The Paging Interface is connected to the RS232 Pager Port on any Touchsafe Pro Nursecall panel.
Master and Slave Bases are wired from the Interface on a common RS485 Bus cable.
Additional Wireless Repeaters can be installed to further increase the radio range of each base cell.
Wireless Slaves can be used to make up to 5 hops from a Repeater.
The Interface, Master and Slave Bases all require a power connection from the 12V battery backed PSU.
Repeaters and Wireless Slaves require a local un-switched 13A mains socket only i.e. no data connection is
required.
• 1 PSU, 1 Interface and 1 Master Base is required as a minimum per site
• Up to 7 Slave Bases can be hardwired on an RS485 bus to provide extended radio coverage
• Up to 117 wireless Repeaters can be installed to further increase radio coverage
• Wireless Slaves link to a Repeater with a lower ID – the maximum number depends on arranging
same ID’s with non-overlapping coverage
• The Interface must be within 2 metres of a Touchsafe Pro Nursecall Panel
• The total length of the RS485 bus wiring should not exceed 600 metres (tested to 300m)
• The length of any one 12V DC power supply wiring leg should not exceed 100 metres
• Additional PSU’s will be required on large installations with multiple Slave Bases
RS485 BUS CABLE SPEC
The interface/master/slave RS485 bus should be wired using LSF (Low Smoke and Fume) 2 Pair 22AWG
individually screened pairs of data cable (Belden Type 8723 or equivalent).
This cable is available from Aidcall in 100m reels; Part No. YW1715.
Note Ref. Drain Wire…
The drain wire is NOT connected.
Do not cut-off, sufficient length
should be left during installation for
possible future use. Ensure the
un-used drain wire is well insulated.
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