Sepura plc STP8040 TETRA Portable Terminal User Manual 3
Sepura plc TETRA Portable Terminal 3
Contents
User Manual 3
sepura
Mobile & Gateway Interface Specification
SB-P-06-4066
PRODUCT BULLETIN
COMMERCIAL IN CONFIDENCE
© SEPURA PLC 2009
SB-P-06-4066 Sepura
Commercial in Confidence Page 2 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Contents
1 PREFACE .......................................................................................................................................... 6
1.1 INTRODUCTION............................................................................................................................... 6
1.2 TERMINOLOGY ............................................................................................................................... 6
1.3 ABBREVIATIONS ............................................................................................................................. 6
1.4 CONVENTIONS ............................................................................................................................... 6
2 INTERFACE OVERVIEW .................................................................................................................. 7
2.1 TRANSCEIVER ................................................................................................................................7
2.2 CONSOLE....................................................................................................................................... 7
2.3 AIU MK1 ....................................................................................................................................... 8
2.4 AIU MK2. ...................................................................................................................................... 8
2.5 EXAMPLE INTERCONNECT BLOCK DIAGRAM ...................................................................................... 9
3 DECLARTION OF COMFORMITY.................................................................................................. 10
4 CONSOLE INTERFACE.................................................................................................................. 12
4.1 CONNECTOR DETAILS ................................................................................................................... 12
4.2 TRANSCEIVER CONNECTOR........................................................................................................... 12
4.3 CONSOLE/AIU CONNECTOR .......................................................................................................... 12
4.4 SIGNAL DETAILS ........................................................................................................................... 13
4.5 LINE LEVEL AUDIO SUPPORT ........................................................................................................ 14
5 POWER SUPPLY INTERFACE....................................................................................................... 16
5.1 CONNECTOR DETAILS ................................................................................................................... 16
5.2 SIGNAL DETAILS ........................................................................................................................... 16
5.3 SPEAKER CONFIGURATIONS .......................................................................................................... 17
6 AUDIO ACCESSORY INTERFACE (AAI)....................................................................................... 18
6.1 CONNECTOR DETAILS ................................................................................................................... 18
6.2 SIGNAL DETAILS ........................................................................................................................... 18
6.3 AUDIO ACCESSORY IDENTITY TABLE ............................................................................................. 19
6.4 ACCESSORY KEYS TABLE ............................................................................................................. 20
6.5 AUDIO GAIN.................................................................................................................................. 20
6.6 AIU MK 1 JACK CONNECTORS...................................................................................................... 21
6.6.1 CONNECTOR DETAILS................................................................................................................ 21
6.6.2 JACK SIGNALS........................................................................................................................... 21
6.7 AIU MK 2 JACK CONNECTORS...................................................................................................... 22
6.8 AAI2 – VIA JACK CONNECTOR ....................................................................................................... 22
7 RCI CONNECTIONS........................................................................................................................ 23
7.1 CONNECTOR DETAILS................................................................................................................... 23
7.2 SIGNAL DETAILS ........................................................................................................................... 23
8 DESK MOUNT UNIT CONNECTORS............................................................................................. 24
8.1 DESK MICROPHONE/HEADSET CONNECTOR .................................................................................. 24
8.1.1 CONNECTOR DETAILS................................................................................................................ 24
8.1.2 SIGNALS ................................................................................................................................... 24
8.2 FOOT SWITCH CONNECTOR .......................................................................................................... 24
8.2.1 CONNECTOR DETAILS................................................................................................................ 24
8.2.2 SIGNALS ................................................................................................................................... 24
8.3 LOUDSPEAKER CONNECTOR ......................................................................................................... 24
9 DATA CONNECTOR INTERFACE.................................................................................................. 25
SB-P-06-4066 Sepura
Commercial in Confidence Page 3 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
9.1 CONNECTOR DETAILS ................................................................................................................... 25
9.2 SIGNAL DETAILS ........................................................................................................................... 25
10 ANTENNA’S................................................................................................................................... 27
10.1 CONNECTOR DETAILS ................................................................................................................. 27
10.2 SIGNAL DETAILS ......................................................................................................................... 27
11 GPS ANTENNA ............................................................................................................................. 28
11.1 CONNECTOR DETAILS ................................................................................................................. 28
11.2 SIGNAL DETAILS ......................................................................................................................... 28
12 CONSOLE AND AIU CABLE SPECIFCATION ............................................................................ 29
12.1 CABLEFORM MECHANICAL DETAILS............................................................................................. 29
12.2 CABLEFORM GROMMET .............................................................................................................. 30
13 NOTICE.......................................................................................................................................... 31
SB-P-06-4066 Sepura
Commercial in Confidence Page 4 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Legal Responsibilities
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 plc’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 plc.
