Plantronics + Polycom. Now together as Poly Logo

Microphone not connected - Real Presence 500

Occasional Contributor

Microphone not connected - Real Presence 500

I have a problem with a Group 500 where the microphone has stopped working. I suspected a faluty cable, but it still doesnt work with a new cable.

The diagnostics show no microphone connected.


Any suggestions?


Bjarne Rasmussen



Message 1 of 3
Polycom Employee & Community Manager

Re: Microphone not connected - Real Presence 500

Hello Bjarne Rasmussen,

welcome to the Polycom Community.

It is possible, using Brute Force, to plug in the Walta Plug the wrong way around. Earlier Hardware revisions of the Group Series would blow a part and need RMA.


Newer Hardware revisions to my knowledge would not do this anymore but not knowing any details I am unable to make additional suggestions.


Please work with your Polycom reseller.

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

<======== Signature / Disclaimer ========>
Please be aware:For questions about the type of support to expect please check here

Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

Please remember, if you see a post that helped you , and it answers your question, please mark it as an "Accept as Solution".

The title Polycom Employee & Community Manager is an automatic setting within the community and any forum reply or post is based upon my personal experience and does not reflect the opinion or view of my employer.
Poly employee participation within this community is not mandatory and any post or FAQ article provided by myself is done either during my working hours or outside working hours, in my private time, and maybe answered on weekends, bank holidays or personal holidays.
Message 2 of 3
Polycom Employee & Moderator

Re: Microphone not connected - Real Presence 500

Please refer to the installation guide for the correct connection of the CLink cable to the codec and to the microphone arrays.

Message 3 of 3