National Communications Page 3
PRODUCT DESCRIPTION
Our intelligent and programmable Lock Control unit (LCU) is designed to
provideforTelephoneLinebasedDTMFcontrolledswitchingof1 or2internal
DryRelayContacts,whichcanbeusedtocontrol1ormoreexternaldevices.
TheyareidealforapplicationssuchasBasicAccessControl,LiftControlor
the Powering ON, OFF or RESET of One or More Electrical devices.
Model LCU1 - provides for control of 1 Dry Relay contact
ModelLCU2-providesforindependentcontrolof2DryRelaycontacts
Model LCU3 - provides Auto Answer operation with 2 Dry Relay contacts
TheRelayContactsarerated for 12volts, 1amp.
Our LCU units connect (in Parallel) to ANY Telephone Line and listen and
respondtoprogrammedDTMFTouchTonecommands.
EachLCUhasOne (LCU1)orTwo(LCU2)DryRelaycontacts thatcan be
independentlycontrolledbyDTMFTouchTonecommandsfromanIncoming
Telephone Call OR they can respond to Any Parallel telephone device
connected to the same line.
ModelLCU3also hasTwoDryRelay contactsandthisModelcan besetto
AnswerIncomingcallsafteraUserProgrammablenumberofrings(Seepage
5 for more details on LCU3).
One or More LCU units can be fitted to the same telephone line to provide
a simple and flexible Access Control or Power Control solution.
EachLCURelaycanbeprogrammedwithitsownuniqueDTMFcode(from
1-4digits)andwheneverthecorrectcodeisenteredfromAnytelephoneon
thatline,orfromanIncomingTelephoneCall,theappropriateRelaywillclose
foraUserProgrammableperiodoftime(programmablefrom1-99seconds).
LCU units connect to ANY telephone socket on a telephone line. Multiple
unitscanconnecttothesamesocket,ortheycanbeconnectedtodifferent
sockets on the same line.
LCU is supplied with a 12VAC power adaptor. 12VDC can alternatively
be used to power LCU if required (min of 200mA).