Faunus BT-10 User manual

BT-10 Telephone
& Modem
Line Tester
-Instruction Booklet-
The BT-10 is designed to test a
variety of telephone line parameters.
It can help prevent needless and
expensive telephone company
service calls and can safeguard your
equipment by testing one or two line
installations for proper operation of:
◊ Tip to Ring DC Polarity.
◊ Relative DC Line voltage level.
◊ Line Loop-Current capacity.
◊ Relative AC Ring voltage level.
◊ Phone extensions and cords.
These features can simplify the
testing and installation of modular
phone jacks and phone line wiring.
Step I.
Inserting the Adapter
When you remove the cap from the
unit, an adapter cord is pre-installed.
It can be replaced or removed for the
testing of extensions and cords.
Begin by inserting, as shown, any
end of the included adapter (A) into
the modular RJ-11 Jack (A). Slide
the Line 1/ Line 2 Selector Switch to
the position of which line you are
testing. If you are not sure, it’s
simple, just follow the next steps.
Step II.
Connecting to the Network
It is best to begin testing at the
primary entry point of the local
telephone line (Network Interface
Test Jack). In this way you can
determine if any problem is due to
your provider or your own local
installation. As shown, insert the free
end of the adapter (B) into the
modular RJ-11 telephone jack under
test or Network Interface Test Jack
(B).
A
A
B
Line 1/ Line 2
Selector
B
B
To Network
RJ-11

Step III.
Testing the Telephone Network
A) Polarity and Line Voltage
Lightly press the Polarity button. If no
indication is shown by the Red or Green
Polarity LED’s and the Voltage display
LED’s, you may not have the correct
Line selected. Gently slide the Line
Select Switch to the other position and
repeat this step. If you still have no
indication, then neither line is working.
There may be a loose connection,
broken wire, or short in the wiring.
Correct Polarity is shown as Green,
reversed as Red. (Equipment such as
modems, FAX machines, and some
tone-dialing telephones may not work
properly with a reversed polarity line.)
B) Loop Test (Loop Current)
If a Polarity indication was given, lightly
press the button shown for Loop Test.
This will simulate an “off-hook”
telephone. The Red LED will light
brightly if sufficient power is available to
operate a telephone or other device. If
the LED does not shine or is very dim,
either another device is in use or the line
has a partial fault. No Telephone
Network Device can properly operate
with no or insufficient Loop Current.
C) Line / Ring Voltage Display
This display indicates three states of line
condition. With no button pressed, the
BT-10 is in a stand-by mode waiting for
a Ring signal. Use the chart on the back
of the BT-10 as a reference.
When the Polarity button is pressed,
this display will also show the Network’s
Line Voltage. A properly installed and
balanced network will always be
indicated with the Green LED. Yellow
indicates a potentially damaging
Network, Red a poor or damaged
Network needing repair.
D) Testing Telephone line cords.
After verifying proper Network
operation, remove the adapter and
replace with a line cord. Repeat Step
III A & B. A good line cord should not
change the results of your previous
testing.
Caution Do Not Exceed
Caution Do Not ExceedCaution Do Not Exceed
Caution Do Not Exceed
150 VRMS to the Test Jack.
150 VRMS to the Test Jack.150 VRMS to the Test Jack.
150 VRMS to the Test Jack.
The BT-10 should not be permanently
connected to a telephone network. Use
it only to test the network and then
disconnect from the telephone wiring.
Helpful Note for common wiring:
Line 1 Tip/Ring as Red and Green.
Line 2 Tip/Ring as Black and Yellow.
©
Faunus, Inc.
Faunus, Inc.Faunus, Inc.
Faunus, Inc.
2001.
Polarit
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Test
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oltage
Line Select
1
2