User's Manual Part 5
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3 After manufacture, the T2000-50 PCB links are left open and will need to be cus-
tomer selected. For details of optional links, refer to the Link Options Table in the
circuit diagram.
Non-trunked radios: standard links are 4B and 5A.
4 Set up the T2000-50, as described in Section 8.11.4, “T2000-50 Set-Up”.
A +5V logic signal is provided to indicate VOX activity (S21 pin 7). ‘VOX’ (violet
wire) and ‘ground’ (grey wire) are both available from the D-range assembly red
in-line connector.
A spare in-line connector is also included in the kit for interfacing to an appropri-
ate visual indicator e.g. an LED.
5 Carefully fold the logic and T2000-50 PCBs back in position, guiding the D-range
connector through the hole provided in the T2000 chassis.
Check that no electrolytic capacitors are touching the T2000 chassis (e.g. C21 or
C51.)
6 Secure using the three logic PCB retaining screws and the three M3x8 screws pro-
vided and refit the top cover.
Plug the D-range assembly provided in the kit into the D-range connector (S21).
Holes are provided in the T2000 chassis for the D-range plug locking screws.
Use the two black 4-40x¼ Taptite screws provided in the kit to form the threads.
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The handsfree directional microphone plugs into the T2000 via the D-range assembly
microphone socket. The positioning of the microphone is important for correct opera-
tion of the handsfree unit and some experimentation may be necessary to obtain the best
performance from the VOX.
• The microphone should be mounted in a position 20cm or less from the driver.
• The microphone location should be free from vibration.
• The microphone must face the driver.
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The footswitch plugs into the D-range interface via the black 2 way in-line connector. It
is recommended that the footswitch be screwed to the floor.
The 3m lengths of the footswitch and microphone can be effectively extended
by fitting a standard 9 way D-range extender cable between the radio and the
D-range assembly. These extension cables are not included as standard but are
available from most computer outlets.