T3 or E3 PIM

The T3 (also known as DS3) PIM (Figure 32) and E3 PIM (Figure 33) provide a physical connection to T3 or E3 network media types. The T3 and E3 PIMs include one physical T3 or E3 port with an integrated data service unit (DSU).

Figure 32: T3 PIM

Figure 33: E3 PIM

The T3 and E3 PIMs provide the following key features:

• Onboard network processor
• Integrated DSU—Eliminates the need for a separate external device
• Subrate and scrambling options with support for major DSU vendors
• Independent internal and external clocking system
• Loopback (payload–supported only on T3 PIM, local, and remote), bit error rate test (BERT), and T3 far-end alarm and control (FEAC) diagnostics

For pinouts of cable connectors for T3 and E3 PIMs, see E3 and T3 BNC Connector Pinout.

To install or remove a PIM, see Replacing a PIM.

Status LEDs indicate port status. Table 27 describes the meaning of the LED states.

Table 27: Status LEDs for T3 and E3 Ports

For alarms, see the configuring and monitoring alarms information in the JUNOS Software Administration Guide.