CONNECTIONS
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
57
.
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).
Monitor
Timelapse VCR
CAMERA IN
terminal
RS485
control
terminal
System controller
Multiplexer
1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16
C
9
10
11
12
13
14
15
16
C A B C AL C R1 R2 C SW C
VCR
1
2
A
B
RS485
MONITOR
IN
OUT
ALARM IN
CONTROL
SENSOR ALARM
OUT
12V DC IN
POWER
ON
RS485
GND
A
B
B
G
A
B
ALARM input
terminal
Shielded twisted-pair cable
To A signal
To B signal
Ground
G B A
Push in to insert cable
L53R4/US GB 1999, 12, 7
English
11
