DRY CONTACTS BOARD (OPTIONAL)
Common
1
2
Fault
3
4
Bypass
5
6
AC fail
7
8
Low BAT
9
10
The Dry Contact Board is constituted by a 10 pin connector.
1. Common
Pin 1 and Pin 2 are common pins.
2. Fault
Pin 3 is the normal-open output: When UPS works normally, Pin 3 and Pin 1-2 will be
open, when UPS is failed, Pin 3 and Pin 1-2 will be closed.
Pin 4 is normal-closed output: When UPS works normally, Pin 4 and Pin 1-2 will be
closed, when is failed, Pin 4 and Pin 1-2 will be open.
3. Bypass
Pin 5 is the normal-open output: When UPS works normally, Pin 5 and Pin 1-2 will be
open, when UPS works in bypass mode, Pin 5 and Pin 1-2 will be closed.
Pin 6 is normal-closed output: When UPS works normally, Pin 6 and Pin 1-2 will be
closed, when UPS works in bypass mode, Pin 6 and Pin 1-2 will be open.
4. AC fail
Pin 7 is the normal-open output: When UPS works normally, Pin 7 and Pin 1-2 will be
open, when UPS works in AC failure mode, Pin 7 and Pin 1-2 will be closed.
Pin 8 is normal-closed output: When UPS works normally, Pin 8 and Pin 1-2 will be
closed, when UPS works in AC failure mode, Pin 8 and Pin 1-2 will be open.
5. Low Bat
Pin 9 is the normal-open output: When UPS works normally, Pin 9 and Pin 1-2 will be
open, when UPS works in battery low voltage mode, Pin 9 and Pin 1-2 will be closed.
Pin 10 is normal-closed output: When UPS works normally, Pin 10 and Pin 1-2 will be
closed, when UPS works in battery low voltage mode, Pin 10 and Pin 1-2 will be open.
UPS EVO RT 8 User’s manual
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