The Dual-Port Serial PIM (Figure 24) provides a physical connection to serial network media types through two serial interface ports.
Figure 24: Dual-Port Serial PIM

The Dual-Port Serial PIM provides the following key features:
For pinouts of cable connectors for serial PIMs, see Serial PIM Cable Specifications.
For alarms, see the configuring and monitoring alarms information in the J-series Services Router Administration Guide.
For installing and removing a PIM, see Replacing a PIM.
Status LEDs indicate port status. Table 28 describes the meaning of the LED states.
Table 28: Status LEDs for Serial Ports
|
Color |
State |
Description |
|---|---|---|
|
Green |
On steadily |
Online with no alarms or failures. |
|
Red |
On steadily |
Active with a local alarm. The router has detected a failure. |
|
Unlit |
Off |
Offline. |