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Posted By: mfecko 7400 MISC card - 08/21/18 08:14 PM
We got in two new 7400 systems.
All is well with the systems.
We had forgot to order MISC cards
But we had 3 in stock from older 7400 systems
NONE of the misc daughterboards worked in the newer systems.

According to install manual, PT and PR come out on Pins 3 and 6 of MISC 2 connector
We assigned 361 ( page audio ) to zone 5 which should have outputted audio when we dialed 555

NG

And I can't believe all 3 MISC cards are bad
New systems are 4.95 and 5.01
MISC cards came out of 4.53 systems.

There are no model numbers or version numbers we can see, support says they ought to work.

Any help ?
Posted By: Biztel Cuban Okie Tech Re: 7400 MISC card - 08/27/18 03:27 PM
Which Misc port are you connecting it to? Have you tried adding 362 and 363 into zone 5 as well.
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