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Forums > Professional > Crestron Control Systems
Re-use existing QM crescat for 8G system
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Topic:
Re-use existing QM crescat for 8G system
This thread has 4 replies. Displaying all posts.
Post 1 made on Saturday February 9, 2013 at 10:48
jmacdonald
Active Member
Joined:
Posts:		November 2006
695
I have a client that want's to swap out all the QM system installed in their class rooms and bring in some DM gear.

This client told me that crestron said that the QM cable can pass the 8G.

This way, all we need to do is unplug the RJ45 out of the QM and plug it in the DM units.

I'm worried that it would not work just because the 8G cable is High-bandwidth/low-crosstalk shielded 4-twisted pair and the QM cable is Low-skew CAT5e.

What are your thoughts on this.

TIA.
John / Simplevu
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[Link: simplevu.com]
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Post 2 made on Saturday February 9, 2013 at 11:24
kgossen
Super Member
Joined:
Posts:		March 2008
3,026
Just finished the DMC-E course and they say the DM 8G will work with regular Cat5e so shouldn't be a problem using the crescat unless it's longer than 300'.
"Quality isn't expensive, it's Priceless!"
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OP | Post 3 made on Saturday February 9, 2013 at 13:44
jmacdonald
Active Member
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Posts:		November 2006
695
thanks for the info. i feel safe going ahead with this project now.
John / Simplevu
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[Link: simplevu.com]
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Post 4 made on Monday February 11, 2013 at 08:36
SWOInstaller
Select Member
Joined:
Posts:		October 2010
1,596
On February 9, 2013 at 10:48, jmacdonald said...
I have a client that want's to swap out all the QM system installed in their class rooms and bring in some DM gear.

This client told me that crestron said that the QM cable can pass the 8G.

This way, all we need to do is unplug the RJ45 out of the QM and plug it in the DM units.

I'm worried that it would not work just because the 8G cable is High-bandwidth/low-crosstalk shielded 4-twisted pair and the QM cable is Low-skew CAT5e.

What are your thoughts on this.

TIA.

We have tested with both Cat5e and Cat6 without any problems. Although 8G would be ideal we haven't seen any problems using regular Cat5e/6
You can't fix stupid
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Post 5 made on Tuesday May 7, 2013 at 18:28
Vincent Delpino
Select Member
Joined:
Posts:		September 2004
1,818
The latest DM uses HdBaseT and can go 328 feet on Cat5e.
www.limelightsystems.com
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