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4-Port ISDN BRI PIMs
The 4-port ISDN BRI PIMs have four physical ports that support the ISDN
BRI S/T (Figure 20) or ISDN BRI U (Figure 21)
interface type.
Figure 20: ISDN BRI S/T PIM
Figure 21: ISDN BRI U PIM
ISDN BRI PIMs provide the following key features:
- Onboard network processor
- Bandwidth on demand
- Dial backup
- Dial-on-demand routing backup (floating static and dialer watch)
For pinouts of cable connectors for ISDN PIMs, see ISDN RJ-45 Connector Pinout.
For installing and removing a PIM, see Replacing a PIM.
ISDN LEDs indicate PIM and port status. Table 23 describes
the meaning of the LED states.
Table 23: LEDs
for ISDN BRI S/T and U PIMs
|
Label
|
Color
|
State
|
Description
|
|
ONLINE
|
Green
|
Blinking
|
Call setup is successful on either the B1 or B2 channel.
|
|
Green
|
On steadily
|
ISDN Layer 2 is active.
|
|
Amber
|
On steadily
|
- ISDN Layer 1 is active.
- ISDN Layer 2 is unavailable.
|
|
Red
|
Disconnected
|
- BRI interface port is not connected.
- ISDN Layer 1 is unavailable.
|
|
Unlit
|
Off
|
BRI interface is offline.
|
|
STATUS
|
Green
|
On steadily
|
PIM is online and operational.
|
|
Red
|
Disconnected
|
PIM is not operational and needs replacement.
|
|
Unlit
|
Off
|
PIM is offline.
|
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