REDNET

RN4-10-25
RN4-25-75
RN4-75-150

Infrared Photoelectric Beam

The Rednet Series of photobeams is a range of active infrared detectors designed to combine high levels of intruder detection with a low potential for false activation.
The system utilises the infrared transmission to synchronise transmitters and receivers and removes the need for hardwire synchronisation cables between towers.

RN4 systems feature four high power transmitters and four receivers. Uniquely, each transmitter operates to all receivers and all receivers are operated by all transmitters. This combination creates a sixteen beam path ‘net’ which is difficult to compromise.

FEATURES

Sixteen active beams
Graded alarm responses
No hardwire synchronisation
Integral head heaters
Modular system design
Field adjustable detection levels
Up to 150m outdoor range
Alignment tester included
Fog detection circuitry

SYSTEM DESIGN

The Rednet system is simple to design and install as it is modular and has just five main components.
To design a system, simply decide where the towers are to be positioned and measure the distance between these points. Choose the wall (RNW 175) or free-standing (RNT 175) towers and select the correct beam set for the distances between them. Towers come complete with all fixings and the electronics include heaters, thermostats, fixings and alignment aids.

BEAM HEAD

The Rednet beam head contains a folded optical array to combine a long focal length with small head size.
This creates narrow transmission and receiving angles to maximise performance.
The heads also contain their own heater to ensure that the maximum amount of energy is directed to the section of the tower the beams operate in.

BEAM SETS INCLUDE

Heaters
Thermostats
Four Transmitters pre-wired to transmitter controller
Four Receivers pre-wired to receiver controller
RN Tester
Optical alignment viewer
Blanking plates
Tamper Switch and Fixing Kit

BEAM CONFIGURATION

SPECIFICATIONS

Model	NR4-10-25	NR4-25-75	NR4-75-150
Detection method	Infrared Beam Interruption Detection
Detection range	10m -25m	25m - 75m	75m - 150m
Power supply	12V DC (11 - 15V DC)
Power supply (heater)	10 - 15V AC/DC
Current consumption	Trasmitter: 40mA (max.) at 12V DC Receiver: 60mA (max.) at 12V DC
Synchronous wiring	No synchronous wiring required
Operating temperature	-25°C to +50°C
Heating system	Integral thermostat below + 15 deg. C
User controls	Single beam response switch Single/Dual Response control potentiometer 120mSec - 1500mSec Fog level control potentiometer light - heavy (other control factory sealed)
System alarm response (interruption period)	1) 40mSec any 2 blocked 2) 120mSec to 1500mSec any 1 blocked 3) No alarm, nay 1 blocked
Alarm output	Form C (cnange-over) relay contacts 24V DC 1A
Fog output	Form C relay contacts 24V DC 1A
Tamer switch	N.C. opens when tower cover remoced 28V DC 0.1A
Indication	Singal strenth, alarm & fog LEDs

＊ Specifications and design are subject to change without prior notice.

DIMENSIONS

Dimensions vary depending on tilt of head.

OPTIONS

RNT175	1.75m Free Standing Double Sided Tower
RNW175	1.75m Wall Mount Tower
RNBB	Base Bracket for RNT 175
RNTT	Anti-Climb Top Tamper for RNT 175
RNFAN	Ventilation fans for RNT175
RNPK	Pole Mount Bracket for RNW 175 (48mm dia)
CVS1	240 V AC - 12 V DC 1 amp Power Supply
CVSR3	240 V AC - 12 V DC 750 mA Power Supply/Charger
IR2000 B8/L	Replacement Acryllic Cover