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soosp
newbie
Topic Author
Posts: 29
Joined: Sat Oct 02, 2010 7:10 pm

APC UPS disappears at every reboot

Tue Jul 24, 2012 8:12 pm

Hi,

I just installed an APC Smart-UPS SC1000 by the supplied USB cable to an RB751U-2HnD device and by the following command:
> /system ups add alarm-setting=immediate disabled=no min-runtime=5m name=ups1 offline-time=5m port=usb1

It works well for the next reboot:
> /system ups print value-list

name: ups1
port: usb1
offline-time: 5m
min-runtime: 5m
alarm-setting: immediate
model: Smart-UPS SC1000
version: 737.3.I
serial: **********
manufacture-date: 01/19/11
load: 10%
on-line: yes
nominal-battery-voltage: 24V

But after reboot ups1 disappears and you can find the following messages in the log:
jan/02/1970 01:00:15 system,info router rebooted
jan/02/1970 01:00:16 ups,error cannot acquire port

After issuing the ups add command above the ups monitoring works well for the next reboot.
It seems that the ups subsystem starts up too early before the usb port starts up.

Thanks in advance,
Peter

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