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LGMT434  Masthead Repeater Installation Handbook 

 

 

 

Page 9.

 

WALK TEST.   

With switch 12 down the Masthead will be in permanent WALK TEST 

Mode.   In other words, when an alarm event is received it will be re-transmitted back out 
so that it can be received on a WALK TEST Instrument or PAGER.   It is also  
possible to set the Masthead in WALK TEST Mode by sending a command via RS232 
from the LGRU64 control unit.   (See LGRU64 instructions). 
NB:    Do not leave the system in walk test mode as this uses a lot more air time and 
could cause a Call In problem on big systems. 

 
THIRD PARTY PRODUCT. 

   

Certain third party products are designed to work directly from the Mastheads RS232 
output without the need for the LGRU16 Control Interface.  Two of the most commonly 
used makes are listed below. 
Geovision 
Videoswitch 
 

Masthead 

Repeater 

Repeater 

RS232 to 
Control unit 

Up

 lin

Up

 lin

U

p

 l

in

k

 

D

o

w

n

 l

in

k

 

Do

wn

 lin

Do

wn

 lin

Walk Tester 

Up

 lin

Do

wn

 lin

Up

 lin

Do

wn

 lin

The Walk Test Instrument does not take any notice of Sub Net codes and will receive 
from anywhere on the site either directly from the Masthead or via Repeaters. 
All these products will be set to the same Site Code. 

 

Summary of Contents for LGMT434

Page 1: ...Masthead Masthead Repeater Repeater Installation Installation Handbook Handbook 2a BELLEVUE ROAD FRIERN BARNET LONDON N11 3ER Tel 0044 0 208 368 7887 Fax 0044 0 208 368 3952 Type LGMT434 V4 93 Issue 7...

Page 2: ...vise the carrier and or suppliers immediately Inspect the contents to confirm that all items are present and undamaged If any items are missing or damaged contact the supplier immediately It is advisa...

Page 3: ...3 Positioning the Masthead Repeater 4 Connecting to the relay control unit or compatible system 5 Antenna connection 5 Code Function switches explained 6 Switch setting tables 7 Walk Test Repeater mo...

Page 4: ...nt LGWT434 These devices will display the ID number and name of the PIR such as Main Gate etc The walk test unit shows additional information such as the PIR s battery status pulse count setting and s...

Page 5: ...Handbook Page 3 Masthead receives from PIR s and transmits to walk test instrument Fig 1 RS232 between Masthead and control unit Control unit provides alarm Walk Test PIR detectors transmit to masthe...

Page 6: ...t Check the web site for the latest list of compatible products Pass the fixing screws down through the screw tunnels on each of the four corners DO NOT drill extra holes in the product The cable glan...

Page 7: ...Connect a CAT5 twisted pair cable to the four terminals as shown in Fig 2 The four terminals are 0 volts 12 volts for the 12 volt supply and A B for the DATA Run this cable down to the relay unit LGR...

Page 8: ...icator SUB NET codes divide the site up into sections and are only needed if one or more repeaters are used If there are no repeaters leave the sub net codes at 1 All PIR s and repeaters on the site a...

Page 9: ...s been set The Sub Net Codes are set to the default setting of 1 EXAMPLE SWITCHES 1 2 3 4 5 SITE CODES 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ON 1 2 3 4...

Page 10: ...Reserved Relay 8 light sensor Relay 1 global output Repeater Walk Test Follow On Contacts Sub Net A must be the same as the PIR detectors Sub Net code that are intended to communicate with this repeat...

Page 11: ...ses a lot more air time and could cause a Call In problem on big systems THIRD PARTY PRODUCT Certain third party products are designed to work directly from the Mastheads RS232 output without the need...

Page 12: ...separate the system Fig 4 SUBNET 1 PIR PIR PIR PIR 1 Masthead MAST SYSTEM CONTROLLER KEY Fig 6 SUBNET 1 SUBNET 2 SUBNET 3 REP PIR PIR PIR PIR PIR PIR PIR REP MAST SYSTEM CONTROLLER 1 Masthead 2 Repea...

Page 13: ...decide on a different posi tion or install a repeater on the site NB In a majority of cases a repeater will not be necessary due to the exceptional transmission range from the PIR detectors to the Ma...

Page 14: ...he detector Connect a 12 volt battery to the mast head and proceed to walk about within the detection area The sounder will alert each time detection occurs This sounder will operate on any of the 64...

Page 15: ...ease the number of alarm outputs up to a maximum of 32 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 bo...

Page 16: ...s 12m Horizontal curtain LGWP12HC Masthead Repeater LGMT434 Masthead Relay Unit LGMRU4x4 Relay Expansion Module LGREM4x4 Walk Test Instrument LGWT434 16 way relay unit LGRU16 Relay module LGRM8 16 wa...

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