The document has been prepared to be used by professional and properly trained personnel, and the
customer and/or other party assumes full responsibility when using it. Sepura plc welcomes
customer and/or other party comments as part of the process of continuous development and
improvement of the documentation.
The information or statements given in this document concerning the suitability, capacity, or
performance of the mentioned hardware or software products cannot be considered binding but shall
be defined in the agreement or arrangement made between Sepura Plc and the customer and/or
other party.
However, Sepura plc has made all reasonable efforts to ensure that the instructions contained in the
document are adequate and free of material errors and omissions. Sepura plc will, if necessary,
explain issues which may not be covered by this document.
Sepura plc’s liability for any errors in this document is limited to the documentary correction of errors.
Sepura plc will not be responsible in any event for errors in this document or for any damages,
incidental or consequential, (including monetary losses), that might arise from the use of this
document or the information in it.
This document and the product it describes are considered protected by copyright according to the
applicable laws.
Other product names mentioned in this document may be trademarks of their respective companies,
and they are mentioned for identification purposes only.
SB-P-06-4066 Sepura
Commercial in Confidence Page 5 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
ISSUE HISTORY
Version Date Change
Version 1 1st June 2006 Supersedes SB-P-05-4042
Version 2 24th July 2006 Added declaration of conformity statement.
Added abbreviations table.
Clarified difference between Mk1 and Mk2 AIU’s.
Added cable form details.
Version 3 22nd Sept 2006 Clarified data interface = PEI port
Corrected AIU Mk1 and Mk2 contents re audio accessory
support
Clarified MIC and EAR on RCI port no longer supported
AIU Mk1 superseded by AIU Mk2
Added Input freq spec and levels for GPS antenna
Version 4 19th Jan 2007 3679 parameter details added
SRM/G2 and 3 digital I/O capability clarification.
Version 5 17th April 2007 Added reverse battery polarity comment and note re digital
input resistance.
Corrected block diagram GPS connector.
Added GPS LNA gain requirement
Version 6 17th Feb 2009 Incorporates V9 changes (AIS Issue 7 and 8 of the
development document)
SB-P-06-4066 Sepura
Commercial in Confidence Page 6 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
1 PREFACE
1.1 Introduction
This product bulletin describes the electrical and physical interfaces of the 2000 and 3000 series of
Sepura Mobile and Gateway products.
It has been produced to enable accessory providers to interface their products to these radio
platforms.
1.2 Terminology
Term Definition
Signal names with lower case “n”. These signals are active low.
1.3 Abbreviations
Convention Description
AAI Audio Accessory Interfaces
AIU Application Interface Unit
DMU Desktop Mount Unit
MDT Mobile Data Terminal
RCI Remote Control Interface
RCU Remote Control Unit
PEI Peripheral Equipment Interface
PTT Press-to-talk switch.
1.4 Conventions
Convention Description
Note icon, emphasizes related, reinforcing, or important information.
Caution icon. Indicates actions or processes that require caution from the user
SB-P-06-4066 Sepura
Commercial in Confidence Page 7 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
2 INTERFACE OVERVIEW
The Mobile and Gateway products are available as a one, two or three unit solution supporting a mix
of up to two Consoles or Application Interface Units (AIU) plus the transceiver, allowing the radios to
be used in many different applications and support up to 4 audio accessories such as handsets, fist
microphones and headsets.
2.1 Transceiver
The SRM and SRG series of transceivers support:
• 2 off Console Interfaces - each can support a Console, an AIU, or an external data
application connected via a Sepura data lead. Any combinations of units on the two Console
Interfaces are possible. The Console interface is also used to customise and program the
unit via Radio Manager.
• 1 off Power interface providing connection for the battery, ignition sense line and also the
transceivers speaker.
• 3 digital inputs and 1 digital output on the power interface connector
• 1 off RF connector for the Tetra antenna.
• GPS connector (optional).
The SRM2000, SRG2000 and SRM3500 series of transceivers are no longer available;
they have been superseded by the SRG3500 transceiver.
2.2 Console.
Each Console provides:
• 2 off AAI ports allowing connection of two audio accessories. Each AAI supports optional
hook signalling, PTT input and up to 6 accessory keys.
• 1 off data interface with RS232 PEI port allows connection to an external data application via
a Sepura Data Lead. The interface is also used to customise and program the unit via Radio
Manager.
