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Joined: Nov 2012
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Can I hook an extension directly to pins 9 and 10 and get emergency siren? or is a relay needed?
Ty in advance
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Those are doorphone and doorphone relay for a lock.
Siren activates when?
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Joined: Nov 2012
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pins 9 and 10 on the viking ctg-1 sound alarm when shorted
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used to activate when ext 335 was called
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The CTG-1 install doc lists the following: Pin 12 Common. Pin 11 Yelp. Pin 10 Whoop. Pin 9 Ding Dong. Shorting pin 12 to any of those other pins will produce the associated sound.
To answer your question, which is a bit confusing, if you want the CTG-1 to make a sound when the phone is being called, you must use an Industry Standard single line port and a Viking LDB-2 or LDB-3 bridged on the extension's tip and ring and the normally open contact connected to pins 12 and either one of 11, 10 or 9.
Rcaman
Americom, Inc.
Where The Art And Science Of Communications Meet
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Joined: Nov 2012
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Thanks guys. The Ctg-1 I'm working with only has 10 pins. 9&10 shorted equals emergency tone. this is a new customer that claims this worked at one time and no other equipment was there. 335 is an analog port but didn't want to put ring voltage to pins 9&10.
Also to be noted I am new to the NEC system. Wasn't positve about the relay output.
TY
Last edited by tvanvickle; 07/27/14 03:04 AM.
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Joined: Nov 2012
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https://www.vikingelectronics.com/products/pdf/ctg-1%20(Sep%2000).pdf
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Do not terminate an s/l ext to pins 9-10. In the phone programming there should be an option to apply a N/O:N/C condition, triggered when ext 335 is dialed. You'll need to find the N/O:N/C pair from the system to terminate on the CTG1 pins 9-10.
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