15
4
(Optional) Installing Cables for Optional Cards
The methods for installing the SNMP card and dry contact card for a parallel system and for a
single UPS are the same. See the single UPS part for details. The following shows how to install
cables for the Modbus card.
UPS 2UPS 1
5
(Optional) Connecting a Switch to EPO Ports
1. Connect an external switch to the EPO ports and turn on the switch. After you turn on the
switch, the inverter stops, and the UPS does not transfer to bypass mode. In this way, the
UPS stops supplying power immediately.
2. The external switch (it can be a common switch) that connects to the EPO ports needs to be
provided by the customer.
UPS 2UPS 1
6
Installing Parallel Communications Cables
Parallel
communications cable
UPS 2
UPS 1
RS232-RS485 adapterRS232 serial
port on the PC