Juniper-networks J4350 Manuale Utente Pagina 63

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Physical Interface Modules Overview
Figure 20: ISDN BRI S/T PIM
g002335
STATUS
PORT 3
STATUS
PORT 2
STATUS
PORT 1
STATUS
O
NLIN
E
PORT 0
BRI-ST
Figure 21: ISDN BRI U PIM
g002336
STATUS
PORT 3
STATUS
PORT 2
STATUS
PORT 1
STATUS
ONLINE
PORT 0
BRI-U
ISDN BRI P
IMs provide the following key features:
Onboard n
etwork processor
Bandwidt
h on d emand
Dial back
up
Dial-on-
demand routing backup (floating static and d ialer watch)
For pinou
ts of cable connectors for ISDN PIMs, see “ISDN RJ-4 5
Connector Pinout” on page 199.
ForinstallingandremovingaPIM,see“ReplacingaPIM”onpage144.
ISDN LEDs indicate PIM and port status. Table 22 describes the
meaning of the LED states.
Field-Replaceable PIMs 43
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