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
k
Up
lin
k
U
p
l
in
k
D
o
w
n
l
in
k
Do
wn
lin
k
Do
wn
lin
k
Walk Tester
Up
lin
k
Do
wn
lin
k
Up
lin
k
Do
wn
lin
k
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.