sepura
TETRA Surveillance Terminals
User Guide
MOD-06-229
SOFTWARE RELEASE 5.6
© SEPURA LIMITED 2006
MOD-06-229
sepura
SRC3300 Covert Terminal
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Contents
CONVENTIONS_______________________________________________ 5
GETTING STARTED ___________________________________________ 6
SRC3300 Covert Kit________________________________________________________ 6
Unit _____________________________________________________________________ 7
Batteries_________________________________________________________________ 7
Covert Antenna ___________________________________________________________ 9
Covert Facility Interface Lead _______________________________________________ 9
Remote Control Unit _______________________________________________________ 9
SWITCHING ON/OFF _________________________________________ 10
OPERATING MODES & CALL TYPES____________________________ 11
Operating Modes_________________________________________________________ 11
Call Types ______________________________________________________________ 11
GROUP CALLS ______________________________________________ 12
Talkgroup Selection ______________________________________________________ 12
Changing The Talkgroup Folder ____________________________________________ 12
Making a Group Call ______________________________________________________ 13
Receiving a Group Call____________________________________________________ 13
Changing Talkgroup Whilst Engaged in an Active Group Call____________________ 13
EMERGENCY CALLS _________________________________________ 14
Making an Emergency Call_________________________________________________ 14
Receiving an Emergency Call ______________________________________________ 15
RCU KEYS__________________________________________________ 16
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Soft Keys _______________________________________________________________ 16
GPS _______________________________________________________ 19
LED INDICATIONS ___________________________________________ 20
ALERTS____________________________________________________ 21
Primary Covert Alerts _____________________________________________________ 21
Secondary Covert Alerts __________________________________________________ 22
HEALTH AND SAFETY________________________________________ 23
Transmit Inhibit __________________________________________________________ 23
Radiation Protection______________________________________________________ 23
Electro Magnetic Compatibility _____________________________________________ 23
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Type Approval ___________________________________________________________ 23
Accessories_____________________________________________________________ 24
GLOSSARY _________________________________________________ 25
NOTICE ____________________________________________________ 26
Contact Details __________________________________________________________ 26
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CONVENTIONS
This guide is intended for users of Sepura Surveillance Terminals running Version 5.6
software.
Throughout the document there are references to acoustic alerts for each function. These
may be tonal or white noise, or may not be sounded at all, depending on the customisation of
the terminal.
This guide uses the following formatting and graphical conventions.
Convention Description
Note icon, emphasises related, reinforcing, or important information.
Tip icon, suggests alternative methods for accomplishing tasks or
procedures.
Caution icon. Indicates actions or processes that require caution from the
user.
Reference to another Document.
Acoustic alert that be reproduced when MOD-06-242 Covert Terminal Alerts
is viewed electronically.
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GETTING STARTED
SRC3300 COVERT KIT
The following components are required in order to operate the SRC3300 covert terminal:
• SRC3300 unit
• Battery (standard or high capacity)
• Covert Antenna (flexible wire or T-type)
• Covert Facility Interface Lead
• Remote Control Unit (RCU)
• Inductor / Microphone (neck loop or brooch type)
• Wireless Earpiece
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UNIT
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Zeroise
Key
Accessory
Connector
Antenna
Connector
BATTERIES
FITTING AND REMOVING THE BATTERY
To fit, unpack the battery and slot it into the rear of the covert terminal. Push the battery down
until the catch clips into the bottom of the case. The battery is fully secure when this catch has
clipped into position. To remove, push the catch upward towards the top of the terminal. The
battery pack will unclip and can then be removed.
B
ATTERY CHARGING
The battery should only be charged with Sepura Limited
approved battery chargers. Failure to use an approved
battery charger will invalidate the warranty of the battery and
the covert terminal.
A range of battery chargers is available that allow the battery
to be charged while fitted to, or removed from, the terminal.
When the battery is fitted to the covert terminal, it can be
charged via the facility connector located at the base of the
terminal.
When charging, the colour of the LED on the terminal
indicates the progress of battery charging: orange shows
charging in progress, green shows charging complete, red
shows charging failure.
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The battery includes circuitry to protect against damage caused by accidental shorting
of the contacts. Once the battery has protected itself, it will not operate again until it
has been removed from the terminal and charged.
