SPA is a modular type of port adapter that inserts into a subslot of a compatible SIP carrier card to provide network connectivity and increased interface port density. The Cisco 2-Port OC-3 POS SPAs are available on high-end Cisco Systems routing platforms offering the benefits of network scalability with lower initial costs and ease of upgrades.

Product Description	Cisco 2-Port OC-3c/STM-1c POS Shared Port Adapter - expansion module - 2 ports
Device Type	Expansion module
Form Factor	Plug-in module
Dimensions (WxDxH)	17.2 cm x 18.5 cm x 2 cm
Weight	0.3 kg
Ports Qty	2 ports
Cabling Type	Fiber optic
Line Rate	OC-3c/STM-1