Figure 9-4 Printed Wiring Board Identification - Honeywell UDC 3300 Product Manual

Printed wiring board
identification
2nd input
board
W1/W2
jumper
1
2-Pin Transformer connections are interchangeable. Either may be used on Digital Input Board or the second Input Board.
1
4/00
Figure 9-4 identifies each of the printed wiring boards that can be
replaced. Refer to this drawing when following the replacement
procedures for each of the boards, since you have to remove all of them
from the chassis to replace the one you want.
In order to lay boards flat, remove the transformer lead from the Auxiliary
Output/Communications board and the Digital Input board.
Refer to the specific procedure table to remove the desired board.
• 2nd Input Board—Table 9-19
• Power Input Board—Table 9-20
• Digital Input Board—Table 9-21
• Auxiliary Output/Communications Board—Table 9-22
• MCU/Output Board—Table 9-23
Figure 9-4 Printed Wiring Board Identification
WG connectors
on Digital Input and
MCU/Output boards
Power/input
board
UDC 3300 Controller Product Manual
Digital MCU/
input output
board board
1
Note: the transformer connectors are
polarized and will only go on one way
Aux.out/
communications
board
PROM
24279
265