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What are the diffenrences between ATM4 and ATM4U?
- Thread starter KaztarT
- Start date
intrigrant
Systems Engineer
One character?
the docs say:
Analog Trunk Card Universal (ATM4U)
This card supersedes the previous Analog Trunk cards and is referred to as the "ATM4U". It can be identified by a label on the base of the card.
The card is supported on IP Office software 2.1(36) and higher. Unlike the previous ATM4 card, the same ATM4U card variant can be used in all locales.
For systems running IP Office software 3.1 or higher, the echo cancellation used on each trunk can be switched off or on (16ms).
The card provides 4 RJ45 sockets for analog trunk connections. The card only supports loop-start trunks. For ground-start trunks an Analog Trunk expansion module should be used.
Power Failure Operation
There are no power failure extension connections provided for the analog trunk card. If this is a requirement, the ATM16 expansion module should be used.
WARNING
In all IP Office installations, any module or control unit using analog trunk connections must be connected to a functional earth.
WARNING
Within the Republic of South Africa and in areas of high lightning risk, any module or control unit using analog trunk connections must be connected to a protective ground and to surge protection equipment (an Avaya 146G Surge Protector).
the docs say:
Analog Trunk Card Universal (ATM4U)
This card supersedes the previous Analog Trunk cards and is referred to as the "ATM4U". It can be identified by a label on the base of the card.
The card is supported on IP Office software 2.1(36) and higher. Unlike the previous ATM4 card, the same ATM4U card variant can be used in all locales.
For systems running IP Office software 3.1 or higher, the echo cancellation used on each trunk can be switched off or on (16ms).
The card provides 4 RJ45 sockets for analog trunk connections. The card only supports loop-start trunks. For ground-start trunks an Analog Trunk expansion module should be used.
Power Failure Operation
There are no power failure extension connections provided for the analog trunk card. If this is a requirement, the ATM16 expansion module should be used.
WARNING
In all IP Office installations, any module or control unit using analog trunk connections must be connected to a functional earth.
WARNING
Within the Republic of South Africa and in areas of high lightning risk, any module or control unit using analog trunk connections must be connected to a protective ground and to surge protection equipment (an Avaya 146G Surge Protector).
WARNING
In all IP Office installations, any module or control unit using analog trunk connections must be connected to a functional earth."
That is just too funny not to comment on. I think I'll print that page in the documentation and use it as my universal excuse when something doesn't work.
In all IP Office installations, any module or control unit using analog trunk connections must be connected to a functional earth."
That is just too funny not to comment on. I think I'll print that page in the documentation and use it as my universal excuse when something doesn't work.
hey, we do not provide a tested and validated earth ground for the system, so we do have to use that valid documentation. we require the customer to provide that environmental condition contractualy. we will run a wire if they do not, but we do not relieve them of their obligation to proivide it. we do our best and run to a cold water pipe, or structural steel, but that is not always a good earth ground, so we cover ourselves by requiring the customer to provide contractualy.
unless you have the meters to test it, you do not know if it is an earth ground, so have an electrician do it. one piece of pvc used in plumbing negates the earth ground quality of a cold water pipe, or in old buildings, if the cold water pipe is disconnected from the plumbing and capped off between you and the ground.
if you provide it, test it, if you do not test it, do not provide it, unless you document that you are not liable for the validity of the earth ground.
You do not always get what you pay for, but you never get what you do not pay for.
unless you have the meters to test it, you do not know if it is an earth ground, so have an electrician do it. one piece of pvc used in plumbing negates the earth ground quality of a cold water pipe, or in old buildings, if the cold water pipe is disconnected from the plumbing and capped off between you and the ground.
if you provide it, test it, if you do not test it, do not provide it, unless you document that you are not liable for the validity of the earth ground.
You do not always get what you pay for, but you never get what you do not pay for.
Your point is a very good one but, I should have been more clear. It was the "functional earth" instead of "functional earth ground" that made me laugh. "Sorry, according to Avaya's official documentation as long as the planet's screwed up I can't guarantee anything.
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