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Infinite
4096
Hybrid
Xey Telephone
System
MAINTENANCE
AND TROUBLESHOOTING
Table 800-4
Key
Station
Interface
Board
(KIE)
FUNCTION
CONTROL
OPTIONS
FAULT
OPTIONS
KIB
Provides interface
Busy state LED
None
1.Unable to receive
Color Code: Green
for 8 key
that monitors
cir-
intercom dial tone.
telephones.
cults for busy condl-
2.Poor transmk3sion
tion.
charactertstlcs.
Service switch with
Normd/Sendce
3.Key telephone
set
mode.
InoperatIve.
.
4.Key telephone
un-
able to invoke few
tures
5.No LED indlca-
tions.
Table 800-5
Key Station
Interface
Board
w/OEIVA
(KIB/OHV)
FUNCTION
CONTROL
OPTIONS
FAULT
OPTIONS
KIB/OHV
Provides interface
Busy state LED
None
1 #Poor transmission
Color Code: Green
for 8 key
that monitors
cir-
characteristtcs.
telephones and
cults for busy condi-
provides the off-
tlon.
2.Key telephone
set
hmk voice feature
Inoperative.
Sewice swttch with
for those
3. Loss of Off-Hook
telephones.
Normal/Service
Voice Announce.
mode.
Table
800-6
Central
Office
Interface
Bard
(COB)
FUNCTION
CONTROL
ORIONS
FAULT
OPTIONS
COB
Provides intmfaa
Busy state LED
None.
l.Unable
to receive
Color Code: White
for 8 CO/PBX lines.
that monitors
cir-
CO dial tone.
CURS for busy condl-
2.Unable
to break
Uon.
CO dial tone.
Service switch with
NomaI/Sexvice
3.CO line(s) not
mode.
ringing.
2
Issue
1, January
1992
800-3
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