jotron Phontech BTS 4000, Documentation Handbook, Page: 11 / 52

Doc.No.: 08400-006-DE
Page 9 of 19
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3.6. PLUG-IN RELAY MODULE (BRD 99400-011)
A relay module for activation of external signal device can be installed in the betteryless
telephones: 4040 / 4050 / 4051 / 4060 / 4061
The relay module is to be mounted by the installer. The unit is delivered separately, and is to be
plugged into the appropriate telephone unit.
•
Open the backbox on the telephone unit.
•
Plug the relay unit into the receptacle on the PCB inside the telephone. Make sure the
connector pins make contact.
•
Snap the stand off`s (2pcs) into the holes in the PCB.
•
Make the connections according to the installation drawings 99400-017-EC or 99400-018-
EC.
•
If DC voltage is used, make sure the polarity is correct. (Indication on the dwgs. 99400-
017-EC and 99400-018-EC)
4. LIST OF FACILITIES
4.1. BATTERYLESS AMPLIFIERT UNIT, TYPE 4000
- Interface for up to 24 batteryless telephones
- Extreme low current drain speech amplifier.
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