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## Related Documentation

- CTP150 Serial Interface Module
- CTP150 Multiservice Interface Module

# CTP150 T1/E1 Interface Module

The Juniper Networks CTP150 Circuit to Packet platform optionally includes a replaceable CTP150-IM-4P-T1E1 interface module that can be paired with another module of the same type or a serial interface module.

The four-port T1/E1 interface module supports individual cabling for each port. The CTP150 ports have T1/E1 ports for RJ-48 connectors (see Figure 1). The highest-numbered port (labeled 3) is on the left, and the lowest-numbered port (labeled 0) is at the right, with the CLK port still farther to the right.

Figure 1: CTP150 T1/E1 Interface Module

The software-selectable T1/E1 interfaces for the module are T1, E1, fractional T1, and fractional E1. CSU options, encoding, and encapsulation are also software-selectable.

The module also includes an external clock reference port for an RJ-48 connector. Note that only one external clock reference is required even if there are two interface modules, serial or T1/E1.

| Note: The external clock reference port must be the one in module slot 0, the right-most module slot in the front of the CTP150 chassis.

## Related Documentation

- CTP150 Serial Interface Module
- CTP150 Multiservice Interface Module

#### Published: 2011-01-31

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