shipping options available.
  • Please contact us for a discounted rate. Offer applies to orders within the continental United States only.
  • All units will be professionally packaged and new in box products will be double boxed.


  • We perform an intensive quality control process on all our products. Units (unless sealed in the original manufacturer’s packaging) are fully tested and certified by our technicians. We run and record diagnostics on serial and operating systems, ensuring they function to the industry standard.
  • Unless the listing specifies otherwise, this product comes with a 1 Year Warranty for the original purchaser as enduser of the equipment, applicable to items sold in the United States only. All others sales are supported by a 90 day extended warranty.


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