NatComm TLM User manual

1 Page Natcomm
Telephone Line Monitor
USER GUIDE
For Technical Assistance
Please Ph: 07 5596 5128

OPERATION
Our Telephone Line Monitor (TLM) device is designed to activate whenever the
Telephone Line that it is connected to has been lost, disconnected or cut.
In the event that this happens, 10 seconds later TLM will automatically CLOSE the
contacts of an Internal Relay, which in turn can be used to trigger other external
equipment to advise of the loss of Telephone Line. The contacts of the Internal
Relay will remain closed until the telephone line service has been restored.
TLM waits 10 seconds before activating the internal relay to overcome false
alarms should a very brief interruption to the telephone line service occur.
TLM is totally ‘Transparent’ in operation and will not affect the use of the
Telephone Line in any way.
Two Optional low cost Accessories are available from Natcomm for use with TLM,
to alert the user that the Telephone Line has been lost. These Accessory Devices
are all designed for Easy User Installation. See pages 5 - 9 for further details.
The Relay Output of TLM can alternatively be used to Control a 3rd Party
Electrical Device (not supplied). An Accessory Device Connection box (with 2
screw terminals) is supplied for this purpose and connects to TLM via a short
supplied cable.
TLM’s Dry Relay Contacts are rated at 12V/1A. If these voltages are exceeded
by the use of a 3rd party device, damage will occur to TLM and correct operation
will be lost.
IMPORTANT NOTES
 It is the responsibility of the user or installer to ensure that TLM and any
connected accessories are tested at appropriate intervals for correct
operation.
Although TLM devices have proved to be extremely reliable over many years of
operation, events such as telephone line surges, power surges, connection
issues or even failure of TLM are all possible.
 TLM is designed to work on a conventional analog PSTN Telephone Line. If TLM
is to be used on a Fiber, Cable or other Analog or Digital ‘emulated’ telephone
line, then the performance of TLM will depend on the accuracy of the ‘emulated’
service. TLM should be tested thoroughly to ensure that it is compatible with the
‘emulated’ telephone line.

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INSTALLATION DETAILS
TELEPHONE LINE CONNECTION
1. Single Telephone Socket Operation
TLM can be connected to ANY Telephone Socket on the Telephone Line.
If another Telephone Device is to be used on the same Telephone Socket, then
it MUST be connected using a Double Telephone Adaptor (not supplied) to the
LINE OUTPUT Port of TLM, to prevent their use causing TLM to activate with
each use.
2. Multiple Telephone Socket Operation
a)
The LINE IN port of TLM MUST be connected to the Incoming Telephone
Line (which then connects to the first socket on your line).
b)
The LINE OUT port of TLM MUST be then be connected to all Telephone
sockets on the Telephone Line.
c)
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.
POWER CONNECTION
3. A 12V Power Adaptor is supplied with TLM. It can also be operated from any
12VAC or 12VDC source, with a minimum capacity of 500mA. If an alternative
12VDC source is used such as a UPS or battery backup, input polarity is not
important.
OPERATION WITH ADSL and NBN
TLM can operate on a Telephone Line which also has an ADSL service. TLM will
not affect the ADSL operation. ADSL will not affect the operation of TLM. If ADSL
is used on the same line, the ADSL FILTER should be fitted ahead of the TLM
device.
TLM can also operate on the Analogue Line Output from the supplied NBN
Network Termination Device (NTD) supplied with most NBN installations. With
NBN, an ADSL filter will not be required.

4 Page Natcomm
INSTALLATION INSTRUCTIONS
1. Telephone Line Connection
The incoming Telephone Line MUST connect to the LINE IN port of TLM.
All telephones and telephone devices MUST connect to the LINE OUT port of TLM.
This is extremely important because Telephone Devices connected in Parallel to
the same Telephone Line as TLM will activate the TLM Relay whenever they are
used. See page 3 for important details.
2. Accessory Device Connection (Strobe Alert, Tone Alert or Other Device)
Connect the appropriate Accessory to the Relay Output port of TLM, using the
supplied telephone cable.
If the Accessory is to be located remote to TLM, then you can use solid core
cable such as CAT3, CAT5 or CAT6. The Polarity of the cable wires to the
Natcomm Accessory is not important.
If you plan to separate the Accessory from TLM by more than 100 Metres
(100m), you should connect a separate 12VDC power source into the Power
Input port of the Accessory Device to ensure that it is getting sufficient power.
It is critical that the Accessory receives sufficient power to operate correctly.
Correct operation should be confirmed and then checked at regular intervals
that are appropriate for the application.
The Polarity of an additional 12VDC Power Adaptor or UPS input is not
important.
3. POWER ADAPTOR CONNECTION
CONNECT the supplied 12V Power Adaptor and switch it. If you plan to use an
alternative 12VDC source, you must ensure that a minimum of 0.5A is made
available to TLM at all times, so that there is sufficient power for the attached
Natcomm Accessory, or 300mA if you are connecting a 3rd party accessory not
powered by TLM. Polarity of the 12VDC input is not important.
4. TEST OPERATION
Thoroughly test your TLM and Accessory installation to ensure that it is operating
correctly. It is important that you test for the correct operation of this equipment
at intervals appropriate for its application.