• No digital inputs or outputs are available from the console
SB-P-06-4066 Sepura
Commercial in Confidence Page 8 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
2.3 AIU Mk1
The AIU Mk1 provides:
• 2 off AAI ports allow connection of two audio accessories. Each AAI supports optional hook
signalling, PTT input and up to 6 accessory keys. AAI2 audio connections are also mirrored
to the Jack sockets, allowing flexibility in the connection of audio accessories.
• 1 off data interface with RS232 PEI port allowing connection of an external data application
via a Sepura Data Lead. The interface is also used to customise and program the unit via
Radio Manager.
• 3 digital inputs.
• 1 digital output.
The AIU Mk1 (part number 300-00087) is no longer available, it has been superseded by
the AIU Mk2 (part number 300-00217).
2.4 AIU Mk2.
The AIU Mk2 supersedes the MK1 device and provides
• 1 off AAI allowing connection of one audio accessory. The AAI1 supports optional hook
signalling, PTT input and up to 6 accessory keys.
• AAI2 is only presented on a Jack socket, allowing connection of a second audio accessory.
• 1 off RCI port enabling control of the transceiver via an RCU such as the Sepura 300-00164.
• 1 off data interface with RS232 PEI port allowing connection of an external data application
via a Sepura Data Lead. The interface is also used to customise and program the unit via
Radio Manager.
• 3 digital inputs.
• 1 digital output.
SB-P-06-4066 Sepura
Commercial in Confidence Page 9 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
2.5 Example interconnect block diagram
The diagram shows just one of many possible solutions and highlights the flexibility of the
Sepura product.
Console Interface
(15 way HD Type)
• Proprietary console interface
signaling
• Standard RS232 PEI Port for
connection of third party
equipment and transceiver
programming.
• Microphone line audio
• Earpiece line audio
• Console power
• On/Off Control
• Ground
Data Interface Connector
(15 Way HD Type)
• Standard RS232 PEI
Port for connection of
third party equipment
and transceiver
programming
• 4 Programmable I/O
(AIU only)
Console
or
AIU Mk1
Audio Accessory Interface (10 way Hirose)
• Microphone input
• Earpiece output
• Hooking input
• PTT input
• Accessory soft key input
• Accessory identifier input
• Ground
Power Supply Interface
(15 way D Type)
• Supply input and ground
reference
• Ignition sense input
• Loudspeaker Output
• 4 Programmable I/O
A
ntenna Connector
BNC
Audio Accessory 2
Audio Accessory 1
MDT or
Programmer
Battery/
Ignition detect
Digital I/O
Loudspeaker
Data Lead
15 Way HD Type to
9 Way D Type
Console to Transceiver Cable
15 way HD type to 16 way Hirose
GPS Connector (option)
SMC
Transceiver
SB-P-06-4066 Sepura
Commercial in Confidence Page 10 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
3 DECLARTION OF COMFORMITY
Sepura mobile terminals and approved accessories are compliant with the essential requirements of
the 1999/05/EC Radio and Telecommunications Terminal Equipment (R&TTE) Directive. The mobile
variants and accessories are specified in the Declaration of Conformity number DC/C 02001-3.
A copy of the declaration is available from Sepura on request.
As such, Sepura mobile terminals are compliant with the following mandatory specifications:
• Safety to relevant parts of EN 60950 (Safety of Information Technology Equipment). This
includes the Low Voltage Directive (LVD);
• Electromagnetic Compatibility (EMC) to relevant parts of EN 301 489 (Electromagnetic
Compatibility & Radio Spectrum Matters);
• TETRA air interface to EN 303 035 (Terrestrial Trunked Radio (TETRA); Harmonized EN for
TETRA equipment covering essential requirements under article 3.2 of the R&TTE Directive);
In addition, Sepura mobile terminals and Third Party Accessory must also maintain conformance in
the following areas:
• Dust & moisture protection to IP54 or greater to meet the needs of the user environment and
the relevant parts of ETS 300-019; CEN1789:2000
• Protection against Acoustic Shock to relevant parts of ITU P.360. Sepura mobile terminals
comply with the maximum audio levels specified for Longer Duration disturbances.
• The performance of the mobile must not be compromised by the r.f. field generated by the
mobile interfering with the accessory (different versions of Sepura mobile terminals operate
over frequencies within the range 350 MHz to 900 MHz and generate signals complying with
TETRA standards).
For example no audio interference should occur when a TETRA portable transmitting at 1 W
r.f. power, at frequencies between 300 MHz and 900 MHz, is held within 1cm of the
accessory.
• The product shall not degrade the performance of a SRMG3500 installation when tested to
TETRA EMC spec. EN 301489-1&18 V1.6.1 (2005-09) Including Annex B.
