13.4.8.3
COM0008 and COM0010 jumper locations and connections
The EIA-485 communication module follows the TIA/EIA-485 standard and is intended
to be used in a daisy-chain bus wiring scheme with 2-wire or 4-wire, half-duplex, multi-
point communication. Serial communication can be also used through optical connection
which is used either in loop or star topology.
Two parallel 2-wire serial communication channels can be used at the same time. Also
optical serial connector can be used in parallel with one 2-wire or 4-wire serial channel.
The maximum number of devices (nodes) connected to the bus where the
protection relay is being used is 32, and the maximum length of the bus is
1200 meters.
X 8
X 9
X 7
X 3
X 6
X 5
X 15
X 24
1 2 3
X
1
6
3
2
1
1 2 3
GUID-FDC31D60-8F9F-4D2A-A1A2-F0E57553C06B V1 EN
Figure 589:
Jumper connectors on communication module
Section 13
1MAC059074-MB A
Protection relay's physical connections
1160
615 series ANSI
Technical Manual
Содержание Relion 615 series
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