144. DC OUTPUT (Umbilical Connector)
This locking, multi-pin connector provides the
necessary DC voltages from the PW4000 power
supply to the PM4000 console. The cable must be
connected correctly before attempting to operate
the console. See Figure 2-17 for the pin
assignments.
CAUTION: Always make certain that thePW4000 power is turned OFF prior toconnecting or disconnecting the umbili-cal cable at the console or at the powersupply.
145. FUSES
Three main fuses and one sub fuse protect the
primary and secondary portions of the PW4000
power supply. They should be replaced only with
fuses of the same current rating and type (250 V
Slo-Blow): 3 Main Fuses @ 6 A; Sub Fuse @ 3A.
NOTE: Internal fuses in the PW4000 are also present,
but should not normally blow. These are for service by
qualified service personnel only.
2 -19V
3
FRAME GND
4 -19V
5 -19V
6
FRAME GND
7
FRAME GND
8
+19V
9 +19V
10
±19V GND
11
±19V GND
12
+12V GND
13
+19V
14
+19V
16
±19V GND
17
+12V GND
18
+12V GND
19
PM CAUTION (+)
20 +48V
21
+48V GND
22 +12V
23
+12V
24
PW CAUTION (-)
25 NC
26
NC
27 +12V
146. (Power Cord)
This power cable connects the PW4000 to the AC
power mains. A grounded (3-wire) outlet of at least
15 amperes capacity should be used.
147. LINE VOLTAGE INDICATOR (Switch)
When this slide switch is in the ON position, the
front-panel digital indicator (142) will display
the line voltage regardless of the position of the
POWER switch (141).
CABLE END (MALE)
PIN
Nº
FUNCTION
PIN Nº
FUNCTION
1 -19V
15 ±19V GND
Figure 2-17. PW4000 Umbilical Connector
Pin Assignments
Page 2-35