Omnicron Electronics - Professional Voice Logging Recorders and Accessories - since 1975 
 Professional Voice Logging Recorders  and  Accessories


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Omnicron Electronics - Professional Voice Logging Recorders and Accessories - since 1975


TSA-3 Telephone Supervisory Adapter photo

The TSA-3 is used to provide a simple and inexpensive method of connecting supervisory monitoring equipment to the handset circuit of a telephone. It is usable on most telephone styles which have a standard modular handset or headset jack.
The TSA-3 is supplied with cables and connectors which have been wired to meet most standard applications. It can be customized to meet unusual requirements. Consult your place of purchase if cables are required with non-standard lengths, connections, or circuitry. On the back of this instruction sheet is a drawing that shows a typical installation.
1. Unplug the handset cord from your telephone set and plug it into one of the two jacks on the TSA-3 adapter.
2. Using the short cable which was supplied with the TSA-3, plug one end of the cable into the handset jack on your phone and the other end of the cable into the remaining jack on the TSA-3. Your telephone should now function normally as you have simply connected a short extension into the handset cord.
3. The TSA-3 can now be connected to your supervisory equipment (voice logging recorder, isolated monitor amplifier, etc.). Normally the center two wires on the handset jack are the earpiece circuit. The TSA-3 has a six foot cable which connects to this circuit. It can be used to feed audio to the LINE or AUXILIARY (AUX) input of your recorder so that both sides of all conversations on the handset can be monitored. If your telephone does not use standard connections, the plug may have to be re-wired so that the recorder is connected to the correct wires.
If your monitoring equipment interferes with the operation of your phone in any way, or if your monitoring equipment is not designed to be connected to your telephone in this manner, a different means of interconnection may be required.
4. Locate a convenient spot on your phone to mount the TSA-3. Insure that there is enough slack in the cables so that they can be easily unplugged, if required, and that it will not interfere with the operation of the phone. Use the double stick foam tape and cable ties which are included with each TSA-3 to attach it to your phone.

Typical TSA-3 installation drawing



                          Prevent costly mistakes - record all important phone and two-way radio conversations. Compact, economical recorders that document every word of your important conversations.       
                                   OMNICRON ELECTRONICS
                        554 Liberty Highway Unit 2, Putnam, CT  06260   

(860) 928-0377

(860) 928-6477


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