The covert terminal will warn the user of a low battery condition by sounding 4 rapid tones
every 10 seconds (Low Battery Alert).
As with all batteries, charging cycles reduce the cell capacity. The battery is specified to have
retained a nominal 80% of its original fully charged capacity after 500 charge cycles. Charging
must be conducted using a Sepura approved charger.
Batteries have a finite life; they will deteriorate if they are not charged on a periodic
basis. Batteries should not be left for more than 6 months without r echarging as the
cells will deteriorate and the batteries will not be recoverable.
The latch on the battery is specified to 6000 insertions (equivalent to 8 insertions per day over
2 years if used every day of the year.
Many professional and consumer products from cycle lamps to mobile phones and laptop
computers now use rechargeable lithium-ion (Li-ion) cells because of their small size and high
energy density. When charged and used correctly these are reliable and safe. There are
some simple precautions that should be observed when charging and using Li-ion packs. The
precautions below apply to most/all Li-ion battery packs and chargers.
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1. Properly designed Li-ion batteries and chargers contain effective protection circuitry to
safeguard the pack during charging and use, but in some very rare circumstances of
internal cell failure during charging, the protection circuits may be ineffective and the pack
may overheat. To minimise the chance of this causing further damage, Li-ion battery
chargers should be used in well ventilated areas away from combustible material. For
example, don’t charge your TETRA battery, mobile phone battery or laptop battery with
the battery and charger very near to curtains, soft furnishings, paper or other combustible
material.
2. Copy batteries are available for many products, particularly mobile phones and more
recently TETRA radios, including those made by Sepura. These may be cheaper than
approved batteries, but may not include protection features used in the approved battery,
so may be less safe and should not be used.
3. Use only Sepura approved chargers for charging Sepura products. Non-approved
chargers may incorrectly charge the battery, leading to premature failure, or render the
battery potentially unsafe.
4. Sepura batteries are designed to be rugged and to give good service. However, as is the
case for all Li-ion batteries, it is possible for extreme mechanical damage to weaken the
internal structure of the cells within the battery. Therefore, if the battery casing shows
signs of severe damage (not the minor scratches and bumps of everyday use), or has
been subjected to major mechanical abuse, do not continue to use the battery.
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COVERT ANTENNA
Covert antennas connect to the covert terminal using a ‘snap-on’ `type QMA connector.
COVERT FACILITY INTERFACE LEAD
The Covert Facility Interface Lead plugs to the bottom of the covert terminal unit at one end
with a secure connector. The Inductor / Microphone and RCU connect to the other two ends
of the Interface Lead. The kit is completed by the use of a wireless earpiece for the reception
of radio traffic.
REMOTE CONTROL UNIT
The RCU is a highly flexible accessory that can be customised to control the operation of the
terminal in a number of ways, according to operational requirements.
PTT
TONE Key
Minus Key
The rotary knob is used for switching the terminal on and off as well as selecting talkgroups
and the PTT is used when the user wishes to talk. All other keys can be customised from a
large selection of functions. This document describes the most common allocation of
functions on the RCU (see table below). The operation of the keys may vary if the terminal
has been customised to non default settings.
Key Brief Press & Release Press & Hold
TONE Tone Signalling Tone Signalling
Minus Decrease Volume Level Transmit Inhibit
Rotary Knob
Plus Key
OPTION Key
Plus Increase Volume Level Audio Interrupt
Minus+Plus - OPTION - Emergency Call
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SWITCHING ON/OFF
The rotary knob on the RCU is used for switching the terminal on and off, as well as selecting
talkgroups.
To switch the terminal on, move the rotary knob
from position 0 (fully anticlockwise). This action will
also cause the terminal to select the talkgroup that
has been configured on the position that the rotary
knob was moved to.
To switch the terminal off, move the rotary knob to
position 0. The terminal will start switching off after
a customisable number of seconds, 5 by default,
and generate continuous white noise or a repeated
high-low tone (Switching Off Alert), depending on
customisation, until it switches off. During that
short time, the rotary knob can still be moved to a
talkgroup position and stop the terminal from
switching off.
