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Group
Jumper connection
Description
Notes
X9
1-2
2-3
A+ bias enabled
A+ bias disabled
1)
4-wire RX channel
X8
1-2
2-3
B- bias enabled
B- bias disabled
1)
X11
1-2
2-3
Bus termination enabled
Bus termination
disabled
1)
1) Default setting
COM2 port connection can be either EIA-485 or optical ST. Connection type is selected
by setting jumpers X27 and X28.
Table 964:
COM2 serial connection X5 EIA-485/ X12 Optical ST
Group
Jumper connection
Description
X27
1-2
2-3
EIA-485
Optical ST
X28
1-2
2-3
EIA-485
Optical ST
Table 965:
2-wire EIA-485 jumper connectors for COM2
Group
Jumper connection
Description
X13
1-2
2-3
A+ bias enabled
A+ bias disabled
X14
1-2
2-3
B- bias enabled
B- bias disabled
X15
1-2
2-3
Bus termination enabled
Bus termination disabled
Table 966:
4-wire EIA-485 jumper connectors for COM2
Group
Jumper connection
Description
Notes
X13
1-2
2-3
A+ bias enabled
A+ bias disabled
COM2
4-wire TX channel
X14
1-2
2-3
B- bias enabled
B- bias disabled
X15
1-2
2-3
Bus termination enabled
Bus termination disabled
X16
1-2
2-3
Bus termination enabled
Bus termination disabled
4-wire RX channel
X17
1-2
2-3
A+ bias enabled
A+ bias disabled
X18
1-2
2-3
B- bias enabled
B- bias disabled
Section 13
1MAC059074-MB A
Protection relay's physical connections
1158
615 series ANSI
Technical Manual
Содержание Relion 615 series
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