
DCI2 • 15
Initial DCI2 Testing
Now it’s time to do come basic testing to see if your DCI2 is operating
properly. These tests will verify that the microprocessor and tone decoder
circuits are functioning. In order to test the actual outputs you will need to
make up a tester using the extra red LED and 220 ohm resistor included in the
kit. We’ll take you thru the procedure.
Tone decoder & microprocessor test
You will need to have a touch tone signal source connected to J6 in order to
perform these tests. All you need to do is connect the DCI2 to your telephone
line , Just like you connect a telephone, using a standard telephone
connection cable. By lifting the phone receiver and pressing the phone’s
buttons the tones till be generated a dn the DCI2 will decode them. Don’t
worry about any tones or other things like your phone is off-hook or out of
order type messages. The DCI2 will filter them out and ignore them. Once
you have the DCI2 connected follow the steps below. It is important that you
follow the steps exactly or the results may not be as indicated. Don’t just start
randomly pressing buttons. If the results indicated are not achieved, stop and
go to the troubleshooting section of this manual.
1. Make sure both S1 and S2 are not pressed in.
2. Apply power to J5 of the DCI2 and turn it on by pressing S1. The power
LED should light.
3. Connect the DCI2 phone line input, J6, to a telephone line using a
standard RJ11 phone cord. Make sure there is a telephone set nearby
also connected to the phone line.
4. Lift the phone and press the “4” button several times. The activity LED
should flash each time you press the button and you will hear numerous
beeps. If this works proceed to the next step. Otherwise you’ll need to do
some trouble shooting. See the troubleshooting section of this manual.
5. Turn the DCI2 off and back on and then lift the phone receiver and listen
while pressing the “1” button. You should hear the Touch Tones, a single
beep from the DCI2 and the “ACTIVITY” LED on the DCI2 should flash
TWO times.
6. Now press the “#” button. The “ACTIVITY” LED should flash ONCE and
you should hear another single beep.
7. Now press the “2” button. You will hear the Touch Tones, TWO beeps
and the activity light will flash THREE times.
8. Now press the “#” button. The “ACTIVITY” LED should flash ONCE and
you should hear another single beep.
Repeat steps 4 and 5 for each of the buttons on the phone. Each time you
press a number you will hear the corresponding number of beeps in the phone
and the “ACTIVITY” LED will flash the number pressed times plus one. You
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