Table 967: X12 Optical ST connection
Group Jumper connection Description
X3 1-2
2-3
Star topology
Loop topology
X24 1-2
2-3
Idle state = Light on
Idle state = Light off
Table 968: EIA-232 connections for COM0023 (X6)
Pin EIA-232
1 DCD
2 RxD
3 TxD
4 DTR
5 AGND
6 -
7 RTS
8 CTS
Table 969: EIA-485 connections for COM0023 (X6)
Pin
2-wire mode 4-wire mode
1 - Rx/+
6 - Rx/-
7 B/- Tx/-
8 A/+ Tx/+
Table 970: EIA-485 connections for COM0023 (X5)
Pin
2-wire mode 4-wire mode
9 - Rx/+
8 - Rx/-
7 A/+ Tx/+
6 B/- Tx/-
5 AGND (isolated ground)
4 IRIG-B +
3 IRIG-B -
2 -
1 GND (case)
1MAC059074-MB A Section 13
Protection relay's physical connections
615 series ANSI 1159
Technical Manual