AT&T 3B2/300 Technical Reference Manual page 565

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - -
3B2/600/700 POWER SUPPLY
HARD DISK 0
CONNECTOR
110 VAC +12 voe
OR
Bl (YELLOW)
220-240 VAC
GROUND
B2 (BLUE)
GROUND
< •
B3 (BLUE)
FAN
I
,
+SVDC
.
B4 IRPD\
FAN
<.
HARD DISK 1
I
,,,
CONNECTOR
+12 voe
POWER
XMRTN
Cl (YELLOW)
CONTROL
+s voe
GROUND
JACK
C2 (BLUE)
GROUND
C3 (BLUE)
THERMAL
--
...
,,
+s voe
SENSOR
I
r4 'RED'
FLOPPY DISK
CM519A/B
CONNECTOR
BACKPLANE
+12 voe
DI (YELLOW)
L,ounr
POWER
GROUND
(YELLOW) Al
-
SUPPLY
D2 (BLUE)
L,ounr
(YELLOW) A2
SET
GROUND
rnr,n,m
D3 (BLUE)
(BLUE) A3
+svoc
("'1'("'111,In
D4 (RED)
(BLUE)A4
_,,vnr CARTRIDGE
(ORANGE) AS
-
TAPE DRIVE
D(WCTn
CONNECTOR
(VIOLET) A6
DWD""'
+12 voe
(BROWN) A7 El (YELLOW)
_ _, __ ,,m,
GROUND
(GREEN) AB
-
E2 (BLUE)
-
TT-JCnl,Tn
GROUND
E3 (BLUE)
(WHITE) A9
-
PDWNROO
+SVDC
E4 (RED)
/GRAY\ AIO
CARTRIDGE
CM519A/B TAPE DRIVE
BACKPLANE CONTROLLER
2 - 4WIRE
+12 voe
Fl (YELLOW)
vrr
.
(RED)
GROUND
F2 (BLUE)
2-4WIRE
("'1'"1""'
(BLUE)
GROUND
F3 (BLUE)
+SVDC
F4 (RED)
ON/STANDBY
""
SWITCH
BRIDGE
STANDBY
CONTROLLER
(TOGGLE)
+12 voe
GI (YELLOW)
RESET
GROUND
SWITCH
RESET
G2 (BLUE)
(INTERNAL TO
GROUND
G3 (BLUE)
POWER SUPPLY)
GROUND
+SVDC
G4 (RED)
Figure 3-101: 3B2/600 and 700 Computer Power Supply - Functional Block Diagram
3-312 TECHNICAL REFERENCE MANUAL