Add a second 7i73 >> solved<<

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05 Feb 2021 19:19 #197766 by tecno
Add a second 7i73 was created by tecno
Is it possible to daisy-chain a second 7i73 to already installed 7i73 ?

First one is in mode 1 and second needs to be mode 2

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05 Feb 2021 21:43 #197782 by PCW
Replied by PCW on topic Add a second 7i73
You would need an additional RS-422 interface

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05 Feb 2021 22:31 #197787 by tecno
Replied by tecno on topic Add a second 7i73
Can this interface be close to the other 7i73 = rj45 to interface and 2 new cables to 7i73's

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06 Feb 2021 01:36 #197801 by PCW
Replied by PCW on topic Add a second 7i73
Not sure I understand what you mean

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06 Feb 2021 09:41 #197816 by tecno
Replied by tecno on topic Add a second 7i73
7i76e + CAT6 (~5m difficult to add another) to 7i73 located in monitor stand.

So can I place RS-422 interface in monitor stand moving RJ45 to interface and add two new cables to each 7i73.

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06 Feb 2021 11:26 #197824 by rodw
Replied by rodw on topic Add a second 7i73
You need to add another board to one of the 25 pin connectors that has a RS422 interface...

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06 Feb 2021 12:06 #197826 by bevins
Replied by bevins on topic Add a second 7i73
Put a 7i74 then you can add up to 8 more cards via rs422, 7i73 being one option i believe. I use it alot for adding tons of I/O.

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06 Feb 2021 12:08 #197827 by tecno
Replied by tecno on topic Add a second 7i73
Rod/bevis are you saying that it must be connected to 7i76e P1 as P2 is occupied by 7i85s?

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06 Feb 2021 12:21 - 06 Feb 2021 12:22 #197829 by bevins
Replied by bevins on topic Add a second 7i73

tecno wrote: Rod/bevis are you saying that it must be connected to 7i76e P1 as P2 is occupied by 7i85s?


One of the free ports. But you cannot connect it directly to one of those. Your existing 7i73 i assume is connected to the only rs422 port on the 7i76e so thats why you need the 7i74 if you want to connect more rs422 boards. 7i73 has a rs422 interface, so you need a card that has rs422 interface.
The ports are smart serial, so a 7i74 is an rs422 distribution card that you can put 8 rs422 devices on.

I am sure there are other ways to skin the cat, but i think this is the easiest and most versatile.
Last edit: 06 Feb 2021 12:22 by bevins.

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06 Feb 2021 12:44 #197833 by tecno
Replied by tecno on topic Add a second 7i73
OK thanks.

This will be a bit expensive and also PITA to install a new CAT cable.

Will try to get the PoKeys55 to work.

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