EXS
90
User Manual 10H52260UM60 - Rev. 1 - 10/2017
Relay Card
The UPS is available with a relay card that enables users to use dry contact signals to monitor the UPS. It is hot
pluggable for easy installation.
The relay card can provide up to four digital relay output signals for connection to remote monitoring devices.
These signals are: UPS on Battery, Battery Low, UPS on Bypass or in Standby, UPS Faulty. Each dry contact signal
output channel provides both normally open and normally closed ports. The relay card can also handle up to three
digital signal inputs, two of which control the UPS switch-on and switch-off functions, while the third is reserved.
Appearance and description of hardware
Figure 8-8 Relay card appearance
The DIP switch is used to configure the UPS switch-on and switch-off signal input functions on the relay card. The
DB25 connector provides dry contact signal inputs and outputs. For a description of the DB25 connector pins, see
Table 8-3.
The appearance of the relay card is shown in Figure 8-
8
.
DI
DIP sw
P sw
itc
it
h
ch
DB25 connector
DB25 connector
8.2.3
