Cisco Channelized T1/E1 Features and Benefits

• 1 or 2 ports of RJ-48

• Cisco IOS Software configurable for T1 or E1 operation

• Integrated CSU/DSU per port

• Fractional T1/E1 (n x DS-0) or full T1/E1

• Balanced or unbalanced E1 termination in the same module

• E1 unframed and framed modes (G.703 or G.704)

• Support for Multilink Point-to-Point Protocol (PPP) and Multilink Frame Relay (FRF.16)

• PRI for data

Key Benefits

Enhanced Flexibility

The Cisco E1/T1 ISDN PRI GRWICs are software-configurable between E1 or T1 operation, balanced or unbalanced E1 termination, and CSU/DSU. Customers no longer need to buy a specific module for T1 support and then another card for E1 connectivity. In addition, the same modules provide for balanced (120-ohm) and unbalanced (75-ohm) E1 termination.

Support for G.703 Unstructured E1 Signaling

The 1 & 2 port T1/E1 GRWIC supports G.703 unstructured signaliling. Framed E1 (G.704) is also supported for international customers without G.703 service.

Increased Manageability and Troubleshooting

Critical loopback support makes the Cisco Channnelized T1/E1 and ISDN PRI Modules easy to manage. Both models can internally loop back the onboard framer chip toward the interface, thus eliminating the need for an external loopback plug. Local, remote, line, and payload loopbacks, complement the management features of the Cisco Channelized T1/E1 and ISDN PRI Module.