RS485 Setting
Follow the procedures as below.
1. Slide the panel to the left until it locks.
2. Set RS485 Termination Switch to LINE TERM for
the furthermost camera from the RS232C/RS485
converter and Hi-Z for the other camera.
Initial factory setting is LINE TERM.
3. Select protocol by sliding triple Half-Duplex/Full
Duplex Selection Switches simultaneously.
Initial factory settings are 4-line.
Notes:
• BP stands for Bit Position.
• Daisy chain connection is not available for full
duplex.
-11-
RS485 Termination Switch (BP 1)
Function
LINE TERM
Termination ON
Hi-Z
Hi-Z
BP 2
BP 3
BP 4
Function
Right
Right
Right
Full duplex (4-line)
Left
Left
Left
Half duplex (2-line)
Switch
Position
Switch
Position
BP1
BP2
BP3
BP4
●
Internal Diagram
T (B)
T (A)
R (B)
R (A)
GND
T (B)
T (A)
R (B)
R (A)
GND
Data Transmission
Data Reception
Data Transmission
Data Reception
RS485 Terminal
Control data is transmitted and received to and from
other peripherals.
Notes:
• Shielded, two twisted pairs cable
• Low impedance
• Wire gauge size is thicker than AWG#22
(0.33 mm
2
)
<Half duplex>
<Full duplex>
