
T400 Controller Facilities Manual
667/EB/20200/000 Page 15-5 Issue 9
Figure 15.1 - BLOCK DIAGRAM OF MAIN PROCESSOR BOARD
REARFRONT
POWER ON LED
(GREEN)
WATCHDOG FAIL LED
(RED)
SYSTEM ERROR LED
(RED)
LEVEL 3 ACCESS BUTTON
TO PHASE
DRIVER BOARDS
(34 WAY IDC’S)
25 WAY
D-TYPE
HANDSET
SOCKET
10.0mm
10.0mm
EXTENDED
SYSTEM BUS
40 WAY IDC
TO MANUAL
PANEL
34 WAY IDC
16 INPUTS
(26 WAY IDC)
POWER
(10 WAY)
4 SIGNAL LAMP
RELAY OUTPUTS
AND
4 RELAY OUTPUTS
(16 WAY IDC)
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