New CO , Mitel SX200 ground start problems
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Posted by BOB on February 20, 2008, 9:01 pm
Please log in for more thread options problems with our Mitel SX-200 ground start lines. Seems the SX-200 doesnt hold the ground start long enough for the new CO to recognize a call for dial tone. The SX-200 will pull a dial tone about 30 percent of the time. I dont see that the ground start timing is variable on the Mitel SX-200. I hope the CO can make some sort of accomodation. Anybody run into this kind of a problem on some of the newer CO switches they are installing around the country Id appreciate hearing what you were able to do about it. Bry | |||||||||||||
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Posted by DTC on February 20, 2008, 9:12 pm
Please log in for more thread options Try http://tinyurl.com/32cfde that points to: http://www.sundance-communications.com/cgi-bin/ultimatebb.cgi?/ubb/forum/f/6.html | |||||||||||||
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Posted by Rich Piehl on February 20, 2008, 11:37 pm
Please log in for more thread options BOB wrote:
> Recently our local CO installed a new switch. Now we are having
> problems with our Mitel SX-200 > ground start lines. Seems the SX-200 doesnt hold the ground start long > enough for the new CO to > recognize a call for dial tone. The SX-200 will pull a dial tone > about 30 percent of the time. I dont > see that the ground start timing is variable on the Mitel SX-200. I > hope the CO can make some > sort of accomodation. Anybody run into this kind of a problem on some > of the newer CO switches > they are installing around the country Id appreciate hearing what you > were able to do about it. > Bry Asking the obvious (because I've seen it before) are you sure when they replaced the switch all your ground start lines are still ground start and loop start lines for extraneous devices are still loop start. I've seen the telcos or clec bolix it up on those kinds of switches on more than one occasion. Take care, Rich God bless the USA -- That's one of the problems in this country The nuts don't know they're nuts. --Jeff Foxworthy | |||||||||||||
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Posted by BOB on February 21, 2008, 10:04 pm
Please log in for more thread options Thanks Rich,
Yes, I checked that. they are ground start and they will start manually but they need a good seems like a half second to ground in order to start. Thought current was a little low. Barely 20 ma start current and 15ma line current @ 7.9 volts when dial tone is established. Don't know what normal values should be. I never checked these parameters on the old CO. Im told the new CO is an EMS? Lucent Technologies Switch. >
> Asking the obvious (because I've seen it before) are you sure when they > replaced the switch all your ground start lines are still ground start > and loop start lines for extraneous devices are still loop start. I've > seen the telcos or clec bolix it up on those kinds of switches on more > than one occasion. > > Take care, > Rich > > God bless the USA > > -- > That's one of the problems in this country > The nuts don't know they're nuts. > > --Jeff Foxworthy | |||||||||||||
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Posted by Rich Piehl on February 21, 2008, 11:36 pm
Please log in for more thread options BOB wrote:
> Thanks Rich,
> Yes, I checked that. they are ground start and they will start > manually but they need a good seems like a half second to ground in > order to start. Thought current was a little low. Barely 20 ma start > current and 15ma line current @ 7.9 volts when dial tone is > established. Don't know > what normal values should be. I never checked these parameters on the > old CO. Im told the new > CO is an EMS? Lucent Technologies Switch. DMS 100, perhaps? Those values are a little low - are you a long way from the switch? I take it you have no timers om the Mitel to adjust the duration of the grounding? I'm not a Mitel person, but the larger switches I do know have an adjustment for that. Or have you played with all those till you're sick of 'em? Take care, Rich God bless the USA -- That's one of the problems in this country The nuts don't know they're nuts. --Jeff Foxworthy | |||||||||||||
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> problems with our Mitel SX-200
> ground start lines.