Terminal
Description
E01
Not used
E02
Not used
GND
Signal ground
485 A
RS-485, 120 ohm termination resistor, A
485 B
RS-485, 120 ohm termination resistor, B
E06
Not used
E07
Not used
GND
Signal ground
E09
Not used
E10
Not used
DI1
Digital input 1, Pull up input
DI2
Digital input 2, Pull up input
GND
Signal ground
DI3
Digital input 3, Pull up input
DI4
Digital input 4, Pull up input
DC+
Input power, +24 VDC
DC-
Input power, ground (earth)
GND
Signal ground
232 TX
RS-232, Tx, RTU Rx
232 RX
RS-232, Rx, RTU Tx
E21
Not used
GND
Signal ground
Signal ground (chassis ground)
E24
Not used
+24
+24 VDC supply, maximum 50 mA
E26
Not used
E27
Not used
GND
Signal ground
AI2
Analog input 2, 4-20 mA
AI1
Analog input 1, 4-20 mA
Antenna
• SMA connector
• Maximum 4 m (13.1 ft) cable
• Torque 0.56 Nm (0.41 lb.ft)
5 Technical Reference
12
CCD 401 Installation, Operation, and Maintenance Manual