• The combination of the accessory and the mobile must be “fit for purpose”. The use of an
accessory must not make the mobile difficult or awkward to use, or in any way degrade its
performance.
It is most important that any accessory designed for use with Sepura mobile terminals
does not affect any of the current approvals
SB-P-06-4066 Sepura
Commercial in Confidence Page 11 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Sepura requires the designer/manufacturer to:
Allow Sepura to review, and comment on, the “Test Plan” — this document will describe the tests to
be performed by, or on behalf of, the Third Party accessory designer/manufacturer to confirm
continued compliance with the above specifications,
• Provide Sepura with a “technical file”, which shall contain design details and results of tests
undertaken and the appropriate Declaration of Conformity. The information must be
approved by Sepura prior to the Third Party supplying the Accessory to customers.
• Sepura must be notified of any amendment to the approved Accessory which could affect the
continued conformance. In the event that there is a problem, perceived or real, with the
interaction of Sepura mobile terminals and the supplied Third Party Accessory, the Third
Party must make available to Sepura documentary evidence of relevant test results.
The “technical file” must be approved by Sepura prior to the Third Party supplying the
Accessory to customers.
SB-P-06-4066 Sepura
Commercial in Confidence Page 12 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
4 CONSOLE INTERFACE
There are a number of Console Interfaces:
• 2 off on the Transceiver designated ‘Interface1’ and ‘Interface 2’.
• 1 off on the Console used to connect the Console back to the transceiver via ‘Interface1’ or
‘Interface 2’.
• 1 off on AIU Mk1 and 2 designated ‘TRX’ used to connect the Console back to the
transceiver via ‘Interface1’ and ‘Interface 2’.
4.1 Connector details
4.2 Transceiver connector.
Connector Type: 15 way high density D type female
Connector viewed from the rear of the Transceiver
4.3 Console/AIU connector
Connector Type: Hirose 16 way male header,
Sepura part number 3513 999 99318
Mating plug: Hirose number DF11-16DS-2C
11 12 13 14 15
1 2 3 4 5
6 7 8 9 10
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14 16
Connector viewed from the rear of the Console.
SB-P-06-4066 Sepura
Commercial in Confidence Page 13 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
4.4 Signal details
Transceiver
Pin No.
(15 way HD
D-type)
Console Pin
No.
(16 way
header)
Signal NameError!
Reference source not found.
Signal Direction Signal Function Signal Characteristics
1 14 CONSOLE_TXD Input to control
subsystem
Control data from the
console.
RS232 levels
2 16 CONSOLE_RXD Output from control
subsystem
Control data to the
console.
RS232 levels
3 5 PWR_ON Output from console
subsystem
Switch signal to turn
transceiver on2.
Low going edge triggered. Pull to
0 V to switch-on.
(Pull up to un-switched 12 V rail
in the transceiver.)
Assertion time: 10 ms
4 15 POWER_OUT Output from PSU
subsystem
Power supply to console 13V nominal supply, enabled
internally to the transceiver.
Includes over current/temperature
protection.
Rated for 280 mA nominal load
400 mA max.
5
Console
interface 1
2 LS_LINE_13 Output from audio
subsystem
Audio line output to
console.
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 load.
Output from audio
subsystem
Audio line output to
console.
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 load.
5
Console
interface 2
2 LS_LINE_13
Line output from audio
subsystem.
LINE AUDIO OUT
See note 3 below
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 load.
6 4 LS_LINE_2 Output from audio
subsystem
Ground return for audio
line output.
Ground to audio star point
7
Console
interface 1
1 MIC_LINE_SIG Single function: input to
audio subsystem.
Audio line input signal from
microphones connected to
console.
Maximum operating level (≅ FSD
on speech ADC) 0.65 V pk sine,
AC coupled, into 600 load
impedance.
Reserved input function Reserved input function Reserved input function
Input to audio
subsystem
Microphone input. Audio in: maximum operating
level (≅ FSD on speech ADC)
0.65 Vpk sine, AC coupled, into
600 load impedance.
7
Console
interface 2
1 MIC_LINE_SIG
Line input to audio
subsystem
LINE AUDIO IN
See note 3 below
Audio in: maximum operating
level (≅ FSD on speech ADC)
0.65 Vpk sine, AC coupled, into
600 load impedance.
8
Console
interface 1
3 MIC_LINE_GND Input to audio
subsystem.
Ground return for
microphone input.
Main ground to audio star point
via 100 resistor.
Input to audio
subsystem.
Ground return for
microphone input.
Main ground via 100 resistor.
Input voltage must be < 0.3 V (to
ensure input functions as
microphone input).
