
24
Q7 ASD Installation and Operation Manual
CNU1 and CNU2 Pinout
CNU1 and CNU2 pinout (RJ-45 connectors).
CNU3 Pinout
CNU3 is used for RS232/485 serial communications.
CN7 Pinout
CN7 connects to CN7A of the Control Terminal Strip PCBA.
Table 4. CN7 pinout assignments. Programmable terminals are listed as their default settings.
Pin #
CNU1 Pinout
(Controller PCB)
TTL/RS232/RS485
Interface
Pin #
CNU2 Pinout
(Controller PCB)
TTL/RS232/RS485
Interface
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
RS232/485
CNU3 Pin-7
7
Open
Open
8
Gnd
Gnd
8
Gnd
Gnd
Pin Number
CNU3 Pinout
(Controller PCB)
1
RS232/485
2
RS232/485 Signal -
3
RS232/485 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
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—
Note: * Open collector outputs.