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POLY GY500 CONTROL VIA RS232

 

Hello team,?
I have a poly G7500 that is/was being controlled via rs232 by a CP4.This was working fine. However, this stopped recently. On COM port 1 of the CP4 I can no longer receive feedback from the poly G7500.When I change to COM port 2, I occasionally get feedback from the G7500, however seems to be just to be random symbols. Kindly advise.
 

Make ?sure that the baud rate on your RS-232 ports match the baud rate set on the Poly.
 

The baud rate is currently set to 19200 on both devices.


On Wed, May 14, 2025, 18:45 Daygecko via <dylandot9=[email protected]> wrote:
Make ?sure that the baud rate on your RS-232 ports match the baud rate set on the Poly.
 

you can try with a test program you'll load into an unused slot, just stop and unregister the program currently talking to COM 1 and 2. then cross-connect ports 1 and 2, Rx to Tx and vice versa, and try sending some strings back and forth to see if they are getting through. I have so far seen a fair number of fried COM ports on controllers, so you may be looking at that.
also, check if the polycom had a firmware update pushed to it which disabled serial communication or messed with the parameters.

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