At 6/3/2010 07:16, you wrote:
>Hi Scott,
>
>Many controllers have pullup resistors on their COR inputs so that they
>can be driven from open collector or relay contact COR outputs. With that
>arrangement, if the controller is configured for active high and the COR
>line is disconnected, the co
works because the pullup resistor in the unplugged open
circuit looks like an idle signal...
- Original Message -
From: scott w
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, June 03, 2010 3:55 AM
Subject: [Repeater-Builder] active low COR
Hello to gr
O Box 1546
LaPorte, CO 80535-1546
970-416-6505 phone
970-419-3222 fax
www.scomcontrollers.com
-Original Message-
From: scott w
To: Repeater-Builder@yahoogroups.com
Sent: Thu, Jun 3, 2010 2:55 am
Subject: [Repeater-Builder] active low COR
Hello to group,
What is the advantage
I prefer active high for just the reason that you described. I usually
fuse my equipment individually, so a blown fuse in the receiver can
cause an active low to be sent to the controller, thereby keying the
transmitter. If I do use active low, I put a pull-up resistor in the
controller and t
Hello to group,
What is the advantage of an active low COR.
Most I have talked to say they have their controllers set that way, so I set
mine that way,plus the Maxtrac I am using as a receiver default is active low.
I simulated a power failure to the reciever and the line went low and the
trans
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