AT&T 3B2/300 Technical Reference Manual page 572

- - - - - - - - - - - - - - - - - - - - - - - - - - - FUNCTIONAL DESCRIPTION
AT&T XM/405S/900S POWER SUPPLY
110 VAC
OR
r----------,
I '-'-
1
115VAC
I VOLTAGE
r-"7/
I
I
SELECT '-
I
220 VAC
I
JUMPER
I
1
~
I
I I
L------ ___
.J
220-240 VAC
SA FUSE AND
LINE FILTER
FAN
(INTERNAL)
POWER
CONTROL
JACK
10.6 voe
+5 voe
POWER ON
CONTROL
.._ _____ _.il
GROUND
-------.w
POWER
CONTROL
JACK
"POWER"
INDICATOR
CONNECTOR
(RED) Bl
(BLUE) 82
+5 voe
POWER ON
CONTROL
+5 voe
GROUND
POWER
SUPPLY
SET
POWER
CONNECTOR
+12 voe
(HARD DISK)
1 - - - - - ~ - . f
Al (RED)
GROUND
1 - - - - - - - t
A2 (BLUE)
_ _ G_R_o_u_N_o _ _ -1 A3 (BLUE)
...... _+_ 5 _v_ 0
_c _ _
. i _ A4 (YELLOW)
POWER
CONNECTOR
+12 voe
(HARD DISK)
1 - - - - - ~ - . f
Al (RED)
_ _ G_R_o_u_N_o _ _ -1 A2 (BLUE)
GROUND
- - - - - - - 1
A3 (BLUE)
+5 voe
1 - - - - - ~ - . f
A4 (YELLOW)
+12 voe
POWER
CONNECTOR
(HARD DISK)
1--G-RO_U_N_D-~-.f
Al (RED)
1 - - - - - ~ - . f
A2 (BLUE)
GROUND
- - - - - - - 1
A3 (BLUE)
+5 voe
1-----~-t
A4 (YELLOW)
+12 voe
GROUND
POWER
CONNECTOR
(CONTROLLER)
- Al (RED)
A2 (BLUE)
GROUND
- - - - - - ~ A3 (BLUE)
+5 voe
...__ _ _ _ _ . - - - - - - - ... A4 (YELLOW)
Figure 3-105: AT&T XM/405S/900S Power Supply - Functional Block Diagram
FUNCTIONAL DESCRIPTION 3-319