APC UPS ON RP3440

[Luk Vandenbussche]

I have a smartUPS 5000 connected to an rp3440.
I installed Powerchute Plus v4.2.3
I connected my cable to the port UPS on my splitter cable.
Which device file do I have to use to be able to communicate with my ups over RS232

[Slawomir Gora]

Hi,

I think that: /dev/tty0p1

[Luk Vandenbussche]

Can you also provide the minor and major number of the device file you are using

[Slawomir Gora · Accepted solution]

Hi,

try this:

crw--w--w- 1 bin bin 1 0x000100 Nov 5 2001 /dev/tty0p1

[Luk Vandenbussche]

This is not a valid tty for an rp3440

[Slawomir Gora]

Hi,
sorry but I think that on rp3440 you can try:

/dev/tty1p0
/dev/tty1p2
/dev/tty1p4

crw--w--w- 1 bin bin 1 0x010000 Jun 4 20:48 tty1p0
crw--w--w- 1 bin bin 1 0x010200 Jun 4 20:48 tty1p2
crw--w--w- 1 bin bin 1 0x010400 Jun 4 20:48 tty1p4

[Luk Vandenbussche]

I tried the three device files, the answer is still negative. Do you have a working config with an APC ups

[Slawomir Gora]

Hi,

are you sure you have correct cable ?
try plug loop-device in serial port and
use to check if it is working.

[Darren Prior]

Hi Luk,

Take a look at this document: KBRC00015367

regards,

Darren.

[Luk Vandenbussche]

DOC KBRC00015367 gives a device file, but not the minor and major number. This is important for the configuration.

I am using the smart signalling cable.

[Darren Prior]

Hi Luk,

The major number will be 1, for asio0 (check using lsdev | grep asio0.) Have you tried using insf to create the device file?

Have you tried the loopback method to check that the port works?

regards,

Darren.

[Luk Vandenbussche]

I used the following device file to solve the problem

crw--w--w- 1 bin bin 1 0x000000 Oct 12 14:01 /dev/tty0p0