Alcatel / Xylan CSM-155-8 Switching Module

The Alcatel/Xylan CSM-155-8 is an eight-port optical switching module engineered for deployment in Alcatel and Xylan network infrastructures. Operating at 155 Mbps (OC-3C/STM-1), this module provides high-speed data transfer across single-mode or multi-mode fiber-optic connections via SC connectors. Memory architecture supports 4K Virtual Circuits per port and 8,192 cell buffers per port, enabling efficient packet handling in carrier-class environments.

Technical Specifications

• Manufacturer: Alcatel / Xylan


• Model: CSM-155-8


• Data Rate: 155 Mbps (OC-3C/STM-1)


• Number of Ports: 8


• Port Connector Type: SC


• Fiber-Optic Cable Support: Single-Mode or Multi-Mode


• Memory Configuration: 4K VC/Port; 8,192 Cell Buffers/Port


• Shipping Weight: 15 lbs/ea

Key Features

• Eight SC-connectorized optical ports for point-to-point and ring topologies


• Dual fiber-optic cable compatibility eliminates mode-mismatch constraints


• Standardized memory allocation optimized for ATM cell switching


• Field-tested units available through third-party inventory channels

Typical Applications

• Metropolitan area network (MAN) backbone switching


• Campus network aggregation points


• Carrier-grade ATM switching fabrics


• Long-haul optical interconnect modules

Compatibility & Integration The CSM-155-8 works with integration within Alcatel OmniSwitch AOS and Xylan switching platforms. Specific compatibility matrices with particular AOS release versions and device series should be confirmed through manufacturer documentation or authorized Alcatel-Lucent Enterprise partners. Modules are available as factory-tested units and may include refurbished inventory in excellent working condition.