Rotary Knob
Position 0
(fully anticlockwise)
The terminal does not immediately switch off, to allow position 0 to be used as a
starting position to aid talkgroup selection.
The terminal should always be turned off before the battery is removed. Do not
disconnect the battery whilst the terminal is still turned on, as this will prevent any
configuration changes that may have been made, from being saved.
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OPERATING MODES & CALL TYPES
OPERATING MODES
The most reliable way of using a TETRA terminal is Trunked Mode Operation (TMO). This
uses the TETRA network and provides maximum coverage.
If however a TETRA network is not available, for example inside certain buildings or rural
areas, the terminal may be used to communicate directly with other TETRA terminals by
selecting Direct Mode Operation (DMO).
When the terminal has selected a TMO talkgroup but it is outside the coverage of the
network, it will sound either continuous white noise or a repeated high-low tone, depending on
customisation.
DMO supports half duplex group calls and emergency calls.
A Direct Mode Gateway may be used to enable communications between a number of
terminals operating in Direct Mode and others operating in Trunked Mode. A Direct Mode
Repeater may be used to extend the range of DMO communications.
Switching to DMO means communications to other users on the network are not
possible, unless operating on the same group, or through a Direct Mode Gateway.
CALL TYPES
Sepura terminals support the following voice call types when used with an RCU:
Voice Call Type Description
A half duplex call where immediate communication can take
place between the calling and the called users without the
Group
Emergency
Broadcast
alerting process and without an explicit response from the
called user that they have answered. Each user needs
permission to transmit for each transaction.
A high priority call, which pre-empts resources on the
network and other users.
A unidirectional mode of transmission. Terminals can only
receive this type of communication.
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GROUP CALLS
TALKGROUP SELECTION
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Each position on the rotary knob, apart from
position 0, corresponds to a different TMO or
DMO talkgroup.
When the rotary knob is moved to a new
position, a brief, high tone is sounded, if
customised, and either a TMO or a DMO
talkgroup is selected shortly afterwards.
For example, moving the rotary knob to
position 1 (the first position after the fully
anticlockwise position) will cause talkgroup
number 1 to be selected, which will in most
cases be the main Trunked Mode operational
talkgroup.
To aid talkgroup selection, the rotary knob can be first directly moved to position 0.
This will not cause the terminal to switch off, unless the rotary knob is not moved for a
few seconds. The desired talkgroup can then be located by counting upwards though
each position.
Position 9
(fully clockwise)
Position 0
(fully anticlockwise)
Although unlikely, if the network should not attach a TMO talkgroup or detach an
already selected TMO talkgroup, the terminal will sound either intermittent white noise
or a repeated high-low tone, depending on customisation, every 5 seconds.
CHANGING THE TALKGROUP FOLDER
If more than one talkgroup folder has been customised, a new talkgroup folder may be
selected by connecting the terminal to a PDA running the Radio Customisation Tool.
For more details on changing Talk Group Folders on surveillance terminals, see Radio
Customisation Tool User Guide, MOD-06-206.
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MAKING A GROUP CALL
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To transmit to the currently selected TMO or DMO talkgroup,
press and hold the PTT key. This action will first request
permission to transmit.
While the terminal is waiting for permission to transmit, it will
sound a white noise or tonal alert, depending on customisation,
every half second (Wait for Tx Alert). This alert may have been
customised differently between TMO and DMO.
If the communications channel is available, transmission will be
granted shortly afterwards and, in practice, the Wait For Tx Alert
may not be noticeable.
The user will be notified that transmission was granted, by either
a series of three white noise alerts or a tonal alert, depending on
customisation (Tx Granted Alert). Again, the Tx Granted Alert
may have been customised differently between TMO and DMO.
Speech can now be transmitted to the selected talkgroup, while
the PTT is held. Releasing the PTT will stop the current
transmission and allow other users to transmit.
If, however, the communications channel is not available because
another user is currently transmitting, the user will be prompted to
hold on to the PTT, waiting for transmission to get granted, by the
terminal continuing to sound the Wait for Tx Alert.
When the other user stops transmitting and the communications
channel becomes available, the alert ceases and the terminal
should get transmission granted and the Tx Granted alert is
generated as described above.
