Product manual

Installation instructions, BS330 base station
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
65
Fig. 35 BS330 base station
16.2 Base station cabling
The base station cable must be a twisted pair cable, with 2 pairs minimum for connection of the data
lines. Also power can be distributed via these data pairs. Use minimum 26 AWG copper conductors.
A three-pair cable may be used when additional power wires (EPP) are required to increase the
distance between base station and radio exchange. If more EPP wires are necessary they can be
connected to the EPP pins of the second data/power connector, or they can be connected to one
connector when using a screw-to-RJ45 adapter.
Data lines of the same twisted pair may be interchanged. For instance SC0-a and SC0-b (see figure
40) may be interchanged. Also the EPP pair is insensitive for polarity reversal. Data pairs may not be
interchanged.
It is assumed that service personnel know how to crimp these connectors to a cable.
Do not power the base station via the EPP terminals from a local power source and the radio exchange
simultaneously. As the two EPP inputs of the base station are interconnected in the base station, the
two power sources would be interconnected (see figure
36). However, the base station can be powered
via the data pairs from the radio exchange and the local power source simultaneously because they
are interconnected via a rectifier.
Factory testing
(RJ12)
Data/
power
(RJ45)
Data/
power
(RJ45)
Front view Back view
LED1
LED2
037