Sepura SCG22 Series - Advanced Connectivity: SIM Reader and MDT; Connecting a Remote SIM Reader; Mobile Data Terminal (MDT) Connection

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Conguring the HBC3
The HBC3 can be congured for either Handset mode or Fist Mic mode
as part of the installation. Conguration is done when powering on the
handset, whilst pressing and holding the PTT and Navi-keys as described
below. The mode persists even if the power supply is disconnected.
To power on the handset:
HBC3
Press and hold the Cancel/Home key until the green LED
illuminates, and then release
To congure a mode:
Handset Mode
Press and hold the PTT and the – Navi-key whilst
powering up. After the LED ashes green twice
(Handset Mode), release the PTT and Navi-key
Fist Mic. Mode
Press and hold the PTT and the + Navi-key whilst
powering up. After the LED ashes blue twice (Fist
Mic Mode), release the PTT and the + Navi-key
Fist Microphone/Handset
The Fist microphone and/or Handset should be located centrally for the
operator(s) to access, using the screws provided. Ensure that the cables
are placed in the rear of the SCC3 so that the grommets seal correctly.
Specic accessories attach to the Vehicle Accessory Connector (VAC).
These should be used when mounting in a DIN slot.
Note: If replacing a rear connecting handset with a
front connecting handset, also replace the magnetic
hook rest with the one supplied.
Multiple Fist Microphones and/or Handsets may be connected in an
installation, which may be connected to either audio accessory interface.
Remote Microphone and Switches Installation
It is recommended that the microphone is located away from any wind
noise in a position suitable for the user, such as near the internal rear
view mirror.
The switch unit should also be located centrally for the user to access. A
self-adhesive hook and loop pad is provided for mounting the remote PTT
on a at surface, such as the dashboard.
Only one hands free microphone can be used in an installation, which
can be connected to either audio accessory interface socket on the rear
panel of the SCC3.
See the section "SCC3 Connections and Cabling" on page 23.
Connector Wiring Terminations
The remote microphone is supplied unterminated for ease of installation.
Terminate to the SCC3 as shown below after the switch unit and
microphone are positioned.
Remote Mic
Switch Unit
Black
Red
White
Black
White
Identification
Link