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18
• Basic Connection
• Daisy Connection
● RS-485 Terminal Connection (Camera
Communication)
These terminals are connected with system devices using
the Camera Communication Protocol in 4-line full duplex or
2-line half duplex mode specified with the DIP switch set-
ting.
Notes:
• Use a data grade, shielded and twisted cable suited to
RS-485. The maximum allowable cable length is 4 000
ft (1 200m).
• Termination should be made at both ends of the data
line, while being open at intermediate devices.
8 Internal Diagram
8 4-line Full Duplex
8 2-line Half Duplex
DATA
Data Multiplex Unit
WJ-MP204C
System Controller
WV-CU360C
DATA
RS-485 Cable
Termination:
ON
Termination:
ON
DATA
Data Multiplex Unit
WJ-MP204C
Branch
Cable
Termination:
OFF
Termination:
ON
System Controller
WV-CU360C
DATA DATA
Video Multiplexer
WJ-FS309 (WJ-FS316)
RS-485
Cable
Termination:
ON
RS-485
Cable
RA
TB
4
3
2
1
TA
RB
WJ-MP204C
SYSTEM
UNIT
RT
ABABG
RT
ABABG
RS485
RS485
Termination ON
(at the end position)
Camera communication mode
MODE
4-Line
(Full duplex)
SYSTEM
UNIT
WJ-MP204C
RS485
RT
ABABG
RT
ABABG
Termination ON
(at the end position)
Camera communication mode
MODE
2-Line
(Half duplex)
RS485