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OCx/STMx/DS3-ATM Line Modules and 4xDs3 ATM I/O Modules

ERX-7xx models, ERX-14xx models, and the ERX-310 router support the OCx/STMx/DS3-ATM line modules and 4xDS3 ATM I/O modules.

ERX-14xx models support up to twelve OCx/STMx/DS3-ATM line modules and twelve 4xDS3 ATM I/O modules, the ERX-7xx models support up to five of these line modules and five corresponding I/O modules, and the ERX-310 router supports up to two of these line modules and two corresponding I/O modules. There are four physical T3 (DS3) ports per I/O module. Each port uses two BNC connectors: one for the transmit (TX) connection and one for the receive (RX) connection.

OCx/STMx/DS3-ATM line modules pair with 4xDS3 ATM I/O modules to support the following:

Clocking
Redundancy
Frame Relay logical interface support
Unique IP interface support for each PPP or Frame Relay PVC interface
Line speeds of 45 Mbps

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