06-06-2012 08:02 AM - edited 03-16-2019 11:31 AM
Is it possible to set the ring voltage on an VG20X FXS port to 70-75V ? Or on a VIC-FXS card? I am trying to interface to a Valcom V 9940 paging unit, and this is what the vendor suggests
Thanks
06-06-2012 09:40 AM
Hi Pete,
I have not heard of that requirement before The VG20x does not have any
adjustments for ring voltage. You could try the VIC3-2FXS/DID-E;
Features
• Mixed FXS and DID ports within the same VIC module
• Higher ringing voltage-65 Vrms (no load)
• Higher loop current 35 mA-to accommodate specialty phones
• Longer loop length-for loops with 26 AWG wire, up to 11,000 feet (3,400 meters)
• Device security-to distinguish between Cisco genuine and non-genuine Cisco modules
• Surge and Transient Protection per Network Equipment Building Standards (NEBS) (GR1089) Level 3 Type 1 and 3
Cheers!
Rob
"Show a little faith, there's magic in the night" - Springsteen
06-06-2012 10:02 AM
Pete,
I've done many Valcom integrations with Cisco gateways. I've always had success with a VIC2 and VIC3 FXS cards. I haven't tried it with a VIC card. I would doubt that the rinking voltage is the issue. HAve you hooked up a multimeter on AC Voltage during a ring cycle to test the voltage? I would try that. I think the issue is more likely the cable or you are connected to the wrong port on the Valcom unit. Some valcom units only work with FXO cards.
Brian
06-06-2012 01:03 PM
Thanks for the quick response. The ring voltage issue was suggested by Valcom TS, saying that at least 70-75v is needed.
I am connecting a v9940 to the fxo port. I get a fast busy, fwiw. I am not at the site, and wouldnt be able to hook a multimeter to measure ac voltage. perhaps I will try a fxs port, but it would be off a VG20X gateway
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