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PHONTECH
o Recommended conductor area is 0.75 sq.mm.
o All cabling in the batteryless telephone system to be a separate network.
o DO NOT COMBINE WITH OTHER CABLES. THIS IS TO PREVENT
DISTURBANCE AND NOISE CAUSED BY INTERFERENCE.
• GLANDING.
The cables enter the units by means of cable glands. Where cable glands are not supplied from
factory, the installer must adapt the glands to the actual cable outer diameter. This is to obtain
the specified ingress protection.
• SCREENING.
The cable screen must be terminated to the ships GND in the "main unit" (4051/4061). The
cable screen must be connected through the junction box(s) and terminated in terminal no 21 or
earth stud in all telephones . Ref. drawings 99400-017-EC or 99400-018-EC.
• FERRULING.
The conductors to be ferruled prior to termination onto the screw terminals.
• MARKING.
Each cable to be marked with cable number.
Each conductor to be marked with the specific termination number.
Please note that Phontech uses plug-able screw terminals as standard. This is to make the
installation and service work as smooth as possible.
• FASTENING.
Where applicable, the cables and the conductors shall be strapped to the structure.
• PRESERVATION.
Prior to, during, and after completion of the installation the equipment surfaces to be protected
against acid holding fluids, pollution, moist, impacts etc.
This in order to avoid damaged equipment for which Phontech will void warranty claims.
• VOLUME ADJUSTMENT
Common volume adjustment for the whole system may be adjusted inside BTS 4061 on the
circuit board, R13. Adjust to "proper" audio level in the "earpiece" during a normal
conversation.
.
Handbook page
Doc.No.: 99400-000-DE
Page 11 of 14
14/43
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