Emergency Transfer Panel

mixjsls · October 10th, 2005, 06:50 PM

Hi there,

Is it possible to have 3 Emergency Transfer Panels in a g650 Port network? for a total of 15 analog emergency stations - PSTN trunks?
I am just looking for Emergency transfer only in case of power failure.

If this is possible can you ellaborate what are considerations to be taken in this scenario?

Thanks for any help on this

Thanks

Mixjlsl

phones329 · November 7th, 2005, 01:40 PM

To my knowledge yes you can. Of course you would need two TN747B c.o. trunk boards, then the three Emergency transfer panels, wired up correctly. Now since the g650 does not provide the needed 48vdc power to keep the panels up like in the old si cabinets, (no aux cable) you will need to have three external power supplies to support the transfer panels. You can use the same power block that the old 7400 phones used, or even an 1151 power brick.

happyhammer · November 15th, 2005, 07:29 AM

the IPSI card provides power for the ETP

phones329 · November 15th, 2005, 09:50 AM

Really? how do you do that?

happyhammer · November 16th, 2005, 09:42 AM

via the 9-pin connector on the rear adapter.

It was done by our business partner, they made REAL sure they got the pinouts correct so not to risk any damage to the IPSI.

October 10th, 2005, 06:50 PM	#1 (permalink)
mixjsls Join Date: Jan 2005 Posts: 5	Emergency Transfer Panel Hi there, Is it possible to have 3 Emergency Transfer Panels in a g650 Port network? for a total of 15 analog emergency stations - PSTN trunks? I am just looking for Emergency transfer only in case of power failure. If this is possible can you ellaborate what are considerations to be taken in this scenario? Thanks for any help on this Thanks Mixjlsl

November 7th, 2005, 01:40 PM	#2 (permalink)
phones329 PBXtech SILVER 25+ posts Join Date: Jul 2003 Posts: 59	Re: Emergency Transfer Panel To my knowledge yes you can. Of course you would need two TN747B c.o. trunk boards, then the three Emergency transfer panels, wired up correctly. Now since the g650 does not provide the needed 48vdc power to keep the panels up like in the old si cabinets, (no aux cable) you will need to have three external power supplies to support the transfer panels. You can use the same power block that the old 7400 phones used, or even an 1151 power brick.

November 15th, 2005, 07:29 AM	#3 (permalink)
happyhammer PBXtech SILVER 25+ posts Join Date: Jul 2004 Posts: 39	Re: Emergency Transfer Panel the IPSI card provides power for the ETP

November 15th, 2005, 09:50 AM	#4 (permalink)
phones329 PBXtech SILVER 25+ posts Join Date: Jul 2003 Posts: 59	Re: Emergency Transfer Panel Really? how do you do that?

November 16th, 2005, 09:42 AM	#5 (permalink)
happyhammer PBXtech SILVER 25+ posts Join Date: Jul 2004 Posts: 39	Re: Emergency Transfer Panel via the 9-pin connector on the rear adapter. It was done by our business partner, they made REAL sure they got the pinouts correct so not to risk any damage to the IPSI.

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