NatComm Telephone Line Monitor User manual

Telephone Line Monitor
USER GUIDE
For Technical Assistance
Please Phone: [phone]

Page 2 National Communications
DESCRIPTION
OurTelephoneLineMonitor(TLM)deviceisdesignedtoactivatewhenever
the Telephone Line that it is connected to has been disconnected or cut.
Theincoming TelephoneLine MUSTconnect tothe LINEIN portof TLM.
AlltelephonesandtelephonedevicesMUSTconnecttotheLINEOUTport of
TLM.
ThisisextremelyimportantbecauseTelephoneDevicesconnectedinParallel
tothesameTelephoneLineasTLMwillactivatetheTLMRelaywheneverthey
areused.
TLM is totally ‘Transparent’ in operation and will not affect the use of the
TelephoneLine inanyway.
TELEPHONELINEDISCONNECTION
TLM’s functionistoconstantlymonitortheTelephoneLinethatitisconnected
to and only respond when the telephone line connected to it has been
disconnected or cut.
Intheeventthatthishappens,after6secondsTLMwillautomaticallyCLOSE
the contacts of an Internal Relay, which in turn can be used to trigger other
externalequipmenttoadviseofthelossofTelephoneLine.Thecontactofthe
Internal Relay will remain closed until the telephone line service has been
restored.
TLM’s Internally Relay has Dry Relay Contacts, rated at 12V/1A.
ThreeOptionallowcostAccessoriesareavailablefromNatcommforusewith
TLM,toalerttheuserthattheTelephoneLinehasbeenlost.TheseAccessory
DevicesarealldesignedforEasyUserInstallation.Seepage5forfurtherdetails.
The Relay Output of TLM can alternatively be used to Control a 3rd Party
ElectricalDevice(notsupplied).AnAccessoryDeviceConnectionbox(with2
screwterminals)issupplied for thispurposeand connects toTLM viaa short
suppliedcable.
Important Note : TLM waits 6 seconds before activating the internal relay,
shoulditdetectthatatelephonelineconnectedtoithasbeendisconnectedor
cut This period is designed to overcome false alarms should a very brief
interruptiontothetelephonelineserviceoccur.

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DESCRIPTION Continued
TELEPHONELINECONNECTION
1. Single Telephone Socket Operation
TLMcanbeconnectedtoANYTelephoneSocketontheTelephoneLine.
If another Telephone Device is to be used on the same Telephone
Socket,thenitcanbeconnectedusingaDoubleTelephoneAdaptor(not
supplied) to the LINE OUTPUT Port of TLM.
2. Multiple Telephone Socket Operation
a) The LINE IN port of TLM MUST be connected to the Incoming
Telephone Line (which connects to the first socket on your line).
b) The LINE OUT port of TLM MUST be then be connected to all
Telephonesockets onthe TelephoneLine.
c)ThisinstallationprocedureMUSTbecarriedoutbyasuitablyqualified
telephonetechnician.
d) This will ensure that there are NO Parallel connected Telephone
Devices used on the same line, which would cause TLM to respond as
if the Telephone Line was Cut or Disconnected.
POWERCONNECTION
A 12VAC Power Adaptor is supplied with TLM. It can also be operated
from a 12VDC source, with a minimum capacity of 300mA. If an
alternative 12VDC source is used, polarity is not important.
OPERATIONWITHADSL
TLM canoperateonaTelephoneLinewhichalsohasanADSLservice.
TLM will not affect the ADSL operation.
ADSL will not affect the operation of TLM.
If used, the ADSL FILTER should be fitted ahead of the TLM device.

Page 4 National Communications
INSTALLATION INSTRUCTIONS
1. Telephone Line Connection
Theincoming TelephoneLine MUSTconnect tothe LINEIN portof TLM.
AlltelephonesandtelephonedevicesMUSTconnecttotheLINEOUTport
ofTLM.
This is extremely important because Telephone Devices connected in
Parallel to the same Telephone Line as TLM will activate the TLM Relay
whenevertheyareused.
2. Accessory Device Connection
(Light, Loud Siren or other device)
If you are connecting a NATCOMM Accessory, refer to pages 5-11.
IfyouareconnectingaTHIRDPARTYELECTRICALAccessory, refer
to pages 12 - 15.
Aninterfacebox with2 screwterminalsis suppliedto provideaconvenient
meansofconnectingyour3rdPartyElectricalDevicetotheRelaycontacts
located within TLM.
A short connection lead is also supplied to connect the connection box to
TLM.
Important Note : The Dry Contact Relay within TLM is rated at
12V and 1Amp. If you exceed either of these parameters,
permanent damage will result.
3. Power Adaptor Connection
CONNECT the supplied 12VAC Power Supply (or alternative 12V source)
and switch it ON.