PTT
RECEIVING A GROUP CALL
An incoming group call initiated from another terminal will be received by the terminal without
any action required by the user.
CHANGING TALKGROUP WHILST ENGAGED IN AN ACTIVE GROUP CALL
If the user wishes to change talkgroup whilst involved in an active group call, simply move the
rotary knob to the desired position. The terminal will automatically leave the active group call
and select the new talkgroup.
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EMERGENCY CALLS
MAKING AN EMERGENCY CALL
The OPTION key on the RCU is normally customised to
make an emergency call. This special type of call can be
used if an emergency situation arises.
To avoid accidental operation of this feature, the OPTION
key must be held down for a customised period before it
operates (usually 5 seconds). When the key is pressed,
depending on customisation, an emergency status
message is automatically sent to a specific address or the
currently selected talkgroup, and/or an emergency
speech call is set up to one or more users.
If an emergency speech call is successfully set up, the
terminal will generate a high pitched alert and, if
customised, use live microphone to automatically initiate
transmissions without the user needing to press the PTT.
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OPTION Key
The emergency call can be programmed to react in a number of different ways:
Setting Description
Alarm Key
Activation Time
Live Microphone
Call Destination
Alarm Status Call
Alarm Priority
To guard against accidental operation, the key can be programmed to
activate the alarm only if depressed for a programmable period of time.
When the emergency call is set up, the terminal can be programmed to
transmit automatically for a period of time with live microphone. The
terminal, once finished transmitting can then go into receive mode for a
period of time without needing to use the PTT button.
This can be a cyclic operation, when the terminal continuously transmits
and receives until reset by either the user or the dispatcher, or it can be
programmed as a single-shot one transmit one receive operation or it can
cycle for a number of predetermined transmissions.
When the emergency call is set up, the call goes to the currently selected
TMO or DMO talkgroup, or it can be programmed to go to a specific
address.
When the emergency call is activated, the terminal can be programmed to
send an emergency status message (status code 0) to the currently
selected talkgroup, or to a specific address.
The terminal can be programmed with various priorities when the alarm
key is activated. This would typically be set as a pre-emptive call (priority
15), so that when activated, even if there is no network resource available,
the network will automatically release traffic channel resources for the call.
Current Location
TETRA Surveillance Terminals
User Guide
If the terminal is equipped with a GPS module, it can be programmed to
send the current location or last known position of the terminal.
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RECEIVING AN EMERGENCY CALL
The user need take no action; the emergency call will be received just like any other call. A
high pitched audible alert (Emergency Direct Setup Call Alert) will be activated leaving no
doubt that the call being setup is an emergency call.
During the transmissions from the call initiator, the receiving terminals will also receive an
intermittent alert (Emergency Call Non-Tx Alert) again leaving the receiving parties in no
doubt that this call is an emergency call.
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RCU KEYS
SOFT KEYS
Each of the four keys on the face of the
RCU can be customised from a large
selection of functions.
Each key as well as the combined press of
the Minus and Plus keys, can invoke two
functions each; one when briefly pressed
and released and another when held for one
second.
This allows maximum flexibility when
operational procedures change and thus
different functions are required to be
achieved.
The functions that have been customised by default on each key are described below.
TONE Key
Minus Key
Plus Key
OPTION Key
Because of the large selection of functions that each key can be customised from, it is
impractical to describe all possible combinations of functions on the RCU, so the
descriptions below are limited to the default customisation.
T
ONE SIGNALLING
Signalling tones can be sent to the selected talkgroup by pressing the TONE key. The user
will get a confirmation tone while the TONE key is pressed and the same tone will be sent
over the air as soon as possible.
The duration of each tone transmitted to the talkgroup will reflect the length of time that the
TONE key remained depressed, thus allowing short and long tones to be sent.
V
OLUME CONTROL
The volume level of the terminal can be controlled by briefly pressing the Plus and Minus
keys. There are 10 different volume levels available on Sepura terminals. When a new level is
set, either a brief white noise or high tone is generated, depending on customisation, to
indicate the new setting.