8
Console
interface 2.
3 MIC_LINE_GND
Reserved function Reserved function Do NOT tie to ground
9 9 RS232_DCD Output from control
subsystem
RS232 levels
10 7 RS232_RXD Output from control
subsystem
RS232 levels
11 12 RS232_TXD Input to control
subsystem
RS232 levels
12 11 RS232_RTS Input to control
subsystem
Hardware flow control RS232 levels
SB-P-06-4066 Sepura
Commercial in Confidence Page 14 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
13 10 RS232_CTS Output from control
subsystem
Hardware flow control RS232 levels
14 8 RS232_DTR Input to control
subsystem
Data terminal ready RS232 levels
15 13 GND - Power Ground and return
for digital paths.
-
metal shell 6 Screen - Over-all cable screen Connect to digital GND
Notes:
1. Intentionally blank
2. The mechanism to switch the transceiver off from the console uses a Sepura proprietary
message sent over the console control data interface (pins 1 and 2).
3. Line level audio is supported on the 380-430MHz band transceiver with V9 software (or
latter) plus the appropriate Feature License Code (part number 600-00033) installed via
Radio Manager.
Please see section 4.5 below for more details.
380-430MHz radios can be identified by having “W” as the fifth character of the nineteen
character hardware code.
4.5 Line Level Audio Support
The following table is a subset of the table in 4.4 showing only the relevant connections for Line
Level audio:
• Line Level Audio IN (pins 7 and 8 on Console Interface 2) and
• Line Level Audio OUT (pins 5 and 6 on Console Interface 2)
Transceiver
Pin No.
(15 way HD
D-type)
Console Pin
No.
(16 way
header)
Signal NameError!
Reference source not found.
Signal Direction Signal Function Signal Characteristics
5
Console
interface 2
2 LS_LINE_13 Line output from audio
subsystem.
LINE AUDIO OUT
See note 3 above
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c. coupled,
into 600 load.
Line
Audio
OUT
pair
6
Console
interface 2
4 LS_LINE_2 Output from audio
subsystem
Ground return for
audio line output.
Ground to audio star point
7
Console
interface 2
1 MIC_LINE_SIG Line input to audio
subsystem
LINE AUDIO IN
See note 3 above
Audio in: maximum operating level
(≅ FSD on speech ADC) 0.65 Vpk
sine, AC coupled, into 600 load
impedance.
Line
Audio
IN
pair
8
Console
interface 2.
3 MIC_LINE_GND Input to audio
subsystem.
Ground return for
microphone input.
Main ground via 100 resistor.
Input voltage < 0.3 V (to ensure
input functions as microphone
input).
metal shell 6 Screen - Over-all cable screen Connect to digital GND
It is expected that a 3rd party will construct a bespoke cable to bring the above connections into use.
A splitter/breakout box (300-00221) is available to allow both connection of a Console and facilitate
simple connection by a third party cable (see over leaf).
SB-P-06-4066 Sepura
Commercial in Confidence Page 15 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Console attached to Interface 2 with Line
Audio enabled If a console is connected to
Console Interface 2 and Line Audio is also
enabled, you cannot attach and accessory with
an earpiece. This is because the audio is set
at a specific level
Line -out Audio,
No Mic, No
Sidetone
PEI data
Line -out Audio,
with Mic
Light-Bar
PA Loudspeaker
DAT
recorder
Call Detail
Recorder
PTT
Handsfree mic
A console connected
to Console Interface
1 can support the full
range of accessories
– even with Line
Audio enable
Only one of these options may be programmed at a time by Radio Manager
Standard Remote Console Lead (0.5m, 2m, 5m and 10m)
300-00221 Splitter/Breakout Box
The above shows a just one possible installation option with two consoles, the splitter/breakout box together
with what accessories may be attached whilst Console Interface 2 is programmed to support Line Level
Audio.
A third-party MDT manufacturer could equally attach his MDT audio IN and OUT in place of the items shown
in Red above
For more details - please refer to:
• Feature Description V9 bulletin number MOD-08-538 for details on the options available whilst using
Line Level Audio.
• Radio Manager v1.5 onwards
• V9 Training pack/course
SB-P-06-4066 Sepura
Commercial in Confidence Page 16 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
5 POWER SUPPLY INTERFACE
There is a single Power Supply Interface located on the rear panel of the Transceiver.
5.1 Connector details
5.2 Signal details
Pin
Number SRM Signal
Name Input/
Output SRM2
Description Performance
1,2,9,10 GND_CAR I Supply input 0V
4,5,11,12 12V_CAR I Supply input 17V absolute max.
