9000 Cambridge Research Park, Beach Drive, Waterbeach
Cambridge, CB25 9TL, United Kingdom
© SPR-DOC-00117
Configuring HBC2/HBC3 for Handset Mode or Fist Mic Mode
You can set the HBC2/HBC3 to Handset Mode or Fist Mic Mode by powering on whilst
pressing and holding the PTT and Navi-keys as described here. The mode persists even if
the power supply is disconnected.
To power on the HBC2 press the Mode key. To power on the HBC3 press and hold the
Cancel/Home key only until the green LED comes on then release the Cancel/Home key.
•for Handset Mode press and hold the PTT and the – Navi-key whilst powering up.
After the LED flashes green twice (Handset Mode), release the PTT and the – Navi-
key.
•for Fist Mic. Mode press and hold the PTT and the + Navi-key whilst powering up.
After the LED flashes blue twice (Fist Mic Mode), release the PTT and the + Navi-key.
Remote Microphone and Switches Installation (optional)
It is recommended that the microphone is located away from any wind noise in a position
suitable for the operator(s), e.g., near internal rear view mirror.
The switch unit should also be located centrally for the operator(s) to access. A self-
adhesive hook and loop pad is provided for mounting the remote PTT on a flat surface, e.g.,
dashboard.
Only one hands free microphone can be used in an installation, which can be connected to
either audio accessory interface.
Termination to console connector
The remote microphone is supplied un-terminated for ease of installation. Terminate to the
console as shown below after the switch unit and microphone are positioned.
If you are installing an Interface and Handsfree Box revision 2.0 or later with HBC (not
HBC2/HBC3), disconnect the Remote PTT Red Wire from the Remote PTT connector.
If you intend to upgrade to HBC2/HBC3 later, the red wire should be carefully removed from
the connector and taped out of the way, so that it can be reconnected as part of the
HBC2/HBC3 installation process.
Cable entry - Standard & Colour Console
Dress the cables via the guide channel as shown on page 1 (the two console types have
slightly different cable channels). Fit the split bung and the cable tie (supplied) around the
cables. Press the bung into the recess in the channel. Tighten the cable tie behind the
bung to secure the cables and allow slack at the 10-way plug termination.
Note: when used in conjunction with a handset or fist-microphone accessory the hands free
kit must be plugged into the Audio Accessory Interface 1 connector (back left) to allow all
cables to be routed correctly (as shown on page 1).
Cable entry - Handset Based Console
Dress the cables via the small guide channels at the bottom end of the cradle box (the
microphone channel is slightly smaller). The cables are gripped when the lid is secured.
Note: when used in conjunction with HBC2/HBC3 the Soft Key of the Remote Microphone
and Switches accessory is only operational with Interface and Handsfree Box revision 2.0
or later. To enable it with Interface and Handsfree Box revision 1.0, an additional shorting
link must be added between pins 4 and 6.
Fist Microphone/Handset (optional)
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
Standard or Colour console so that the grommets seal correctly. Colour Console specific
accessories attach to the Front 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.
Loudspeaker
The loudspeaker should be positioned so that it faces the operator, but is out of the line of
sight of the Remote Microphone.
Programmable I/O
The transceiver supports 4 programmable digital I/O lines: 3 inputs and 1 output.
The following functions may be allocated on the input lines:
•External Alarm Input
•External Input Triggered Status Messages
The following functions may be allocated on the output line:
•External Alert Output
•Status Message Triggered External Outputs
For details of how to programme the functions refer to the Radio Manager documentation.
For details of the signals and their characteristics, see the following table:
Description Performance
Orange Programmable
input 1
IH
VIL max = 0.8 V
Protected against accidental application of vehicle
supply voltage, 15.6 V maximum.
Description Performance
Yellow Programmable
input 2
IH
VIL max = 0.8 V
Protected against accidental application of vehicle
supply voltage, 15.6 V maximum.
Green Programmable
input 3
IH
VIL max = 0.8 V
Protected against accidental application of vehicle
supply voltage, 15.6 V maximum.
Pink Programmable
output
500 mA max. sink current
15.8 V max. external voltage. Internally protected
against inductive loads, and with a re-settable fuse.
To control devices from the programmable output which require more than 0.5 A,
use a suitable automotive relay to ensure correct operation. Connect the relay coil
between the output wire and the vehicle positive supply. The device must be
protected by an appropriate fuse in its positive supply. Check with the local
regulatory authority where the output is used to drive external alert devices such as
Installation with a Mobile Data Terminal (MDT)
This guide does not include specific details about installing with a MDT. For Standard
Console, connect via the 15-way D-type connector on the lower face using a Data Lead.
For Colour Console, connect via rear 8-way Dedicated Data Connector (DDC) using a DDC
PEI Tail and Data Lead or via Front Accessory Connector (VAC) using USB Data Cable.
Alternatively, connect via spare a 15-way interface on the transceiver using a Data Lead. If
a spare 15-way interface is not available, connect a Console Interface Box (300-00221)
between the transceiver and console using remote console cables not exceeding 10 m in
total length. Connect the MDT to the spare 15-way connector on the interface box.
Customising/Programming the Mobile Radio
To customise or re-program the internal software in the mobile radio you will need the
following items:
Radio Manager
Mobile Radio Power/Audio lead
Mobile Radio Data lead or USB Data Cable (option for colour console)
Connect the power lead to the power connector on the rear of the transceiver. The red and
black wires in the power lead should be connected to a suitable power supply set to 12 V
nominal with a rating of 5 A. Connect the blue ignition wire in the power lead to the positive
terminal on the power supply. All other wires may be left unconnected.
Standard Console Connection
Connect the Data Lead to either of the 15-way D-type Interfaces on the transceiver or to the
Data Connector on a console. Connect the other end of the data lead to a COM port on a
PC loaded with the Programmer.
Colour Console Connection
Connect to the PC com port via the Dedicated Data Cable (DDC) from the rear of the
console or to a USB port using the USB Data Cable from the Front Accessory Connector
(VAC).
RF Compatibility Checks
The following checks must always be carried out if the vehicle is equipped with electronic
anti-skid, electronic ignition or engine management systems.
The transmitter should be operated only for the time required to make an observation.
The transmitter should be operated on a TETRA System, or these checks will have to be
carried out in DMO.
An assistant will be required for the following checks.
1 With the vehicle stationary and the engine running at fast idle, operate the
transmitter. Check that the brake lights do not illuminate and that the engine
continues to run normally, i.e., with no surging or cutting out.
2 Operate the brake pedal, key the transmitter and check that the brake lights do not
extinguish.
3 Put the vehicle into motion at a speed of 15 – 25 km/h (10 – 15 mph), key the
transmitter and operate the brake pedal simultaneously. Check that the braking
action is normal and that the engine does not surge or cut out.
In the event of an apparent malfunction in the braking or any other systems during
RF compatibility checks, the transceiver installation should be rendered inoperative
and the vehicle manufacturer should be contacted before any further use is made of
the transceiver installation.
Unqualified persons should not attempt to modify these units in any way.
Sepura mobile transceivers have a small rechargeable internal back-up battery.
This battery powers the internal Real Time Clock in the event that the main power to
the product is removed. The battery may have discharged during the manufacturing
process or if the product has been in storage for some time. Once the product is
connected to its main supply, the back-up battery will charge regardless of whether
the product is turned on or not. The charge period for a full charge may be up to 48
Mobile Radio Series Vehicle Accessories
For details of the accessories available visit the Sepura website (www.sepura.com) or
contact your support partner.
Microphone
10-way console plug
