User's Guide
SPR-DOC-04439 2.0 (English)
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Sepura Limited
9000 Cambridge Research Park
Beach Drive, Waterbeach,
Cambridge, CB25 9TL
United Kingdom.
+44 (0) 1223 876000
www.sepura.com
Copyright
© Sepura Limited 2002–2021
All rights reserved. This document is intended for the use of
Sepura Limited customers and/or other parties only for the
purposes of the agreement or arrangement under which this
document is submitted, and no part of it may be reproduced
or transmitted in any form or means without the prior written
permission of Sepura Limited.
Disclaimer
Sepura’s policy is to continually improve its products. The
features and facilities described in this document were correct
at publication, but are subject to change without notice.
Safety Information
READ THE TETRA PRODUCT SAFETY GUIDE
(SPR-DOC-00170) SUPPLIED WITH THE SCG22
FOR IMPORTANT INFORMATION ABOUT SAFELY
OPERATING THIS PRODUCT.
ALWAYS POWER OFF the mobile radio in environments where
RF wireless devices could potentially cause an explosion.
Potentially hazardous areas are not always signed. Obey all
signs and instructions relating to the usage of RF wireless
devices.
DO NOT touch the antenna when the mobile radio is powered
on. In order to reduce the risk of RF burns, the antenna must
always remain connected when the equipment is powered
on. DO NOT connect or disconnect the antenna whilst the
equipment is powered on.
Potential risk of burn injury. DO NOT touch the heatsink ns
when the transceiver is powered on.
ONLY t an approved accessory. If a non-approved accessory
is tted, it may compromise the product safety ratings and may
void any product warranty.
DO NOT attempt to dismantle this product. Servicing and
repairs to this product must be performed by trained service
technicians at Sepura approved service centres.
Exposure to RF Energy
Sepura designs and manufactures products to meet strict
guidelines and international standards relating to Radio
Frequency (RF) energy and the potential health risks
associated with using RF wireless devices. If you have any
concerns relating to long term health risks associated with
using RF wireless devices, you should obtain advice from your
employer.
Operation
It is the responsibility of the person operating the product to
ensure that it is operated safely at all times, and that local laws
and regulations governing the usage of Radio Frequency (RF)
wireless devices are observed. Obey all signs and instructions
relating to the usage of RF wireless devices.
Regulatory Compliance
This product must be installed in accordance with national
and local radio communications authorities and/or Health and
Safety regulations.This product may aect public broadcast
radio, security code alarm systems and some engine
management systems.
Unpacking
Unpack the container(s) and ensure that all items specied on
any delivery note are present and received in good condition.
If any of the goods are damaged or not supplied, contact your
service provider within 10 days of receipt of equipment.
Consoles or accessories are not shipped in the container
with the SCG22 mobile radio due to the many combinations
available.
Mobile Radio Compact Installation Guide
SCG22 Series Transceiver
CAUTION! Risk of product damage. When
carrying out installation requiring the removal of
product covers, ESD precautions must be taken.
READ ALL THE INSTRUCTIONS before attempting to install
the SCG22. If you do not understand the instructions, STOP
and contact your service provider or Sepura for assistance.
Always read the vehicle manufacturer’s handbook before
starting to install the product. Installation of this product may
aect the vehicle electrical systems. Contact the vehicle
manufacturer if you are not certain if it is safe to install this
product.
Installation Guidelines and Recommendations
This installation guide provides basic information about
installing the mobile radio into land based vehicles (not marine
based vehicles or motorcycles).
The installation of this product must be performed by a suitably
skilled and technical competent person such as a qualied
vehicle installation technician.
This product can be installed into various makes and models
of vehicles and therefore these instructions are not a denitive
guide to installing the product into vehicles.
The installation should comply with FCS1362
CODE OF PRACTICE for the installation of mobile radio and
related ancillary equipment in land based vehicles (see http://
www.fcs.org.uk).
Before you start the installation, ensure that you have all the
accessories, including cables.
Operator Access and Safety
Install the console in a position where the operator has easy
access to the controls and the microphone when wearing a
seat belt. The controls must also be within the driver’s normal
eld of vision.
DO NOT t the console above the driver’s or passenger’s
head, or in other positions where the console would become
a hazard in an accident or is at risk of damage from any
occupant or carried items.
The microphone/handset hook mount must be tted such that
the microphone/handset is easily accessible and the cable
cannot interfere with the vehicle control, or with the driver’s
feet.
Preferably, the loudspeaker should be installed such that
the grille is facing the operator, but out of sight of the remote
hands-free microphone (if tted).
Ensure that fuel lines, hydraulic lines and existing cables are
not damaged during installation.
Ensure that the installation does not impede the normal
operation of the vehicle, including the operation of any safety
device, e.g., airbags and seatbelt tensioners.
Speed control, fuel injection, anti-lock braking, navigation, air
bag and other electronic systems are relatively immune to
RF interference. However, if diculty is experienced or faulty
operation is suspected, consult the vehicle’s dealer.
ALWAYS perform RF compatibility checks after installation.
See “RF Compatibility Checks” on page 3.
RF Energy
Motor vehicle manufacturers make use of electronic vehicle
control systems, e.g., ignition, anti-skid devices etc. The
following information is supplied to ensure that there is no radio
frequency interference eect upon the vehicle’s electronic
systems.
