APC AP9810 用户手册

Dry Contact I/O SmartSlot Card

9

See “Planning your installation”  directly below, “Installation steps” on page 12, 
and “Connecting to the configuration utility” on page 14.

Note the following characteristics of the Dry Contact I/O SmartSlot Card when 
making decisions regarding system integration:

•

 The coils for all output relays are normally energized. The Card will 

generate all possible alarms in case of a system fault, such as cable 
failure, removal of the Dry Contact I/O SmartSlot Card, severe UPS 
battery discharge, or catastrophic hardware failure on the Card.

•

 All output relays are isolated from each other and from the UPS system 

ground.

•

 All input contacts are isolated from the UPS system ground but are 

common to each other

•

 Control inputs are driven by user-supplied dry contact outputs. The dry 

contact closure sensing voltage available on these inputs is nominally 5 
VDC at less than 1 mA. All control inputs are referenced to the UPS 
system ground.

•

 All control inputs must be stable for a minimum of one second to be 

considered valid. Longer delays can be set through the Configuration 
Utility. Control inputs can be asserted indefinitely.

•

 Be careful to assert just a single input to a device. Avoid initiating 

simultaneous, conflicting actions, e.g. input #1 (turn the UPS on) and 
input #2 (turn the UPS off).

•

 Control inputs are acted upon immediately after validation. However, 

there are several UPS conditions that can cause an input to be 
ineffective, such as self-test or runtime calibration. For confirmation of 

Read and understand this manual and the manuals of the UPS before 
installing this card.
Installation must be performed by qualified personnel.
The user is responsible for compliance with all international and national 
electric code requirements.