TLS-3B User’s Manual
40-400-00032, Rev. B
3
If the Power indicator is dark, no power is connected to the TLS-3B. If it lights, but
does not flicker, the TLS-3B’s internal processor is not working properly.
Line Jacks
Two Line connectors (RJ11 modular telephone jacks) are located on the front panel.
These connectors mate with the plugs on standard modular telephone cords.
Power Connector
The power connector requires a 24-volt DC power source. A 120-VAC 24-volt DC
power pack is supplied with the TLS-3B. Do not use the TLS-3B with a power pack
that supplies a different voltage. Use only with a Class 2 power supply!
HOW TO INSTALL THE TLS-3B
The TLS-3B works with analog loop start telephone sets only. It will not work with
ground start, proprietary, or digital phone sets.
Follow these steps to install the TLS-3B:
1. Plug the connector at the end of the power pack cable into the connector
on the rear panel of the TLS-3B.
2. Plug the power pack into a 120-volt AC wall outlet. The POWER
indicator will light.
3. Use a modular telephone cable to connect the telephones (or other devices
such as modems or fax machines) to the Line 1 and Line 2 connectors of
the TLS-3B.
4. Lift the handset of the telephone connected to Line 1. The Line 1 indicator
should light. Hang up and do the same thing for Line 2.
Warning:
The TLS-3B generates a 100-volt ringing signal. Keep your hands
away from the plugs at the end of modular cables plugged into the TLS-3B
when the other line is off hook.
Caution:
Do not try to connect the TLS-3B to the public telephone network.
Incoming ringing signals use voltages that can damage internal components in
the TLS-3B.
