Channel Vision TE-100 warranty Switch Positions, High Impedance Phones

Switch Positions

Chime ON-OFF:Doorbell operation.

Page/Door: When switched to Page, Door Strike #2 will lock and hold until # is pressed or hang up occurs.

Ring ON-OFF:Turns the phone ringing feature On or Off.

Chimes Duration: Allows you to increase or decrease the “ding dong” delay. Factory preset at the 9 o’clock position. Adjustment from 1 1/2 to 3 seconds.

Strike Adjustments: Factory preset at 1 second. Can be adjusted up to 3 seconds to match the requirements of the door strike being used.

High Impedance Phones:

Some phones draw very little current when used. These phones also produce an un- usually high level of speech. These two behaviors can cause a problem called "talk off." If the user speaks loudly or blows into the phone, it may disconnect from the talking mode and go back to dial tone. If this happens, you have a high impedance phone and need to move jumper JP-20 on the circuit board.

Chimes

9O’Clock

Strike

9 O’Clock

Phone Line Incoming Down Block Telephone Punch Out to Telephones

TELCO LINE INPUTS				HOUSE PHONE OUTPUTS				15 VDC
4	3	2	1	4	3	2	1	- +

TE-

JP-20 is located in the upper left side of the board and can be moved left and right. The default is in the right position for "normal" phones. Lift the jumper and place it across the two left pins. This should compensate for a high impedance phone. If there are other normal phones also connected to the line, JP-20 may have to be kept in the default position in order for all of the phones to ring correctly. Generally, when a high impedance phone is connected with a normal phone the "talk off" problem is

6	5	4	3	2	1
CHIMES		STRIKE 2		STRIKE 1

110VAC

Transformer Chimes

-+

DOORBELL

-+

SPEAKER

-+

PAGE OUT

100

improved.

CHIME

Please Note: High impedance telephones are typically the least expensive phones available. We recommend that all high impedance phones be replaced.

Strike	(not included)
+
-
Supply	12VDC Power

ICU Series Intercom Camera (not included) CVT 1UB/UHF-II