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5-3
INSTALLATION-DK16 KSU & PCB
SECTION 100-816-205
MARCH 1993
FIGURE 5-3
DK16 BASE KEY SERVICE UNIT INTERIOR
AC DC
DC POWER
KPSU16
DC POWER SWITCH
TIE WRAP
HOLDER
AC POWER CABLE
MOUNTING HOLE
AND SCREW
MOUNTING HOLE
AND SCREW
MOUNTING HOLE
AND SCREW
MOUNTING HOLE
AND SCREW
DC OUT
CONNECTOR
P9 (KPSU16
VOLTAGE
TEST POINTS)
BATT
±
KRCU
PULL
LOCK
PUSH
UNLOCK
OFF BATT ON
SW1
MEMORY BATTERY
BACKUP STRAP
OFF BATT ON
–24V CIRCUIT
BREAKER
(RIGHT SIDE)
J4 (CO4)
J3 (CO3)
J2 (CO2)
J1 (CO1)
MODULAR
CONNECTORS
PFI
(STANDARD
TELEPHONE)
MOH VOLUME
CONTROL
P5 (AMPHENOL JACK)
J6, MOH
(TO MOH/BGM
SOURCE)
J7, 600Ω PAGE
(TO PAGE AMP)
KFCU
CONNECTOR
KSTU
OPTIONAL KSTU
SHOWN FOR
REFERENCE ONLY
BATTERY
RIBBON
CONNECTOR (P3)
TB1, FG2
CONNECTOR
FOR EXPANSION
GROUND WIRE
FG SCREW
(LEFT SIDE)
FG WIRE
(GREEN/YELLOW)
P1
P8
P2A P2B
KCOU
SW
400
SW
425
SW
450
SW
475
RESERVE POWER
BATTERY
CONNECTOR
SW
400
NOR PAD
PAD SWITCH ASSIGNMENTS:
SW400 – CO1
SW425 – CO2
SW450 – CO3
SW475 – CO4
POWER SUPPLY