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Technical Overview 

Installation

 

The site survey receiver is used in conjunction with the Son-
tay

®

 

RF-PS522

 site survey routers, 

RF-HHT

 hand-held 

monitor and 

RF-TS911

 nodes, which form a site survey kit 

(SSK). 
 
Routers are used to route signals from battery powered 
nodes and other routers to the receiver module, where the 
signal strength of a direct path is not sufficient for reliable 
communications. 
 
Data is transmitted back to the receiver at configurable time 
intervals, or on a configurable change in measured value. 
Each sensor retains these configurations if the battery be-
comes discharged or requires replacement. 
 
The SSK receiver automatically selects which of the 16 
transmission channels available gives the best radio network 
performance, taking into account both signal strength and 
interference levels from adjacent channels and equipment 
(such as Wi-Fi etc.) 
 
The SSK hand-held monitor, nodes and routers automatically 
find the best path back to the receiver, which may be direct-
ly to the receiver or via “parent” routers. 
 

NB 

Unlike an 

RF-RX20 

or 

RF-RX40

 system receiver, 

the 

SSK receiver has no analogue outputs. 
 

Power 
 

The SSK receiver uses an internal 12Vdc NiMH battery. Ob-
serve power connections polarity. 
 
 
 
 

1. 

Remove all packaging from the SSK receiver 

2. 

Note the MAC address printed on the affixed label. 

3. 

Mount the SSK receiver in the same position as the 
system receiver will be mounted during the final 
installation. 

4. 

Ensure the antenna is positioned in a vertical align-
ment. 

5. 

Ensure that the internal battery is fully charged. 

6. 

To power the SSK receiver, turn the On/Off switch 
on the housing cover so that it points downwards 
towards the charging socket. To switch off, turn the 
On/Off switch on the housing cover so that it points 
upwards away from the charging socket.  

 

Battery Charging 
 

To charge the battery in an SSK receiver, connect the cor-
rect charger to the socket mounted underneath the On/Off 
switch. The status LED on the charger will show red until the 
battery is fully charged, when the status LED will turn green. 
 
Note that when charging SSK batteries, the battery under 
charge is disconnected from the rest of the device, and 
therefore that device will not function until charging is com-
plete. 

 
 
Battery Fitting and Replacement 
 
NB 

It is recommended that only suitably trained personnel 

are used to replace the battery in the SSK receiver. A special 
tool is required to disassemble the case and the battery 
requires soldering. 
 
When a battery is replaced, observe the correct polarity. 

Fitting the battery incorrectly may result in perma-
nent damage to the sensor

.  

 
The case of the SSK receiver must be disassembled to gain 
access to the internal battery. 
 

NB 

NiMH batteries are rechargeable, but care must be taken to use 

ONLY THE 

CHARGER SUPPLIED IN THE SSK BY SONTAY

.

 

Replacements or spares 

should be stored in a clean, cool (not exc30°C), dry and ventilated 
area. 
 

Disposal of Batteries - Warning! Fire, Explosion and Burn Hazard. 

 
Do not short-circuit, crush, disassemble, heat above 100°C (212°F), incinerate, 
or expose the battery contents to water. Do not solder directly to the cell. 
 
All batteries must be disposed of in accordance with EC Directive 2006/66/EC, 
amended by EU Directive 2008/12/EC. 

UK Sales Tel: 0845 345 7253 

International Tel: +44 1732 861225 

Page 1 of 3 

RF-RXSS 

Issue: 1.0 

Date Of Issue: 01/07/2010 

© 2008 Sontay

®

 Limited. All rights reserved.

 

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