11-10-2012 09:52 AM - edited 03-16-2019 02:07 PM
I install gas correctors with modems that have traditionally communicated over a POTS line. With most businesses going voip we are having difficulty communicating with devices even with the cisco 186 & 187 ATA boxes. The apparent problem is low current (miiliamps). The manufacter of the corrector (Mercury-Honeywell) requires 23 to 35 milliamps and the reading I get out of the cisco box is 8-9 milliamps. Is this typical. I am not an IT person just a tech for a utility trying to fix a problem without having the customer installing a POTS line. Thanks. Rob
Solved! Go to Solution.
11-10-2012 10:20 AM
The ATA should be providing 25 mA loop curent:
If that is not enough, you can try a loop current booster like
http://www.sandman.com/longloop.html
Measuring the loop current is a problem in itself, see article about it on the same site.
You can also look at a VG202, again with 25 mA of loop current:
Finally, for an high loop current device, you can use the VIC3-2FXS-E/DID
This has to be used within a router.
11-10-2012 10:20 AM
The ATA should be providing 25 mA loop curent:
If that is not enough, you can try a loop current booster like
http://www.sandman.com/longloop.html
Measuring the loop current is a problem in itself, see article about it on the same site.
You can also look at a VG202, again with 25 mA of loop current:
Finally, for an high loop current device, you can use the VIC3-2FXS-E/DID
This has to be used within a router.
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