5
WIRING FOR 485 AND 232 SERIAL COMMUNICATION
OPTIONS
Wire power and outputs as shown on page 3. Wiring
for options is shown in Figure 4 below. All wiring shown
below is Class 2. Shielded twisted pair is recommended
for Option 485.
DO NOT run signal wiring in the
same conduit or chase as the power
wiring. Erratic operation or damage
to the control circuitry will result.
WARNING
Figure 4: Wiring for options
Terminal
29
30
31
32
Option 485
Option 232
Y (receive -)
Not used
Z (r)
Data out
A (transmit -)*
Data ground
B (tr)*
Data in
*For half-duplex operation wire only A and B. Do not connect to Y and Z.
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
DATA IN 30
DATA OUT 32
DATA GROUND 31
PIN DESCRIPTION
1 SHIELD
2 TRANSMIT
3 RECEIVE
4 RTS
5 CTS
PIN DESCRIPTION
6 DSR
7 GROUND
8 DCD
20 DTR
DB-25 WIRING
[VIEWED FROM WIRE SIDE]
1 2 3 4 5
6 7 8 9
RS-232 DB-9 WIRING [VIEWED FROM WIRE SIDE]
PIN DESCRIPTION
1 DCD
2 RECEIVE
3 TRANSMIT
4 DTR
5 GROUND
6 DSR
7 RTS
8 CTS
DATA OUT 32
DATA IN 30
DATA GROUND 31
10
9
8
7
27 28 29
30 31 32
20
19
18
17
6
5
4
3
2
1
21 22 23
24 25 26
16
15
14
13
12
11
OPTION
485 DIP HALF
DUPLEX*
SWITCH
POSITIONS*
FULL DUPLEX
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
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