SM-X-1T3/E3= Cisco Enhanced Expansion module at discount

SM-X-1T3/E3 Specifications

Cisco Service Module 1-Port T3/E3 WAN Interface

Manufacturer: Cisco Systems
Manufacturer Model: SM-X-1T3/E3
Product Line: Cisco Service Modules
Product Series: SM-X WAN Interface Modules
Product Type: WAN Interface Service Module
Product Name: Cisco SM-X 1-Port T3/E3 Service Module

KEY FEATURES:
Ports: 1 × T3/E3 WAN port
Supported Interfaces: T3 (DS3) and E3
Connector Type: Coaxial (BNC)
Module Type: Enhanced Service Module (SM-X)
Hot-Swap Support: Yes
Compatibility: Cisco ISR 4000 Series Routers

PERFORMANCE:
T3 Data Rate: Up to 44.736 Mbps
E3 Data Rate: Up to 34.368 Mbps
Line Coding: B3ZS (T3), HDB3 (E3)
Framing: C-Bit Parity, M13 (T3), G.751 (E3)

ENVIRONMENTAL & RELIABILITY:
Designed for enterprise WAN and service provider environments
Enterprise-class reliability for continuous operation
Supports advanced WAN features via IOS XE

PHYSICAL:
Form Factor: SM-X Service Module
Installation: Internal router module slot
Hot-Pluggable: Yes
Cooling: System-managed airflow via host router