B400R 1-3kVA User Manual
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10.4 Installing a Network Management Card (optional)
Each UPS in the B400R range has one available communication bay, which supports the optional
Network Management Card. After you install a Network Management Card, you can connect an
environmental monitoring probe to the UPS.
Note:
You do not have to shut down the UPS before you install a communication card.
To install the Network Management Card, complete the following steps:
1) Locate the UPS communication bay.
2) Remove the two screws that secure the communication bay cover to the UPS and save the screws.
3) Insert the Network Management Card into the slot on the UPS.
4) Secure the Network Management Card to the UPS with both screws.
For more information about the Serial Network Management Card, see the Serial Network
Management Card User's Guide.
10.5 Dry Contact port
The UPS incorporates build-in single programmable relay output with potential free contact for
remote alarm indication: Dry out port; and incorporates single signal input: Dry in port. See figure in
the UPS rear panel for the locations of the ports.
The relay output can be configured by LCD setting menu or protocol command, the default output
contact is “Summary Alarm”; the signal input to control UPS On/Off/Maintain bypass status need to
be configured by LCD setting menu or protocol command, the default input contact is “Disable”.
Note:
The relay output contact must not be connected to any utility connected circuits. Reinforced
insulation to the utility is required. The relay output contact has a maximum rating of 30Vac/1A and
60VDC / 2A normal values.
The following diagrams show schematic of the dry out/in contacts: