TPG CA-202A - Page 12

GND
Common terminal
for analog input
control
Common terminal for control
power (12V/24V) and analog input
terminal (AI)
c. Modbus Port (RJ-45)
Type Pin Function Description
1
Communication transmission
terminal (DX+)
2
Communication transmission
terminal (DX-)
Differential input of
RS-485
*Note 1
Modbus (RS-485)
communication only uses
pin1, 2.
Modbus
(RS-485)
3-8 Reserved Reserved
Note 1: The terminal resistor(100Ω) selection is set by DSW1(default: ON)
 8-pin telephone cable: The cable length must be within 5 meters.
 Network cable(AMP): The cable length can be over 5 meters (the longest length
is 100 meters)
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