Silly Ground Question 3

[DaveThePhoneDoctor]

Partner ACS: Is the power line cord enough ground for the system? If not why then do I need to attach a ground to the Proc. module?

Dave,
The Phone Doctor
Las Vegas, NV USA

"You're Never Alone When You're Near A Phone!"

...Lily Tomlin
a/k/a "Ernestine

 

[skip555]

if the manufacturer provides a ground lug I always use it

 

[Dexman]

I remember a post maybe a year ago that discussed grounding methods for Avaya telephone systems.

I think the post said that it was better to ground the unit to the metal AC outlet box as opposed to building steel. The tech found a difference in electrical potential between the building steel and electrical ground and it was enough to damage some traces in Partner ACS processors.

 

[DaveThePhoneDoctor]

Got ground wire and will install it tonight. I plan to connect it to the wall outlet ground with a twist nut.

What is the best direction to install the ground wire to the Proc. card. From the back of the carrier or front is there a ground wire access port inside of the carrier itself? I want to make sure it is installed secure.

Looks like it is a pain to have to screw and unscrew each time you instlal a proc. card.

Dave,
The Phone Doctor
Las Vegas, NV USA

"You're Never Alone When You're Near A Phone!"

...Lily Tomlin
a/k/a "Ernestine

 

[DaveThePhoneDoctor]

BTW, since I am not a enpert on electrical, what can happen to a system like Partner if it is not properly grounded or not grounded at all?

Dave,
The Phone Doctor
Las Vegas, NV USA

"You're Never Alone When You're Near A Phone!"

...Lily Tomlin
a/k/a "Ernestine

 

[Dexman]

Well, grounding is done for several reasons. One of them would be to protect people from getting shocked if the system experiences a power surge.

I'm still looking to find the post that discussed the ground to the outlet instead of building steel. I'll post the link if I can find it.

 

[Dexman]

Found it! Had to go back about 2 years to locate it. Hal Biss posted a detailed reply to a grounding question.

http://www.tek-tips.com/viewthread.cfm?qid=904184&page=46

 

[DaveThePhoneDoctor]

Thanks for looking that up for me. That was a very good understanding of grounds for my installations.

Dave,
The Phone Doctor
Las Vegas, NV USA

"You're Never Alone When You're Near A Phone!"

...Lily Tomlin
a/k/a "Ernestine

 

[aarenot]

We require the customer provide an earth ground at the system area. It is a contractual requirement in the environmental requirements. If they do not provide, we will ground it to the electrical conduit, but inform the customer that we are not responsible if they have an issue. We also request that they sign a release. In most cases they have an electrician provide a true earth ground wire from the electrical panel. We also contractualy require a dedicated circuit, with dedicated ground. The typical computer type circuit in most business settings.
We inform the customer that we can not verify, or certify the ground, and their electrician must provide and certify this. We also inform the customer failure to provide will have a negative effect an support, and warranty. Avaya can refuse support if the system is not grounded properly. It can also cause a myriad of issues if not grounded.

You do not always get what you pay for, but you never get what you do not pay for.