Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 244 / 874

244 Chapter 17 Hardware procedures
241-1501-240 5.2S2
11 MAJV input major visible alarm input from the shelf; normally O/C to LGND to
activate
12 CRITV input critical visible alarm input from the shelf; normally O/C to LGND to
activate
13 SHID3 output shelf identification, switch 2, bit 1; 10 mA maximum for O/C or LGND
14 LGND input is LGND at 0 V dc for the shelf-provided reference for all BIP and
shelf alarms
15 +5 V input +5 V of secondary power from the shelf with a 70 mA maximum is
needed to run the LED portion of the optocouplers for the shelf-to-
BIP interface
16 BKRFAILB output signal to the shelf that the BIM B has a failure or has lost input
power; normally O/C to LGND on report of a failure
17 EXTPWR output report to the shelf any failure of power equipment monitored by BIP
connection J2 that is external to the BIP; 50 mA maximum for O/C
or LGND on alarm
18 ACO output signal to the shelf requesting shelves to reset all active audible
alarms; normally O/C to LGND for the cutoff request
19 SHID0 output shelf identification, switch 1, bit 1; 10 mA maximum for O/C or LGND
20 SHID1 output shelf identification, switch 1, bit 2; 10 mA maximum for O/C or LGND
21 SHID2 output shelf identification, switch 1, bit 3; 10 mA maximum for O/C or LGND
22 SHID5 output shelf identification, switch 2, bit 3; 10 mA maximum for O/C or LGND
23 BKRTRIPA output signal to the shelf that the BIM A has one or more tripped breakers;
normally O/C to LGND on report of a trip
24 BKRFAILA output signal to the shelf that the BIM A has a failure or has lost input
power; normally O/C to LGND on report of a failure
25 BKRTRIPB output signal to the shelf that the BIM B has one or more tripped breakers;
normally O/C to LGND on report of a trip
26 BIPFAIL output report to the shelf a failure in the BIP (an ORing of BKRTRIP,
BKRFAIL, and ALMFAIL; LGND has a 50 mA maximum or O/C on
alarm (report to shelf)
Table 5 (continued)
Pinout of the BIP female D-sub high-density 26-pin connectors P7 through P10
Pin Signal Function Description
(Sheet 2 of 2)