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Connect the cables to the RS485 Output unit.
Step4
Connect a twisted-pair cable (locally procured) to
the RS485 port.
When connecting an external device, remove
9 mm - 10 mm {11/32 inches - 13/32 inches} of the
outer jacket of the cable and twist the cable core to
prevent the short circuit first.
Specification of cable (wire): AWG22 - AWG28,
Single core, twisted
* Check whether the stripped part of the wire is not
exposed and is securely connected.
<When connecting the RS485 Output unit to a connection device one-to-one>
Turn the termination switch to [ON] when using the camera.
(The termination switch is set to [ON] at default settings.)
4-line
RA
RB
TA
TB
Connected
Twisted-pair
device
cable
< When connecting the RS485 Output unit to the connection device with multiple daisy-
chains connections>
When using the unit at the end of a daisy-chain
connection
A
B
RS485 2-line
Twisted-pair
cable
RS485 Output unit
termination switch [ON]
IMPORTANT:
• The RS485 port of this unit is intended for use with 4-line communications. When connecting
2-line communication devices, make connections as shown in the illustration above.
• When making connections with 2-line communications, select "2-line" in the setup menu.
The configurations for the setup menu will be configured in Step5.
• Make connections so that excessive force is not applied to the twisted-pair cable when they are
connected.
• If you plan on using a long twisted-pair cable stretched over a long distance, be sure to use a
thick AWG22 - AWG24 cable.
2-line
TA
TB
RA
RB
RS485
Connected
Output unit
device
When the unit is connected in the middle of a
daisy-chain connection
A
B
RS485 2-line
Twisted-pair
cable
Termination switch
RA
A
RB
B
TA
TB
RS485 Output unit
termination switch [OFF]
RS485 port
TA
TB
RA
RB
RS485
Output unit
Other
connected
devices
7
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