- Expansion module
- Frame Relay
- 8 ports
The Cisco Channelized T1/E1 SPA provides one of the greatest densities currently offered in the industry at 8 ports per SPA and up to 32 ports per SIP. At a cost per T1/E1 port less than that of a standard serial port with external channel service unit/data service unit (CSU/DSU), the Cisco Channelized T1/E1 SPA is cost-effective for all WAN connectivity.
The Cisco Channelized T1/E1 SPA is designed to provide a full 8-port channelized solution for the Cisco 7600 Series Routers. The interfaces can be channelized, fractional, or unframed (E1) with up to 256 independent High-Level Data Link Control (HDLC