15.6V max operating
13.2V nominal,
10.8V min. operating
Abs. max operating current 7.5A
See notes below.
I(off) <5mA
I(stby, registered) <450mA
I(rx, speech full volume) <2.3A
I(Tx, 10W single slot) <5.1A
All currents assume a single Console connected.
Reverse polarity protection (see note 9)
3 IGN_SENSE I On-Off See notes overleaf.
6 LS_B O Loudspeaker See signal LS_A
7 GPI_1 I Programmable
I/O input 1
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
(see also note 10)
8 GPI_3 I Programmable
I/O input 3
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
(see also note 10)
13 LS_A O Loudspeaker Typical solution is a balanced 4 ohms single speaker with
8W maximum load power.
The speaker drive is rated to support two parallel 4 ohm
speakers in a balanced 2 ohm configuration.
Speakers with power rating of less than 8W may be prone
to damage.
See section 5.3
14 ODO_1 O Programmable
I/O output
Open drain, active low.
500mA max sink current
15.8V max external voltage
Protected against inductive loads.
VOL max = 200mV @ 0.5A
15 way male D type
Connector viewed from the rear of Transceiver.
SB-P-06-4066 Sepura
Commercial in Confidence Page 17 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
15 GPI_2 I Programmable
I/O input 2
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
(see also note 10)
Screen Screen
Notes:
1. The Transceiver will power up if the on/off key (PWR_ON) is held ‘on’ on the Transceiver
regardless of the state of the ignition (IGN_SENSE) signal.
2. The Transceiver hardware will power up if the ignition line (IGN_SENSE) goes high at the
same time that the power input goes high and the power input is >10V. The power input
must rise at a rate of >100V/s for the product to power up.
3. The Transceiver hardware will power up if the power input is present and >10V and the
ignition line (IGN_SENSE) goes high.
4. The mechanism to switch the transceiver off from the console uses a message sent over the
console interface.
5. The Transceiver software is able to turn the Transceiver off even if the ignition (IGN_SENSE)
is high.
6. A Transceiver software parameter 3679 – Inactivity Timer - can be configured so that the
Transceiver will switch off immediately the ignition (IGN_SENSE) goes low or after a defined
period of inactivity.
7. Neither of the power up signals; PWR_ON and IGN_SENSE, maintains the Transceiver
power on (i.e. they are non-latching). The Transceivers own software is responsible for
holding the Transceiver internal power supply on.
8. It is NOT possible to disable the ability of Console Mode button to power the radio ON or
OFF
9. Reverse polarity protection is provided. When reverse polarity connected a diode allows in
excess of 10A to flow through it, this will cause the external fuse to break and cut off the
battery power without damaging the radio.
10. There is a pull-down resistance on each digital input. The resistance to ground, will vary in
the range 10k to 27k ohms depending on the applied input voltage, this because there is a
resistor divider network feeding a transistor junction
5.3 Speaker configurations
Typically only one 4ohm 8w speaker is connected to the
transceiver
However the speaker driver is rated to support two parallel
4ohm speakers in a balanced 2 ohm configuration as shown
below.
No dual speaker adapter cable is currently available from
Sepura, it is expected that the installer will manufacture an
appropriate splitter cable
SB-P-06-4066 Sepura
Commercial in Confidence Page 18 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
6 AUDIO ACCESSORY INTERFACE (AAI)
There are two AAI ports designated AAI1 and AAI2 located on the Console and AIU. A subset of
AAI2 connections are duplicated on two jack sockets on AIU Mk1.
AIU Mk2 supports the AAI2 interface via jack connectors only
6.1 Connector details
Header: Sepura 3513 999 99316
Mating plug: Hirose number DF11-10DS-2C
6.2 Signal details
Pin
Number Signal Name Input/
Output Description Comment
1 ACC_ID I Accessory Identity 5V ADC input with internal 47k pull-up. See section 6.3
2 GND - Main Ground return -
3 SCN - Screen Connection -
4 ACC_KEYS I Accessory Keys 5V ADC input with internal 330R pull-up. See section 6.4
5 nON_HOOK I Hook Signal 5V CMOS input, active low.
Internal 47k pull up to 5V
6 nPTT I PTT input 5V CMOS input, active low.
Internal 47k pull up to 5V
7 MIC_SIG I Microphone input
Console & AIU mk. 1 1, 2, 3
• Sensitivity at “normal” setting = 100 mVpp for max.
modulation.
• Sensitivity at default “high” setting = 10 mVpp for max.
modulation.
• DC bias via internal 2.2 k pull-up to 3 V when
microphone enabled; floating when microphone muted.
Zin = 2.2 k.
