Pinouts of Connectors

UPS YUNTO P Series (250/500/750/1250) connector pinout

layout
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9 pin D-SUB FEMALE connector pin-out & layout
9 pin D-SUB FEMALE connector  at the UPS
Pin Name Dir Description
1 Battery Mode out This pin is shorted to PIN 5 (ground) if the mains power supply fails or is out of tolerance. (NORMALLY OPEN)
2 - - -
3 - - -
4 - - -
5 Ground - Ground terminal and common root of contacts at PIN 1, 8 and 9
6 - - -
7 UPS shut-down IN If a positive signal level (+5V to +12V DC) is applied, the UPS system switches off (PIN 5 is ground)
8 Battery Capacity Low OUT This pin is shorted to PIN 5 (ground) if the batteries have been discharged to such an extent that the remaining stored energy time is less than 2 minutes. (NORMALLY OPEN)
9 Battery Mode OUT The connection between this pin and PIN 5 (ground) is disconnected if the main power supply fails oe is out of tolerance. (NORMALLY CLOSED)

Note: Direction is relative to UPS.

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Source(s): Hardware Book
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