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22 W7 ASD Installation and Operation Manual
CNU1/1A and CNU2/2A Pinout
Control Board CNU1/1A and CNU2/2A pinout (RJ-45 connectors).
CN3 Pinout
CN3 of the Control Board is used for RS232/RS485 serial communications.
CN7 Pinout
CN7 of the Control Board connects to CN7A of the Control Terminal Strip PCBA.
Table 3. CN7 pinout assignments. Programmable terminals are listed as their default settings.
Pin #
CNU1 Pinout
(Controller PCBA)
CNU1A Pinout
(EOI)
Pin #
CNU2 Pinout
(Controller PCBA)
CNU2A Pinout
(EOI)
1 P24 P24 1
P24 P24
2 Gnd Gnd 2
Gnd Gnd
3 Tx (-) RXA 3
Rx Tx
4 Rx (+) TXA 4
Gnd Gnd
5 Rx (-) TXB 5
Tx Rx
6 Tx (+) RXB 6
Gnd Gnd
7 RS232/RS485 CNU3 Pin-7 7
Open Open
8 Gnd Gnd 8
Gnd Gnd
Pin Number
CN3 Pinout
(Controller PCBA)
1 RS232/RS485 Signal +
2 RS232/RS485 Signal -
3 RS232/RS485 Signal Gnd
4 Shield
Pin Number Function Pin Number Function
1 PP 14 II
2 FL 15 S1
3 VI 16 R
4 RR 17 S3
5 FM 18 S2
6 RX 19 N15
7 FP 20 S4
8 AM 21 P15
9 *OUT1 22 P24
10 *OUT2 23 CC
11 ST 24 CC
12 RES 25 CC
13 F — —
Note: * Open collector outputs.