Schweitzer Engineering Laboratories SEL-311L Instruction Manual page 38

See Section 10: Line Current Differential Communications and Serial Port Communications
and Commands for channel interface configuration settings, and for channel monitor settings.
SEL-311L
CHX/CHY
25-Pin Male
TXDA 2
TXDB 14
RXDA 3
RXDB 16
RXCA 17
RXCB 9
TXCA 15
TXCB 12
COMMON 7
SHLD*
SEL-311L (Local)
Figure 2.6: Typical EIA-422 Interconnection
SEL-311L
CHX/CHY
25-Pin Male
TXDA 2
TXDB 14
RXDA 3
RXDB 16
SHLD*
SEL-311L (Local)
Figure 2.7: Typical G.703 Codirectional Interconnection
2-10
EIA-422
* Ground cable shield at the multiplexer
G.703
codirectional
* Ground cable shield at the multiplexer
Installation
SEL-311L Instruction Manual
Multiplexed Network
Multiplexed Network
SEL-311L
CHX/CHY
EIA-422 25-Pin Male
2 TXDA
14 TXDB
3 RXDA
16 RXDB
17 RXCA
9 RXCB
15 TXCA
12 TXCB
7 COMMON
SHLD*
SEL-311L (Remote)
DWG: M311L071a
SEL-311L
CHX/CHY
G.703
25-Pin Male
codirectional
2 TXDA
14 TXDB
3 RXDA
16 RXDB
SHLD*
SEL-311L (Remote)
DWG: M311L072
Date Code 20010625