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W
HISPER MODE
This function is most useful when the operational conditions do not favour speaking at a
normal level and the user is required to whisper. Enabling this function increases the
sensitivity of the microphone, thus speech is transmitted louder than when not enabled.
To enable whisper mode, briefly press the Minus key when the volume is already set to the
minimum level. Depending on customisation, either a brief low-high tone or a long white noise
alert will be generated to indicate successful activation of the function.
To disable whisper mode and set the microphone sensitivity back to normal, briefly press the
Plus key. Depending on customisation, either a brief high-low tone or a long white noise alert
is sounded. It is important to note that the volume level is still at the lowest possible level.
The above method of disabling whisper mode, does not allow for volume to be
increased while whisper mode is active. The terminal can be customised to support an
alternative method for disabling whisper mode.
When whisper mode has been enabled as described above, thus volume is set to
minimum, briefly press the Plus key 9 times until maximum volume level is reached,
then briefly press the Plus key again to disable whisper mode, again, indicated by
either a brief high-low tone or a long white noise alert.
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A
UDIO INTERRUPT
If a user wants to urgently convey some information, but the communication channel is not
available, because another user is transmitting to the talkgroup, the audio interrupt function
can be used to interrupt the ongoing conversation and grant transmission to the user.
To interrupt an ongoing conversation, press and hold the Plus key for one second until a short
high tonal alert is generated, then press the PTT within 10 seconds. The terminal will then
request to transmit with pre-emptive priority and transmission will get granted to the user,
unless the ongoing transmission is of emergency priority.
The audio interrupt function can only be used when the terminal is operating in TMO.
If the key is pressed in DMO, the terminal will ignore it.
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T
RANSMIT INHIBIT
The terminal can be switched into transmit inhibit should the user enter an RF sensitive area
(e.g. a hospital). In this state, the terminal does not transmit under any circumstances in either
TMO or DMO, except when making an emergency call, if customised to do so.
While transmit inhibit is enabled, the terminal remains on the selected talkgroup and can still
receive conversations from this talkgroup.
To activate transmit inhibit press and hold the Minus key for one second until a brief low-high
tone is sounded.
Thereafter, any PTT presses will not result in transmission to be requested and a low tone will
be sounded for 1 second (Transmission Inhibited Alert).
Whilst transmit inhibit is active, it is only possible to select a new DMO talkgroup, provided
that the terminal is already operating in DMO. Any talkgroup selection, to or from TMO,
requires signals to be transmitted to the network, which is not allowed while transmit inhibit is
enabled. Thus, if the rotary knob is moved to a position at which the terminal is not able to
proceed with the talkgroup selection, an intermittent double tone will be generated until the
rotary knob is moved back to the original position (RCU Rotary Knob Out Of Step Alert).
Activating and deactivating transmit inhibit can automatically send a status message to a
customised destination to inform others of your current status.
As briefly mentioned above, the terminal may be customised to allow making an emergency
call whilst in transmit inhibit; however, the time to set up the call could be slightly increased.
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E
MERGENCY CALL
To make an emergency call, hold the OPTION key for the customised alarm key activation
time (usually 5 seconds).
For more details, see section on Emergency Calls above.
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GPS
The covert terminal is equipped with a high-sensitivity GPS unit specifically designed for
users operating in urban canyon environments.
The behaviour of the GPS function is highly customisable, both from the customisation tool
and over the air from a control room application.
The GPS functionality allows for both timed and/or distance based reporting. The terminal
may also be customised to send position data automatically alongside emergency calls or
status messages.
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LED INDICATIONS
LED Indication Description
Constant Red Terminal is in a call and transmitting
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Constant Green
Flashing Amber Incoming individual call or SDS/Status message
Two Red Flashes Call setup detected
Intermittent Flashing Amber TXI enabled or Fallback Mode detected
Intermittent Flashing Red Trying to connect to a network or battery low warning
Constant Amber Terminal is charging
Short green Flash Terminal is powering on
All LED indications are customisable and may be disabled.
Terminal is in a call and receiving or terminal is charging
and battery is fully charged
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ALERTS
Alerts are generated by the product under the circumstances given in the tables below. Some
alerts may have been customised to be tonal or white noise, or not to be sounded at all.
PRIMARY COVERT ALERTS
The following alerts are expected to be enabled in most covert terminals.
