Electrical Connection
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Doc. No.: 9.0020.0589B0
4
Electrical Connection
WARNING!
Be careful of high AC voltage. Check all the input and output cables or
terminals to ensure there is no voltage before electrical connection to avoid
electric shock.
CAUTION!
Connect the cables following strictly the polarities marked on the device to
avoid short circuit hazards.
External Connection interfaces
Before connecting cables, please note the external connection interfaces on the
bottom of enclosure, as shown below.
Figure 4-1
E
xternal connection interfaces
Item No.
Name
Meanings
1
AC
AC power input interface
2
Antenna
Wireless antenna output interface
3
COM1
RS485 bus signal access for AC-PLC
4
COM2
RS485 bus signal access for third party or other devices
5
Ground cable inlet
6
/
Vent valve
Table 4-1
E
xternal connection interfaces
