# UPS YUNTO P Series (250/500/750/1250)

(at the UPS)

9 PIN D-SUB FEMALE 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.

Contributor: | Joakim Ögren

Source: | ?

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Document last modified: 2002-01-10