Alert Name Meaning
Battery Low
Alert
Battery Flat Alert Generated prior to the product
Key Click Alert Generated for every key press
RCU Rotary
Knob Click Alert
Volume Control
Soft Keys Alert
Switching Off
Alert
Whisper Mode
Enable Alert
Whisper Mode
Disable Alert
Transmit Inhibit
Enable Alert
Transmit Inhibit
Disable Alert
Transmission
Inhibited Alert
RCU Rotary
Knob Out Of
Step Alert
No Service Alert Network service is not available 775Hz 200ms,
No Selected
Group Alert
Clear Speech Pip
Tone Alert
Generated when low battery level is
detected
switching off owing to a flat battery
Generated for every key press and
hold
Generated when the rotary knob on
the RCU is moved to a new position
Alert to indicate volume has been set
using the volume up/down soft keys
Alert that the terminal is switching off 775Hz 200ms,
Alert to indicate that whisper mode has
been enabled
Alert to indicate that whisper mode has
been disabled
Alert to indicate that transmit inhibit
has been enabled
Alert to indicate that transmit inhibit
has been disabled
Alert to indicate that attempted
transmission is not allowed
Alert to indicate that attempt to change
talkgroup cannot be completed
Generated when there is no selected
talkgroup
Generated whilst in a call without
encryption
Tonal
Specification
933Hz 50ms, Off 22.5ms,
generated 4 times,
repeated every 10s
933Hz 400ms, Off 300ms
Generated four times
1500Hz 100ms -
1500Hz 100ms -
1500Hz 100ms White noise 100ms
400Hz 200ms,
Generated twice
988Hz 100ms, 1319Hz
200ms
1319Hz 100ms, 988Hz
200ms
988Hz 100ms, 1319Hz
200ms
1319Hz 100ms, 988Hz
200ms
933Hz 1s -
1200Hz 200ms, Off
80ms, 1200Hz 200ms,
repeat period = 2s
400Hz 200ms,
Generated twice
775Hz 200ms,
400Hz 200ms,
Generated twice
775Hz 100ms
Repeated
Repeat period = 5s
White Noise
Specification
-
-
White noise, Continuous
White noise 1.9s
White noise 1.9s
-
-
-
White noise, Continuous
White noise 920ms, Off
80ms, Continuous
-
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Alert Name Meaning
Wait For Tx Alert User has pressed PTT but not yet
been TX granted
Tx Granted Alert Alert when user is granted permission
to transmit in a half duplex call
Emergency
Direct Call Alert
Emergency Call
Non Tx Alert
Tone Signalling
Feedback Alert
Alert to indicate start of Emergency
Direct Setup Call to both initiator and
receiver
Alert in Emergency Group call
generated while the terminal not in
transmit
Generated while a key customised to
transmit tone signalling is pressed
Tonal
Specification
783Hz 100ms, Off 400ms
Continuous
659Hz 200ms White noise 100ms, Off
988Hz + 1046Hz 100ms,
1480Hz + 1568Hz 100Ms
Generated twice
Off 7.1s then
554Hz 100ms,
494Hz 100ms,
Generated twice.
Continuous
800Hz -
White Noise
Specification
White noise 100ms, Off
400ms, Continuous
100ms, Generated 3
times
-
-
SECONDARY COVERT ALERTS
The following alerts are not of paramount significance and are not expected to be generated
by covert terminals. They are however supported and could be enabled is operational
procedures require so.
Alert Name Meaning
Beep Alert Response to user initiated input 933Hz 200ms Warning Alert Response to non user initiated events 933Hz 200ms Invalid Function
Alert
In Service Alert Network service became available 933Hz 200ms New Call Alert Alert when call setup is complete 523Hz 300ms,
Call Cleared Alert Generated when a call is cleared. 783Hz 300ms,
Tx Not Granted
Alert
Start Listening
Alert
Stop Listening
Alert
Stop Talking
Alert
User error 933Hz 1s -
Alert when user is not granted
permission to transmit in a half duplex
call
Alert in half duplex call when someone
else has been given Tx permission
Alert in half duplex call when Tx
permission granted to someone else
has ended and no-one else has Tx
permission
Alert for initiator of Live Mic emergency
call at end of each Tx cycle
Tonal
Specification
783Hz 300ms
523Hz 300ms
659Hz 1s White noise 100ms, Off
783Hz 200ms -
523Hz 1s -
523Hz 1s -
White Noise
Specification
-
-
100ms, Generated twice
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HEALTH AND SAFETY
Use only a slightly damp soft cloth for cleaning all exterior surfaces. Do NOT use chemical
aerosol or abrasive cleaners.
