DS1 E1 1:N 56PORTS I-TEMP

The Cisco ONS 15454 SONET 56-port DS-1/E1 Card provides 56 DS-1 interfaces operating at 1.544 Mbps received over 100-ohm nominal twisted-pair cable or 56 E1 interfaces operating at 2.048 Mbps over 120-ohm nominal twisted-pair cable. The DS-1 and E1 interfaces are used for terminating transport signals within a central office or customer premises.

This card supports manual-mode or auto-mode frame-format provisioning, simplifying the activation of services. The DS-1s support asynchronous and byte-synchronous options for the mapping to VT-1.5. The E1s supports asynchronous mapping to VC-12 SDH.

• T1
• E1

Features:

• Transmit ports can be retimed by the node clock or through-timed from the received client interface signal
• Allows a single card type to support either DS-1 or E1 signals (not at the same time)
• DS-1 and E1 ports can be selected as an input timing source for the network element
• Ports can be provisioned for asynchronous or byte-synchronous mapping to VT-1.5s
• DS-1 only: All 56 ports are configured for DS-1s (first 28 ports support retiming)
• E1 only: All 56 ports are configured for E1s (first 21 ports support retiming)

Cisco ONS 15454 MSPP