Rear Panel RS-232 Communication Port
Pin Assignments
Tables 7 indicates the pin assignments for the rear panel
RS-232 communication port (Figure 23). Refer to Figure 24
for pin identification. Refer to Protocols for additional
information.
Refer to the Accessories section of this manual for
additional communication options.
S280-70-3
29
Pin Number Signal Name
1 DCD .................... Carrier Detect
2 RXD .................... Receive Data
3 TXD ..................... Transmit Data
4 DTR .................... Data Terminal Ready
(Not Connected)
5 GND .................... Signal Ground
6 DSR .................... Data Set Ready
(Not Connected)
7 RTS .................... Request to Send
8 CTS .................... Clear to Send
9 NC ..................... Not Used
10 (Shroud) ................. Chassis Ground
TABLE 7
Rear Panel RS-232 Communication Port Pin
Assignments
RS-232 DTE
J1-RS-232
12
3
45
6
7
89
Figure 24.
Rear panel RS-232 communication port pin
identification.
TB1
1
2
3 57911 13 15 17 19
46 81012141618
CI1
CI2 CI3 SS1 CO1
CO2 CO3
CO4
CI4
CI1 CI2 CI3 SS1 CO1 CO2 CO3 CO4
TB3
1
3
579111315171921
CI5 CI6 CI7 CI8 CI9 CI10 CI11 CO5CO6
TB4
2
46 81012141618
20
CI4 CI5 CI6 CI7 CI8 CI9 CI10 CI11 CO5
CO6
13
5
7911 13
CO7CO8
CO9CO10CO11
CO12
2
46 81012
CO7CO8 CO9CO10CO11CO12
J1-RS-232
IRIG-B
RS-232 DTE
RS-232 Serial
Communication Port
TB9
+
–
28 VDC
WHETTING VOLTAGE
P1
P2
P3
P4
VOLTAGE SENSING
53VDC CONTROL CABLE28 VAC
1
2
3
45
1
2
3
45
23
22
21
20
19
11
10
9
87
18
17
16
15
14
6
5
4
32
13
1
24
12
1
2
3
4
5
3
1
3
1
3
4
2
4
24
1
2
IRIG-B Time
Sync Connector
Figure 23.
Form 6 pole-mount recloser control rear panel RS-232
communication ports (standard configuration).
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