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NATCOMM ACCESSORIES
Strobe Alert
Our Strobe Alert accessory connects to the Relay Output port of TLM via the
expandable curly cord cable supplied with this accessory.
This supplied cable can be substituted for a CAT3/CAT5 (solid core) cable fitted
with appropriate RJ10 (4P4C) plugs. Where a substitute cable is used, you
should test for repeated reliable operation.
Long cables will result in a reduction in the power delivered to Strobe Alert. For
this reason, there is a Power Input socket fitted to Strobe Alert, to allow for
connection of a direct 12VDC source. Generally, good quality cabling will allow
for operation up to 100 Metres (100m). The need for an additional 12VDC power
connection can be determined by repeatedly testing Strobe Alert for correct
operation. If you need to fit an additional 12VDC power source, it should provide
a minimum of 500mA. Polarity of the DC input does not matter.
An Optional Dip Switch is located on the underside of Strobe Alert, which will
allow you to change the Flashing ON and OFF pattern output by Strobe Alert.
There are 4 different Flash Cadences to choose from :
1) Constant Flash (upon detection of remote relay closure)
2) Flash is 2 Seconds ON, 2 Seconds OFF (with remote relay closure)
3) Flash is 2 Seconds ON, 4 Seconds OFF (with remote relay closure)
4) Flash is 4 Seconds ON, 4 Seconds OFF (with remote relay closure)

6 Page Natcomm
STROBE ALERT ACCESSORY INSTALLATION

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TONE ALERT ACCESSORY
with Volume Control
Our Tone Alert accessory connects to the Relay Output port of TLM via the
expandable curly cord cable supplied with this accessory.
This supplied cable can be substituted for any CAT3/CAT5/CAT6 (solid core)
cable fitted with appropriate RJ10 (4P4C) plugs. Where a substitute cable is
used, you should test for repeated reliable operation.
Long cables will result in a reduction in the power delivered to Tone Alert. For
this reason, there is a Power Input socket fitted to Tone Alert, to allow for
connection of a direct 12VDC source. Generally, good quality cabling will allow
for operation up to 100 Metres (100m). The need for an additional 12VDC power
connection can be determined by repeatedly testing Tone Alert for correct
operation. If you need to fit an additional 12VDC power source, it should provide
a minimum of 500mA. Polarity of the DC input does not matter.
An Optional A Dip Switch is located on the underside of Tone Alert, which will
allow you to change the TONE ON and OFF pattern output by Tone Alert.
There are 4 different Flash Cadences to choose from :
1) Constant Tone (upon detection of remote relay closure)
2) 2 Seconds ON, 2 Seconds OFF (with remote relay closure)
3) 2 Seconds ON, 4 Seconds OFF (with remote relay closure)
4) 4 Seconds ON, 4 Seconds OFF (with remote relay closure)

8 Page Natcomm
TONE ALERT ACCESSORY
with Volume Control
A Volume Pot located on the underside of Tone Alert, which will allow you to set
the Volume of the Tone Output to suit your requirements.
Tone Alert can output a volume suitable for Office areas of between 100-200 sq
metres.
Where larger areas need to receive a Tone Alert, an amplified Audio Jack
(Standard 3.5mm) is provided which can connect to Amplified External Speakers.
One or More ssimple inexpensive Amplified PC Speakers with Volume control
can also be used for larger areas.
For Very Large areas, this audio output can be connected to an external amplifier
which can output the Alert Tone to as many speakers as is required.
The Dip Switch located on the underside of Tone Alert, can also output the
FREQUENCY of the Tone Output.
You can output a 400hz tone for Alert requirements.
(400hz is a comfortable frequency ideal for Alert requirements)
OR
You can output an 1100hz tone for Alarm requirements.
(1100hz is a higher frequency ideal for Alarm requirements)

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TONE ALERT ACCESSORY INSTALLATION

10 Page Natcomm
UNPOWERED 3RD PARTY
DEVICE CONNECTION
The relay output from TLM can also be used to advise an external 3rd party
electrical device that the telephone line has been cut or disconnected.
The relay output from TLM is Dry Contact (Rated at 1A at 12V).
TLM’s relay contacts connect to the center 2 pins of the Relay Output
socket. The Relay Output socket is accessed via an RJ12 (6P4C) socket
And a supplied Connection Box with a short cable to connect it to TLM.
The Connection Box has 2 screw terminals for cable connection to the
external 3rd part device.
See the diagram on page 12 for further detail.
If your 3rd party electrical device requires powered output from the TLM
relay contacts, please refer to page 12.
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.