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Power failure trans 3

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papagigo1

Technical User
Apr 30, 2004
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I need to come up with a way of transfering 24 digital phones to service from another switch in the event of a power failure.
Does anyone make a transfer switch that large?

Mike in NH
 
Since digital phones are "hard wired", there would be no easy way to do that.

The only way that I can think of is if you had the "b" jack already wired to the "other" switch and have them already programmed (if you have a "b" jack). The user would just move their phone to the "b" jack to activate the "backup" station.

Good luck...

Thanks,

Wildcard

 
Prewire both primary and secondary ports to a designated block and use bridging clips to swing the lines over. In normal mode the bridging clips would connect the station to the left side of block where the primary port connections are punched down. When the primary PBX goes away you move the bridging clips to the right side of the block where the secondary port connections are punched down. The station wires are punched down on a center strip allowing bridging either side.

Remember to have a flashlight handy in case you have to move the clips in the dark.

Sorta strange to have requirement for phones at all times and no UPS.

Please think about the fact that your number plan may not exist in both PBXs and/or that your trunking may not support phones supported by two PBXs. Not an issue for outbound only calls.
 
Thanks for the ideas, and your right about "sorta strange to need this requirement" but we lost the fiber from Verizon and it left the switch standing with no T1's or CO lines.

Thanks again,

Mike in NH
 
So this was not a power failure scenario.
That makes things different.
If you have 2 switchs (for whatever reaason)
and you have them connected to different providors.
And the thing you want is to be able to swap them should you loose a providor. You should have the switchs tied together...
 
Bobg1,

No, this was not a power problem. We lost all our Verizon services including the T1 that is used for the LAN/QSIG.
We do have all our switches tied together using QSIG over our INTRANET, the fiber failure at this location took out 20 T1's and the switch had no outgoing service at all. We have a 300 pair copper cable between this facility and another G3si V12,(about 600 feet away). Both switches are a match system with a different DID range but the same type sets (64xx). I'm looking for an easy way of activating 25 phones with two wire digital dial tone over the cooper from the other G3si.

Mike in NH
 
Use an rj21 block with a 25 pair connector from each switch. Hard wire your stations to the rj21 block. then its just a matter of pluging in the cable from the switch you want to use. About a 30 second job. Of course the numbers would be different for the stations depending on whitch switch you are using.
 
papagigo1,

isn't it easier to set up a couple of t1 tie trunks between these switches over that copper cable? you could even have emergency rerouting from verizon over to that remote switch, for it to tandem calls over tie trunks. all automatic and instantaneous. no?
 
dwalin,

That sound like a good solution!!
I could add two T1's, using the copper, to a new Trunk-Group, and add it to the route patterns.

Is this what you mean?

Mike in NH
 
papagigo1,

yep, exactly. not necessary two t1's, you can use whatever number you need -- one, two, ten depends on how many channels you want to have for emergency rerouting. if you're running a large call center (and twenty t1's suggest this) you should seriously consider having an alternative trunk feed for emergencies like that.
 
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