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NATCOMM ACCESSORIES
1) Mini Strobe Light (blue)
TheSirenaccessoryconnectstotheRelayOutput
port of TLM via the ‘Connection Box’ and short
cable supplied with this accessory. A 10 metre
cable is supplied with this accessory that can be
shortenedorlengthenedas necessary (polarityis
important please see bold section below).
Please Note : Wiring polarity IS VERY important for this
Accessory. Permanent damage will result if the
polarity of the Red and Red/Black wires is not
maintained.
2) Siren Speaker with Volume Control
TheStrobeLightaccessoryconnectstotheRelay
Output port of TLM via the ‘Connection Box’ and
short cable supplied with this accessory. A 10
metre cable is supplied with this accessory that
can be shortened or lengthened as necessary.
Please Note : Wiring polarity IS VERY important for this
Accessory. Permanent damage will result if the
polarity of the Red and Red/Black wires is not
maintained.
3) Power Control Unit
The Power Control Unit accessory connects to
the Relay Output port of TLM via the curly cord
cable supplied with this accessory.

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NATCOMM STROBE LIGHT ACCESSORY INSTALLATION
RED
BLACK
Analogue Extension
PSTN Line or
IP Analogue Adaptor
Supplied Strobe Connection Box
CONNECTION WITH NATCOMM SUPPLIED STROBE
12V Power
Supply
Telephone line out (to handset)

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STROBE LIGHT INSTALLATION
A white connection box is supplied to allow for easy user connection of
this accessory.
The box has two leads connecting from it :
STEP 1. The short Cream coloured telephone cable with the RJ plug
should be plugged into the Relay Output port of TLM.
STEP 2. A10mfigure8cable withRed andRed/Blackwire, issupplied
connected tothePositive(Red) and Negative(Red/Black)wiresof the
Strobe Accessory, using a connection block.
Youcan lengthenorshortenthiscable,butitisVERYIMPORTANTthat
you maintain polarity of the wires.
The Red wire from the Connection Box must connect to Red wire
connected to the Strobe Accessory only.
TheBlack/Redwire(RedwirewithBlackstripe)fromtheConnectionBox
must connect to Black wire connected to the Strobe Accessory only.
Polarity is important. Failure to maintain polarity
will cause fatal damage to the Strobe Accessory.

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NATCOMM SIREN ACCESSORY INSTALLATION
RED
BLACK
Analogue Extension
PSTN Line or
IP Analogue Adaptor
Supplied Siren Connection Box
CONNECTION WITH NATCOMM SUPPLIED SIREN
12V Power
Supply
Telephone line out (to handset)

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SIREN INSTALLATION
A white connection box is supplied to allow for easy user connection of
this accessory.
The box has two leads connecting from it :
STEP 1. The short Cream coloured telephone cable with the RJ plug
should be plugged into the Relay Output port of TLM.
STEP 2. A 10m Red and Black figure 8 cable is supplied connected to
the Positive (Red) and Negative (Black) wires of the Siren Accessory,
using a connection block.
Youcan lengthenorshortenthiscable,butitisVERYIMPORTANTthat
you maintain polarity of the wires.
The Red wire from the Connection Box must connect to Red wire
connected to the Siren Accessory only.
TheBlack/Redwire(RedwirewithBlackstripe)fromtheConnectionBox
must connect to Black wire connected to the Siren Accessory only.
Polarity is important. Failure to maintain polarity
will cause fatal damage to the Siren Accessory.

Page 10 National Communications
Analogue Extension
PSTN Line or
IP Analogue Adaptor
CONNECTION WITH NATCOMM POWER CONTROL UNIT
12V Power
Supply
Telephone line out (to handset)
POWER CONTROL UNIT ACCESSORY INSTALLATION