R1M-P4
P. / 5
EM-5665 Rev.9
TERMINAL CONNECTIONS
Connect the module referring to the connection diagram.
RS-232C
T3
T4
T2
T1
T7
T6
T5
Term.
Resist.
Output
Circuit
When the device is located at the end of a transmission line via twisted-pair cable,
(when there is no cross-wiring), close across the terminal T2 – T3 with the attached
jumper pin (or with a leadwire).
When the device is not at the end, remove the jumper pin.
*
Power
Circuit
+
–
Shielded Twisted-pair Cable
To Other
I/O Modules
Jumper
*
FG
U (+)
V (–)
POWER
D-SUB CONNECTOR
9
8
7
6
5
4
3
2
1
10
12
11
13
15
14
16
17
18
20
19
21
22
23
24
25
27
26
28
29
30
31
32
33
35
34
36
ch.A
ch.B
ch.C
ch.D
COM (–)
COM (–)
COUNTER RESET
ch.1
ch.2
ch.3
ch.4
ch.5
ch.6
ch.7
ch.8
COM (–)
ch.1
ch.2
ch.3
ch.4
ch.5
ch.6
ch.7
ch.8
COM (–)
Input Circuit
TOTALIZED
COUNTER
INPUT
CONTACT
INPUT
CONTACT
OUTPUT
DO NOT CONNECT to the terminals 5 thr. 8 or 10 thr. 16.
Wrong connection may cause failure of the device.
ABBR.
PIN NO. EXPLANATION OF FUNCTION
BA (SD)
2
Transmitted Data
BB (RD)
3
Received Data
AB (SG)
5
Signal Common
CB (CS)
7
Clear to Send
CA (RS)
8
Request to Send
1
Not Used.
4
DO NOT connect. Connecting may
6
cause malfunctions.
9
1
5
6
9
■
RS-232C INTERFACE
