Aidcall Touchsafe Pro Installation Manual page 7

6. TCR INSTALLATION
SITE WIRING
TCR's require a power and data connection on a 2 pair bus cable. The data connection must be taken from
the RS485 Port on the Master Display Panel (ID 1) and is common to all TCR's (and AVI's) on the site. Up to
4 TCR's can be powered from a 12V DC 1A battery backed PSU.
Battery Backed
12V/1A PSU
Local
Mains Supply
Up to 32 TCR's can be fitted per site – these should be split over multiple power legs with a
maximum of 4 TCR's on 400 metres cable length per leg. The RS485 data must be connected in
one continuous leg from the Master Panel (ID 1) – cable length should not exceed 1200 metres.
TCR 1
Power Cable
4 TCR's can be powered per 12V/1A PSU ‐ max cable length 400 metres
TCR 2 TCR 3
Doc No. FM5565 issue B Page 7
TCR 4