Cisco SX20 mic maximum cable length

[Irshad Ali]

Hello There,

For the Cisco SX20 Mic - whats the maximum cable length that can be custom made?

Also can the SX20 mics be diasy chained?

Thanks

Irshad

[Enrico Conedera]

Hello Irshad -

We have an extension cable for this microphone: CAB-MIC20-EXT=   Extension Cable 10m, for CTS-QSC20-MIC, 3.5mm F to 3.5mm M   

The CTS-QSC20-Mic is used for SX20, C20, MX200/300, and can also be used with EX90.

If you choose to make your own extension for a longer cable, the maximum cable length depends, as always, on the type of cable you use to make the extension.  We have a reliable integrator who has made a 125 foot extension, and they used 22 gauge, 4 conductor, shielded audio cable.  The tricky thing there is to fit 22 gauge cable into those tiny 3.5mm connectors.  Remember to use TRRS connectors (4-pole) and observe the pinouts, which are listed in the C20 Administrator Guide.  Actually the cable will be straight-through, but you will want to understand the signals that are being sent.

On the SX20, you can use a maximum of two microphones.  These mics cannot be daisy-chained.

regards/

[lorenr123]

Enrico,

Can you refer your integrator to me for the 125 foot extension, and they used 22 gauge, 4 conductor, shielded audio cable?  We need this for our corporate executive conference room.  I would rather have someone make it who knows what they are doing than to wing it myself using pinouts, etc.