atcomsystems.ca/forum Forums Other TDM Phone Systems Executone-Isoetec Telephones & Systems Can't connect to 108 Com port

Without changing anything, one day I was able to log in to the system and the next day I couldn't. My programming computer is in a remote location from where the system is at, so I took my laptop up and plugged into it. Nothing happens when I hit ESC, but if I reboot the phone system with the Procomm window open, I'll get like a half a screen of random characters when it comes back up. I've tried both RS-232 ports. Any suggestions?

Thanks!

Check that the Baud rate on your computer is set at 9600 or what rate you were connecting before.

CBIPBX

Baud rate is the same. None of the settings have changed.

If some how the port got programmed as the operator port try pressing CTL O and see if it takes you out of that? Or use a modem and have someone transfer you to the system modem after calling the system and check the I/O port settings.
If need help remotely send PM

I've never messed with the system modem. How do you transfer to it?

Transfer 99 will transfer an outside call to the built in modem.If it's a 108 CPU then probably 1200 baud.

Check the connection from the 108 cabinet backplane and make sure the cable is securely plugged in. Random characters could indicate a baud rate mismatch.
Even if it was programmed as an Operator screen,hitting ESC would refresh that screen.Tells me that you have a connection problem,port issue or a baud rate issue.

That is a good suggestion from pvj the cable to the backplane may be loose. I've seen it more than once for sure!

Checked the connections. The port settings look OK, but still no luck. Do those port(s) go bad? I can't seem to get anything out of either one. I am able to dial into the modem.

Rarely but yes I have seen them go bad. You did check the cable going into the back plane like pvj mentioned correct that is a very common issue. Also is there one of those I/O protection units connected. If so you may want to try to route around that.
Like I mentioned if you want remote assist PM me with information and I'll take a look but it sounds like you already checked that remotely so I'm sure you know what to look for.

if you are able to get into the system via the modem. go to the "B" screen and in the middle right of the screen check your port settings. make sure port 1 or 2, installed is set to "Y",(they have been known to toggle off), XON for protocol and baud rate is at correct speed. If I recall, try toggling the SMDR from "N" to "Y" and back to get the port to spit out. AND hopefully your laptop is NOT using windows 7 with procomm plus to communicate.
Tj