July 2013 © British Telecommunications plc 2013
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Figure 21 – Dial capture board fitted inside secure Mk3 unit
Fitting the dial capture board.
Power down the Secure Mk3 unit.
Use an ESP strap to provide electrostatic protection to the circuit boards.
Remove the plastic cover by releasing the 6 clips on the rear of the Secure Mk3 unit
with a small screwdriver.
Remove the Printed circuit board PCB from the plastic base.
Identify the 20 way connector J202 and the 6 way connector J801 on the secure Mk3
unit.
Line up the 20 pins of J100 and the 6 pins of J200 on the dial capture board.
Ensure that the dial capture board is correctly aligned and press fully into the
connectors.
Insert the screw through the hole in the rear of the PCB and gently tighten to hold the
dial capture board in place. (Do not over tighten)
Re-assemble the Secure unit and replace the plastic cover.
The secure unit will auto detect the dial capture board at power up. For most installations no
additional configuration is required.
Connect the alarm panel’s digital communicator line connections to the terminals marked
Panel A, Panel B on the secure Mk3 unit. The unit is not polarity conscious.