GE Multilin T60 Transformer Protection System 3-25
3 HARDWARE 3.2 WIRING
3
For the 9G/9H CPU, the 10Base-T port can only be used when the CH1 10Base-F fiber has been removed. The
10Base-T Ethernet cable and the CH1 10Base-F fiber cable cannot both be installed at the same time.
For 9J/9K CPU, the 10/100Base-T port has the lowest priority and is only active if both CH1 and CH2 fiber links are
down. Installation of the 10/100Base-T Ethernet cable at the same time as the CH1 and/or CH2 100Base-F fiber
cables does not affect the communication over the CH1 or CH2 fiber ports.
Figure 3–25: CPU MODULE COMMUNICATIONS WIRING (MODULE APPLICABLE DEPENDS ON ORDER CODE)
100Base-FL
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU
RS485
COM2
9L
COM1NORMAL
Co-axial cable
Co-axial cable
SM fiber
optic cable
Ground at
remote
device
NORMAL
ALTERNATE
COM1
100Base-FL
100Base-F
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU 9M
Co-axial cable
Co-axial cable
Shielded twisted-pairs
SM fiber optic cable
Ground at
remote
device
RS485
COM2
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU 9E
RS485
COM2
COMMON
+
—
D1b
D2b
D3b
RS485
COM1
Ground at
remote
device
Co-axial cable
Co-axial cable
Shielded twisted-pairs
842765A7b.CDR
CPU 9S
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
Co-axial cable
Co-axial cable
Shielded twisted-pairs
Ground at
remote
device
RS485
COM2
Ground at
remote
device
NORMAL
10/100Base-T
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU
Co-axial cable
Co-axial cable
Shielded
twisted-pairs
RS485
COM2
COM1
9N
NORMAL
ALTERNATE
COM1
10Base-FL
10Base-FL
10Base-T
Tx1
Rx1
Tx2
Rx2
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU 9H
Co-axial cable
Co-axial cable
Shielded
twisted-pairs
MM fiber
optic cable
Ground at
remote
device
RS485
COM2
REDUNDANT
NORMAL
ALTERNATE
COM1
100Base-FX
100Base-FX
10/100Base-T
Tx1
Rx1
Tx2
Rx2
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU 9K
Co-axial cable
Co-axial cable
Shielded
twisted-pairs
MM fiber
optic cable
Ground at
remote
device
RS485
COM2
REDUNDANT
NORMAL
COM1
10Base-FL
10Base-T
Tx1
Rx1
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU 9G
RS485
COM2
Shielded twisted-pairs
Co-axial cable
Co-axial cable
MM fiber
optic cable
Ground at
remote
device
ALTERNATE
100Base-FX
Tx1
Rx1
COMMON
+
+
—
—
D1a
D2a
D3a
D4b
D4a
BNC
BNC
IRIG-B output
IRIG-B
input
CPU
RS485
COM2
9J
COM1NORMAL
Co-axial cable
Co-axial cable
MM fiber
optic cable
Ground at
remote
device
10/100Base-T
ALTERNATE