AIU mk. 2 1, 3
• Sensitivity at default “normal” setting = 150 mVpp for max.
modulation.
• Sensitivity at default “high” setting = 15 mVpp for max.
modulation.
• DC bias via internal 4.4 k pull-up to 3 V. Zin = 1 k.
If microphone resistance < 100 , “high” sensitivity is selected.
Sensitivity = 15 mVpp for max. modulation.
8 MIC_GND - Microphone return -
9 EAR_SIG O Earpiece output 32 ohms, power capability = approx 100 mW max. (See note
7 below)
10 EAR_GND - Earpiece return -
1 3 5 7 9
2 4 6 8 10
Connector viewed from the rear of the Console or AIU.
SB-P-06-4066 Sepura
Commercial in Confidence Page 19 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Notes:
1) Transceiver gain set to reference level, see section 6.5
2) The AIU Mk1 has been superseded by the AIU Mk2.
3) There are two audio gain settings: “normal” intended for handheld microphones and “high”
intended for remote microphones. If the audio accessory identification resistor (see section
6.3) is 10 k, or greater, the “normal” gain setting is selected. “High” gain (20 dB higher than
“normal” gain) is always selected when the audio accessory identification resistor is 0 , i.e.,
ACC_ID is connected to ground.
AIU Mk2 only If the microphone resistance is < 100 , the gain will be “high”. This
functionality is intended to allow dynamic microphones to operate with this interface — as
used in certain motorcycle helmet installations.
Accessory ID
resistor Microphone
resistance Gain
setting
10 k > 1 k, e.g., electret “Normal”
10 k < 100 , e.g., moving
coil (AIU Mk2)
“High”
0 any value “High”
4) The earpiece amplifier does not have any output current limiting resistors fitted and is
designed to drive loads with a minimum impedance of 8 loads from a 5 V supply
5) The transceiver mutes the microphone by turning off the electret microphone DC supply on
pin 7 of the AAI. If the audio source is not an electret microphone, then the accessory must
implement its own mute by detecting the loss of the DC voltage from this pin.
6) When Normal gain is selected, the presence of a microphone load with a resistance of less
than 100 Ohms will automatically select a higher gain signal path. This functionality is
intended to allow dynamic microphones to operate with this interface - as used in certain
motorcycle helmet installations. The transceiver is unaware of any gain change.
7) These signals and pin out are not compatible with SRM1000 accessories.
6.3 Audio Accessory Identity Table
The transceiver identifies audio accessories attached to an AAI through the resistance presented
between pin 1 and pin 2 of each AAI.
Audio Accessory Type Associated identifying
resistor value, ohms
(±2%)
Nominal voltage
on ACC_ID pin, V Nominal ADC
value
no device attached ∞ 5 255
reserved 220k 4.1 210
local microphone, PTT & hook, (e.g. fist microphone) 100k 3.4 173
local microphone, PTT, earpiece & hook (e.g.
handset);
47k 2.5 128
local microphone & PTT without hook (e.g. desk
microphone)
22k 1.6 82
local microphone, PTT & earpiece without hook (e.g.
headset)
10k 0.88 45
remote microphone & switches without hook; 0 0 0
SB-P-06-4066 Sepura
Commercial in Confidence Page 20 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
6.4 Accessory Keys Table
The transceiver identifies which accessory key is pressed through the resistance presented between
pin 4 and pin 2 of each AAI.
Device state Key press Nominal voltage on ACC_KEYS pin, V Nominal ADC value
not attached N/A 5.00 255
attached None 4.51 230
attached 0 3.94 201
attached 1 3.35 171
attached 2 2.70 139
attached 3 2.00 102
attached 4 1.46 74
attached 5 0.85 44
The accessory keys use a circuit structure like that given below. Resistor values and associated
logical key numbers (which map to functions specified by the Radio Manager) are as follows:
6.5 Audio gain
Different microphones require different gains settings, e.g., a fist microphone will usually require a
lower gain setting than a remote microphone.
The audio gains of different microphone categories, e.g., fist microphone and headset, can be
adjusted over a 45 dB range via Radio Manager. This gain variation takes place in the transceiver
and is in addition to the console and AIU sensitivity settings, “normal” and “high”, described in
section 6.2. The sensitivities for the console and AIU stated in section 6.2 are achieved when the
transceiver audio gain - programmable via Radio Manager - is set to 24 dB.
Radio manager includes default transceiver gain settings for various accessories, but if these are
incorrect for a particular customer’s needs, the gain can be programmed to any setting within the
45 dB range.
