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NOTE: There are no user serviceable 

components in this unit.  Please return 

the unit to K-Tech for repair.

 

!

INSTALLATION 
 

Remove larger 1” knockout(s) with a small tool, 

gently

 pushing inward from the      

outside of enclosure. Shimmy the metal tab back and forth until it completely snaps off. 
 
 
 
 
 
 
 
Push wire through side entry gap of strain relief provided. Adjust wire to desired length. 
Snap strain relief into knockout hole from outside the enclosure with slight pressure. 
 
Find a suitable mounting location near the RJ11C type modular jack (within the length 
of the included modular cord—12’).  

Be sure to locate the unit away from sources 

of AC noise such as lighting fixtures, conduits, or an elevator controller. 
 

1.  Mount the enclosure on a flat surface using the #10 screws provided. 
2.  Route the modular cord to the RJ11C type modular jack. Do not connect at this 

time. 

3.  Install the phone(s). 
4.  Refer to wiring diagram (pg. 2) and make all necessary connections. 
5.  Plug modular cord into the RJ11C modular jack. 
6.  Test the system. 

RECOMMENDED TELEPHONE LINE SPECIFICATIONS 

 

Line Voltage 

24 VDC (±3 VDC) on-hook voltage 

Loop Current

  30 mA minimum (lower current could cause low volume and           

misdialing) 
 

Compatible line types are standard analog, two-wire central office lines from the local 
telephone company or some internal PBX system. 
The telephone line will be assigned a telephone number which allows the called party 
to call back to the dialer and phones. Take care to note this number and supply it to 
the called party. 

K-TECH SUREcom Intercom Module – ET92A 

QUICK GUIDE AND INSTRUCTIONS 

TESTING 

 

1. 

Press the activating push-button of the emergency phone. Dial 

tone will be heard for a few seconds, then automatic dialing will 
commence.

 

 

2. 

After the phone call is connected, pick up the machine room/

lobby phone. The original call should be disconnected and the  
intercom module will connect the machine room/lobby phone.

 

Hang up the machine room/lobby phone, wait 2 seconds, and then 
pick up again to confirm it will call back.

 

 
Note: If multiple phones on a phone line, be sure to call into each 
phone separately. To confirm each phone is programmed         
correctly, select the ID code after the greeting message. 

 

Note: Make sure wiring does not interfere with components 

and keypad when finalizing installation.

 

1-800-993-9399 
860-489-9399 
860-489-4399 (Fax) 

K-Tech International 

56 Ella Grasso Ave 
Torrington  CT  06790

 

Complete warranty and repair information at: 

www.KTechOnline.com 

WIRING 

 
The incoming telephone line should be terminated with an RJ11 
type modular  ADA phone wiring should be minimum 20 AWG 
twisted/shielded wire if in an area of AC inductance or RF            
interference.

 

Pg. 1 

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