Schweitzer Engineering Laboratories SEL-351A - Table 10.4 Serial Communications Port Pin;Terminal Function Definitions

10.4
SEL-351A Relay Instruction Manual Date Code 20080213
Serial Port Communications and Commands
Port Connector and Communications Cables
SEL-351A to SEL PRTU
SEL-351A to SEL
Communications
Processors or
SEL-2100
SEL-351A to SEL-DTA2
SEL-PRTU
9-Pin Male
Round Conxall
9-Pin Male
"D" Subconnector
1
2
4
5
7
9
5
2
3
7
8
9
GND
TXD
RXD
CTS
+12
GND
GND
RXD
TXD
RTS
CTS
GND
Pin
Func.
Pin
Func.
Pin # Pin #
Cable SEL-C231
SEL-351A Relay
9-Pin Male
"D" Subconnector
9-Pin Male
"D" Subconnector
2
3
4
5
6
7
8
3
2
4
5
6
8
7
RXD
TXD
IRIG+
GND
IRIG–
RTS
CTS
TXD
RXD
IRIG+
GND
IRIG–
CTS
RTS
Pin
Func.
Pin
Func.
Pin # Pin #
SEL Communications
Processors and SEL-2100
Cable SEL-C273A
SEL-351A Relay
Table 10.4 Serial Communications Port Pin/Terminal Function Definitions
(Sheet 1 of 2)
Pin Function Definition
N/C No Connection
+5 Vdc (0.5 A limit) 5 Vdc Power Connection
RXD, RX Receive Data
TXD, TX Transmit Data
IRIG-B IRIG-B Time-Code Input
GND Ground
SHIELD Shielded Ground
RTS Request To Send
CTS Clear To Send
DCD Data Carrier Detect
SEL-DTA2
9-Pin Male
"D" Subconnector
9-Pin Male
"D" Subconnector
2
3
5
7
8
3
2
5
7
8
RXD
TXD
GND
RTS
CTS
TXD
RXD
GND
RTS
CTS
Pin
Func.
Pin
Func.
Pin # Pin #
Cable SEL-C272A
SEL-351A Relay
Courtesy of NationalSwitchgear.com