Schweitzer Engineering Laboratories SEL-3031 - Figure 2.10 SEL-C387 Cable: SEL-3031 to SEL Communications Processor; Figure 2.11 SEL-C273 A Cable: SEL-3031 Repeater and Synchronizing

SEL-3031 Instruction Manual Date Code 20181001
Installation
Communications
2.20
CAUTION
You must turn off the +5 V on Pin 1 of the SEL-3031 when connecting to a communications processor.
Figure 2.10 SEL-C387 Cable: SEL-3031 to SEL Communications Processor
With IRIG-B
Figure 2.11 SEL-C273A Cable: SEL-3031 Repeater and Synchronizing Cable
SEL-3031
9-Pin Male
Subminiature "D" Connector
With IRIG
9-Pin Male
Subminiature "D" Connector
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Pin # Pin #
NOTE: For best results, limit the cable length to 15 m (~50 ft)
SEL Communications Processor
SEL-3031
9-Pin Male
"D" SUB CONNECTOR
DB-9-P
9-Pin Male
"D" SUB CONNECTOR
DB-9-P
2
3
5
7
8
3
2
5
8
7
RXD
TXD
GND
SYNC IN
SYNC OUT
SHELL
Pin
Func.
RXD
TXD
GND
SYNC IN
SYNC OUT
NO CONNECTION
Pin
Func.
Pin # Pin #
SEL-3031
CABLE: 9 Conductor 22 AWG 7/30 Tinned Copper with PVC Jacket
(Shielded: Alpha 1298C or equal; Unshielded: Alpha 1179 or equal)
ORANGE
RED
BLUE/SHIELD
GREEN
WHITE
SHIELD
Preliminary Copy—Subject to Change