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CONNECTIONS
CAMERA IN
terminal
ALARM input
terminal
9
10
11
12
13
14
15
VCR
MONITOR
RS485
1
2
A
B
IN
OUT
Multiplexer
Monitor
Timelapse VCR
11
English
G
RS485
A
control
B
terminal
ALARM IN
C
1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16
16
C A B C AL C R1 R2 C SW C
SENSOR ALARM
OUT
CONTROL
RS485
POWER
GND
B
ON
12V DC IN
A
B
System controller
Before making any connection, make sure all the peripheral devices
are turned off.
Multiple units are connected in series using twisted-pair cables (bridge
connection). To set the addresses and make other fine adjustments,
please refer to page 56.
RS-485 terminal connections
Connect a shielded twisted-pair cable (AWG22) from signal A to
signal A, and from signal B to signal B of the RS485 control terminal
of each of the devices.
•
Connection to a VCR
Make the connection between the RS485 (A, B, G) terminal on this
unit and the VCR RS485 A and B terminals and the C terminal.
•
Connection to a multiplexer
Make the connection between the RS485 (A, B, G) terminal on this
unit and the multiplexer control terminals (A, B, C).
G B A
Shielded twisted-pair cable
Push in to insert cable
NOTE: When using devices with an RS-485 connector, the supplied
clamping cores (A) must be installed on the three transmission
cables, to prevent electromagnetic interference from the
other connected devices.
To A signal
To B signal
Ground
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