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4
V550-A20 Operation Manual
Section
3-
4
Connecting Your V550-A20 To An External Device
RS-422 (point to point)
Use the following drawing as a guide when you want to connect your
V550-A20 to a device that is using RS-422 serial communication:
NOTE: Termination resistors may be placed inside the connector strain relief.
The termination resistor value is 220 OHM 1/4 watt.
With RS-422, the receive lines on both sides must be terminated.
CABLE TYPE: ALPHA #5473C (OR EQUIVALENT).
V500-A20
S. GND
SD+
SD-
HOST
NOTE: All connectors are shown from the soldering side.
15
6
1
6
7
1
SD+
RD+
GND
9
8
RD-
SD-
RD-
RD+
220
Termination
220
Termination
RS-485 Multidrop
Use the following drawing as a guide when you want to connect your
V550-A20 to a device that is using RS-485 Multidrop serial
communication:
SD+/RD+
NOTE: RS485 allows for communication across the same lines
Termination resistors can be placed inside the connector strain relief.
The termination resistor value is 220 OHM 1/4 watt.
The transmit-receive lines on both sides must be terminated.
Cable type: Alpha #5473C (or equivalent)
V550-A20
S. GND
S D + / R D +
SD-/RD-
HOST
NOTE: All connectors are shown from the soldering side.
15
6
1
6
8
1
SD+/RD+
SD-/RD-
GND
220
Termination
220
Termination
(Polling Required)
6
8
1
6
8
1
GND
GND
End Of The Line
SD+/RD+
SD-/RD-
SD-/RD-
End Of The Line
You must enable
communication types
using the software.
Refer to your BCSETUP
Manual for more
information.
V550-A20
NOTE:
Cable type: Alpha #5473C (or equivalent)
RS-485 allows for communication across the same lines
Termination resistors can be placed inside the connector strain relief.
The termination resistor value is 220 OHM 1/4 watt.
The transmit-receive lines on both sides must be terminated.
Содержание V550-A20
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