LGWP-15/40/VC/HC Wireless PIR Detector Installation Handbook
Page 16
Types of Receivers (Transceivers)
The Genesis Masthead receivers are in actual fact transceivers meaning that they can
transmit as well as receive.
This feature enables them to act as a repeater to relay information on to another mast-
head and also send information to the walk test instrument.
There are currently three types of Masthead as follows:
Masthead Relay Unit
LGMRU4x4
The masthead relay unit does everything
that a masthead unit can do but also
provides 4 alarm and 4 tamper relay
outputs. A switch change converts the
product to an 8 alarm output without
tampers if required.
This model is primarily intended to connect
directly to a dome camera’s pre-set inputs
but may also be used to connect to DVR’s
and alarm systems where a smaller number
of relay outputs are required.
BNC socket
Standard
antenna
Cable gland
Auxilary
terminals
LED’s 1 & 2
*
*
*
*
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Alarm Contacts RS232 and Power
Top board
Bottom board
Masthead LGMT434
This masthead can be used it’s own as a
Repeater or can connect to a relay unit such as
the LGRU16. It will also interface directly with
some third party DVR’s and alarm systems
without the need for a relay unit.
The LGRU16 relay control unit will provide up to
16 relay alarm outputs together with 16 Tamper
relay outputs. Four of these units will provide
the maximum of 64 relay outputs.
BNC socket
BNC plug
Standard
antenna
Cable gland
12 volts In &
RS232 out
socket
LED’s 1 & 2
*
*
*
*
LGWP-15/40/VC/HC Wireless PIR Detector Installation Handbook
Page 5
Fig 1
Walk Test
Instrument
LGWP series
Wireless PIR detectors
Alarm panel or DVR
LGRU16
(Alarm Relay
Control Unit)
Connection to con-
trol Interface using
4 core alarm cable.
(RS232)
LGIP MT434
Masthead transceiver
(
Passes information to
control unit)
Up to 4 control units
may be connected
together to provide
up to 64 outputs.
Ethernet to the
world wide web.
Wireless Genesis System using LGRU16 to
interface to NVR’s, DVRs and Alarm Panels
This typical example shows how the wireless PIR detectors transmit to the LGMT434 Masthead
Receiver, which in turn passes the alarm information via a wired link to the Alarm Relay Control Unit
LGRU16 which monitors all the PIRs and reports missed call-ins, low battery conditions etc. The
LGMT434 Masthead Receiver is normally placed on the outside of the building where it can get the
best reception from the PIR transmitters
As standard the LGRU16 Alarm Relay Control Unit is supplied with 8 alarm and 8 tamper outputs. It
can be expanded up to 16 alarm and 16 tamper outputs by adding an extra module called an
LGRM8. These alarms are provided by relay contacts and will interface with virtually any alarm sys-
tem. LGRU16 control units can be connected together to provide up to 64 outputs.
Each alarm output comprises of five coloured ribbon wires. These are made up of common, normally
open and normally closed contacts for the alarm and a pair of normally closed contacts for the tam-
per.
Features:
Up to 64 detectors
per system
Full supervision from call-ins
Battery voltage monitoring
Easy relay interface to popular
makes of DVR and alarm panels
One tamper relay for each alarm relay
LED display for alarm events