To prevent interference with any other electronic systems in
the vehicle, the antenna should be mounted as far away as
■ Full safety information
■ Parts supplied
■ Model variants and options
■ Connector sealing
■ Connecting leads
■ Mounting options
The Mobile Radio Compact Installation Guide provides critical safety information and
instructions for installing the SCG22. It is intended to be used as a quick reference guide in
conjunction with the Mobile Radio Full Installation Guide.
The Mobile Radio Full Installation Guide (SPR-DOC-04384) provides all the additional information
and instructions required to install the SCG22, including:
■ Fitting a SIM Card or SIM card reader
■ SCG22 mounting options
■ Cable and connection information
■ SCC3 mounting options
■ Connecting, mounting and conguring the HBC3
■ Programming, customising and data connections
https://ic.sepura.com/login
To view, download or print the Mobile Radio Full User Guide, visit:
Note that the accessory pack must be specied at the time
of ordering. ALWAYS keep documentation supplied with the
product for future reference and pass on to any person who is
responsible for operating the product.
Installation Precautions
WARNING! DO NOT smoke or use naked ames
when working near the vehicle’s fuel system.
WARNING! This equipment is not suitable for use
in locations where children are likely to be present.
CAUTION! Only use hand tools and do not over-
tighten screws and xings.
CAUTION! Prolonged operation of the SCG22 with
the vehicle engine powered OFF, may drain the
vehicle’s battery. Disconnect the vehicle’s battery
before commencing installation (be aware of the
eect on the public broadcast radio security code,
alarm systems and some engine management
systems).
possible from these units and their associated cables. Refer to
the vehicle manufacturer’s handbook to locate these items.
Consult the manufacturer’s handbook to establish whether it
is practical to disconnect the vehicle battery without aecting
devices, such as central locking mechanisms, engine
management computers, security-coded in-car entertainment
units etc.
Specialised Vehicles
The installation on certain specialised vehicles, such as fuel
tankers and re-ghting vehicles may be subject to additional
safety regulations which must be closely observed. Prior to
commencing an installation on such a vehicle, make sure that
any relevant safety regulations are fully understood.
Petrol/Diesel Powered Vehicles
Ensure that there are no petrol/diesel leaks before
commencing an installation involving the use of electric tools
as these can produce sparks. Ensure that no damage to the
fuel tank or fuel lines occurs when drilling holes.
Gas Powered Vehicles
Before installation starts ensure that there are no gas leaks
before commencing an installation involving the use of electric
tools as these can produce sparks. DO NOT USE A NAKED
FLAME. Butane and propane are heavier than air, so if there
is a leak the gas may lay on the oor of the boot. The gas is
detectable by its characteristic smell. The point of escaping
gas may show signs of frosting. The vehicle owner should
arrange for the leak to be repaired before the installation is
commenced.
Ensure that no damage to the gas tank or gas lines occurs
when drilling holes. Supply cables should be run, if possible, on
the opposite side of the vehicle to the gas fuel pipe.
Vehicles Fitted with Electronic Devices
In theory, any vehicle electronic systems could be aected by
the presence of an RF eld of sucient intensity, which when
detected may cause the device to malfunction. The source
of RF may be an SCG22 installed in the vehicle itself or one
operating in another vehicle in close proximity. If interaction
did occur, loss of control could result for the duration of the
transmission. In the interests of safety, the user must be asked
to test the vehicle when the installation is complete.
Temperature and Orientation Considerations
Reliable transmit operation will be achieved if the SCG22 is
mounted such that the heat sink ns receive a free ow of air,
i.e., if it is mounted within 15° of the normal vertical orientation
with no restriction to the ow of convected air. For any other
orientation, varying degrees of degradation may result.
Fitting the SCG22 or console on top of the dashboard is not
recommended. Exposure to direct sunlight may cause the
temperature to rise to over 80 °C (176°F). Prolonged exposure
to these temperatures may damage the equipment and
invalidate any product warranty.
Do not mount the SCG22 close to a heat source, e.g., in front
of a heater vent.
Location Considerations
The SCG22 must be tted within the interior of the vehicle
(excluding the engine compartment) and protected from the
external environment and vehicle cleaning operations.
Locate the SCG22 away from sources of strong
electromagnetic interference including cables powering the
starter motor or the electric traction motor in electric vehicles.
Ensure that the installation does not impede the normal
operation of the vehicle, including the operation of any safety
devices such as airbags and seatbelt retainers.
The SCG22 should be positioned so that it does not obstruct,
or become at risk of damage from, any occupant or carried
items. Ensure sucient space is provided above the installation
to allow tment and removal of the SCG22.
Protect the rear panel connectors and connecting cables from
the risk of impact damage. If a connector is not in use, the dust
covers or seal bungs provided must be tted to reduce the risk
of damage or dust/moisture ingress.
RF Compatibility Checks
On completion of the installation, the following checks
must 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. Ideally these checks
should be performed on the TETRA system. If this is not
possible, perform the checks 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.
WARNING! In the event of an apparent
malfunction in the braking or any other systems
during RF compatibility checks, the SCG22
installation should be rendered inoperative and
the vehicle manufacturer should be contacted
before any further use is made of the SCG22
installation. Unqualied persons should not
attempt to modify these units in any way