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User Manual 10H52258UM60 - Rev. 3 - 01/2019
Electrical Installation & Connections
APM 400/600
standards.
4.2
Connecting the Signal Cable cables
The following sections provide all the information necessary to carry out the signal wiring procedure correctly.
4.2.1
Overview
Depending on the specific needs, the UPS requires auxiliary connections for the following tasks:
•
Battery system management (including the external battery switch).
•
Communicate with the PC.
•
Send alarm signals to the external devices.
•
Remote EPO.
•
Provide Bypass back-feed circuit breaker signals.
•
Parallel Communication.
Figure 4-5 UPS communication ports
The communication box includes the following ports, as shown in Figure 4-5:
1.
EPO Port
2.
RS232 Communication Port
3.
LBS Communication Port
4.
Parallel Communication Port
5.
User Dry contact Port
6.
Intellislot Port
4.2.2
Port J21
Figure 4-6 illustrates the Port J21. This port, which is reserved for operated trained, authorized Service Engineers
only, is used to configure the parallel CAN bus.
When the UPS is delivered, the jumper is connected to the bottom
terminal of port J21. If the number of parallel units is two or less, it may be left as it is, whereas if the number is
greater than two, he jumper must be moved to the top terminal.
Figure 4-6 Dry contact port J21
4.2.3
Dry Contact Port J22
Figure 4-7 illustrates the dry contact Port J22. The dry contact voltage and current ratings are 2 Vdc and 20 mA,
respectively.