To ensure efficient operation, clean the battery contacts periodically with a soft, dry cloth.
Never leave the terminal in extreme temperatures (over 55°C), for example behind glass in
very hot, direct sunlight.
TRANSMIT INHIBIT
The terminal can be switched into transmit inhibit should the user enter an RF sensitive area
(e.g. a hospital). This mode is indicated by the LED rapidly flashing yellow 4 times at
approximately two second intervals. In this state, the terminal does not transmit under any
circumstances in either TMO or DMO, except when using the emergency button if customised
to do so. The terminal remains on the selected group and in some circumstances can still
receive conversations from this talkgroup.
The terminal can automatically send a status message to the customised destination when it
enters transmit inhibit, and again when it leaves transmit inhibit.
Making an emergency call whilst in transmit inhibit; however, the time to set up the call could
be slightly increased.
RADIATION PROTECTION
The terminals fully comply with the NRPB specification EN50361 and the ICNIRP guidelines
for exposure to electromagnetic fields mandated for mobile phones (2W per kg over a 10g
sample).
ELECTRO MAGNETIC COMPATIBILITY
The terminals meet the EMC requirements specified by the ETSI specification ETSI EN 301
489-18.
TYPE APPROVAL
The terminals have been self-certified to RTTE Directive EN 303 035-1 and CE marked to
1999/05/EC.
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ACCESSORIES
Only accessories supplied or approved by Sepura Limited are recommended for use with the
terminals. Any accessory used that is not supplied or approved by Sepura Limited could
cause damage to the terminals and may invalidate the warranty. For safety reasons Sepura
Limited do not recommend that accessories be used with a terminal without first gaining
approval from Sepura Limited to do so.
B
ATTERY SAFETY
Please observe the following before handling batteries:
To prevent injury, do not allow metal objects to contact or short circuit the battery terminals.
Make sure that the battery terminals do not become dirty.
Do not immerse in water or incinerate.
If you need to replace the battery, use the Sepura Limited approved battery types.
B
ATTERY DISPOSAL
Batteries must be disposed of in the correct manner according to Sepura environmental
policy. If in any doubt, refer to your supplier or local Sepura Limited representative.
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GLOSSARY
Term Description
DMO Direct Mode Operation
DMO Gateway A device which allows users working in direct mode to
communicate with users in trunked mode. (This is often used to
extend the working range of a terminal)
Full duplex (or duplex) Full duplex calls are telephone type calls in which both parties
can talk simultaneously.
ETSI European Telecommunications Standards Institute
Talkgroup folder (or folder) Folders are used to organise your Talk Group list and to speed
up the selection of your favourites
GPS Global Positioning System
GSM Global System for Mobile Communications
Half duplex Half duplex calls are when only one party can talk (transmit) at
any time.
LED Light Emitting Diode
NRPB National Radiological Protection Board
PTT Press To Talk
RCU Remote Control Unit
RF Radio Frequency
Talkgroup A predefined group of users.
TETRA Terrestrial Trunked Radio
TMO Trunked Mode Operation
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NOTICE
All rights reserved. This document may not be reproduced in any form either in part or in
whole without the prior written consent of Sepura Limited, nor may it be edited, duplicated or
distributed using electronic systems.
Company and product names mentioned in this document may be protected under copyright
or patent laws.
The information in this document is subject to change without notice and describes only the
product defined in this document. This document is intended for the use of Sepura Limited’s
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.
CONTACT DETAILS
Sepura Limited
Radio House
St Andrew’s Road
Cambridge CB4 1GR
United Kingdom
Web : www.sepura.com
Tel: +44 (0)1223 876000
Fax: +44 (0)1223 879000
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