II. INSTALIATION
•
Simply connect the line connectors of two TLP97's with 2-conductor cable having core diameter of
approx 0.75mm or larger. Disregard polarity in wiring. Make connection of the cables by stripping the
insulation, and winding a plastic tape on the connected part. The accessory heat-shrink tubes may be
used to cover the spliced wires, by heating it with a heat-air blow, etc.
•
More than 2 units of TLP97 can be hooked up on the communication line. The headset type phone
F/AL can also be used in conjunction with TLP97. Note that when the number of phone sets connected
is around 6 or more, the signaling sound may get weaker. The self powered separate bell unit RB-1
(option) may be used in such instance. In case of one-to-one connection, cable length up to approx.
3km should allow operation with adequate buzzer/speech sound volume.
III. OPERATION
1. To start communication, press down CALL (grey) button, and calling signal is . transmitted to the other
party (at the same time you hear the buzzer sound from your handset also).
2. The other party, being signaled by the buzzer, responds to the call by also pressing CALL button.
3. Both parties then simultaneously press down TALK (black) button to commence conversation. While
the TALK button is pressed down at both ends, the conversation can be made in a manner just like an
ordinary telephone. Keep the button pressed down with enough strength.
Note: When more than 2 phone units are hooked up on the communication line, unique signaling code,
like pushing the switch two times, three times, etc. at a time, may be used so that the calling
station can be identified by the buzzer signal.
IV. CHANGING BATTERIES
When the battery power gets low, the buzzer sound will get weaker. To replace the batteries, unscrew the
mouth piece (3) and ear piece (4), and take out the transmitter capsule (6) and receiver capsule (7)
together with their connecting wires. Then remove two handset-cover-fixing screws (17) to take off the
cover. Remove chassis case (14) to replace the batteries with new ones, making sure the polarities are
correctly matched. Although the battery life depends on usage, they may last more than 6 months in
typical use.
2-wire Cable (Vinyl insulated)
Strip the insulation and wrap with vinyl tape
