Bell System _BSTL_ BS LX Intercom Handset Data Sheet BSTL

User Manual: Bell System _BSTL_ BS-LX Intercom Handset Data Sheet

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Bell System (BSTL) BS-LX

Terminals
I
R
O
T
Z
V
L

Call
Speech Out (Mic)
Common
Speech In (Speaker)
Lock
+ 12VDC
Door Contact

IMPORTANT NOTE :
1) Before replacing the handset make note of the wires to each terminal on the existing unit (an easy way
is to cut each core off leaving a piece of the insulation in place with colour visible) twist unused cores
together (so you know they are not used, do not short them out).
2) Some older systems will have cable with one coloured core and a solid white core in this case mark
each core with a marker or tape.
3) Some systems may have loop on wiring, you will have 2 cables into your handset (make sure any joins
remain, as these may be serving other flats on the system).
© 2010 www.intercomsrus.com

Setting Handset Up

Wiring Diagram
Single Entrance DC Call

Wiring Diagram
2 Entrance DC call with 59S Switcher

Wiring Diagram
2 Entrance System DC Call (M719S Switcher)
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Title                           : Microsoft Word - Bell System _BSTL_ BS-LX Intercom Handset Data Sheet.doc
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Create Date                     : 2011:06:26 14:46:41
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