Figure 5-6: Relay Card-Ms; Figure 5-7: Industrial Relay Card - Eaton 93PR Installation And Operation Manual

• Relay Card-MS
Two types of interfaces via a DB9 connector are available with this card. Dry contact mode provides
a simple way to transmit UPS information to an alarm system, PLC, or computer system via dry relay
contacts. By default the transmitted information is load powered, load on bypass, load on battery, load on
utility, battery fault, and low battery. RS232 mode provides an RS232 interface for connection to a PC or to
a UPS Control display unit. Jumpers are used to select the interface (contacts or RS232).

Figure 5-6: Relay Card-MS

• Industrial Relay Card
The Mini-Slot Industrial Relay Card provides a way of connecting the 93PR to industrial and electrical
monitoring systems. It also enables a wide range of control applications by allowing up to 250 volts and 5
Amperes through its 5 relay connections. By connecting wires to the corresponding places in its terminal
blocks you can choose Normally Open or Normally Closed setup for each output.

Figure 5-7: Industrial Relay Card

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