Accessory Radio Manager default setting
Covert microphone
Desk Microphone
Fist microphone
Handset
Headset
30 dB
Remote microphone 27 dB
68R 68 82 180 270 560R
5 3
4 2 1 0
ACC_KEYS
GND
Key number =
1800R
SB-P-06-4066 Sepura
Commercial in Confidence Page 21 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
6.6 AIU MK 1 Jack Connectors
Jack sockets provide an alternative method for connecting audio accessories to the AIU Mk1.
The jack sockets are an alternative format for the AAI2 connector.
One Jack socket designated ‘MIC’ supports:
• Microphone audio.
• Accessory ID.
The other Jack socket designated ‘PTT’ supports:
• PTT.
• Accessory key 5 only.
It should be noted that in the AIU Mk1 the Jack sockets share the AAI2 audio connections;
hence accessories must not be plugged in to the Jack sockets and the AAI2 connector at
the same time.
6.6.1 Connector Details
Stereo 3.5mm Jack socket. Mechanical latching is provided by securing the jack plug body to
features in the AIU mounting plate
6.6.2 Jack Signals
Jack Pin number Identification (for reference):
‘MIC’ Jack Socket:
Pin Signal Name
1 GND
2 ACC_ID (AAI-2 Channel)
3 MIC_SIG (AAI-2 Channel)
‘PTT Jack Socket:
Pin Signal Name
1 GND
2 Jack key input 10 k pull-up to 5 V in the AIU.
Connecting this pin to GND via a 22 k (or less) resistance will cause the console
software to see ‘Accessory Key 5’ pressed on AAI2.
3 nPTT (AAI-2 Channel)
Note if an SRH side jack microphone is connected in the via the microphone jack socket, the
ACC_ID signal will be shorted to GND (pins 1 and 2 shorted) by the mono jack plug, so the remote
microphone accessory will be detected correctly
1 2 3
SB-P-06-4066 Sepura
Commercial in Confidence Page 22 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
6.7 AIU MK 2 Jack Connectors
On the Mk 2 version of the Accessory Interface Unit (AIU) some of the pin functionality is re-allocated
on the AAI2 connector and the connector is renamed “Remote Control Interface” (RCI) (see section
7).
The AIU Mk 2 has a VOGAD circuit in line with both of the microphone paths. The gain on the AAI1
and AAI2 mic paths can be locally varied according to the type of microphone connected and a
microphone detect function is provided on AAI1.
6.8 AAI2 – via jack connector
For AIU Mk 2 the AAI2 audio input functionality is only available via the jack connector. The
performance and expected signal properties are slightly different from those of AIU Mk 1.
Jack Pin
Number Signal Name Input/
Output Description Performance
3
MIC_SIG I Microphone input Normal gain: 150mVrms nominal
High gain: 15mVrms nominal
Low gain: 1.2 Vrms nominal.
2.2 k internal pull up to 8V.
The higher bias voltage and the addition of microphone load detection, allow this interface to operate
with active remote microphones e.g.
Accessory ID resistor, ACC_ID2 Microphone resistance or current Gain setting
10 k > 20 k (< 0.4 mA), e.g., passive electret “Normal”
10 k < 100 , e.g., moving coil “Low”
10 k 1.5 mA, e.g., active electret “Low”
0 > 20 k (< 0.4 mA), e.g., passive electret “High”
SB-P-06-4066 Sepura
Commercial in Confidence Page 23 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
7 RCI CONNECTIONS
The RCI is present on the AIU Mk2 only. It allows an RCU to control the features of the transceiver
without using the radio console
7.1 Connector Details
Header: Sepura 3513 999 99316
Mating plug: Hirose number DF11-10DS-2C
7.2 Signal details
Pin
Number Signal Name Input/
Output Description Performance
1 8V5 O Supply output Supply output to power remote control
devices.
8.5v Current limited to ~500mA
2 GND - Main Ground return -
3 DATA I/O 1-wire data 3v Logic Levels, Sepura proprietary
protocol (see note 1 below)
4 ACC_KEYS I Accessory Keys 5V ADC input with internal 330R pull-up.
See section 6.4
5 nON_HOOK I Hook Signal 5V CMOS input, active low.
Internal 47k pull up to 5V
6 nPTT I PTT input 5V CMOS input, active low.
Internal 47k pull up to 5V
7 MIC_OUT_SIG O Microphone output Buffered version (0dB gain) of the Jack
Microphone input signal. AC coupled with
internal 6k8 load resistor to
MIC_OUT_GND (see note 3)
8 MIC_OUT_GND - Microphone output return
9 EAR_SIG O Earpiece output 32 ohms, power capability = 100 mW max
(see note 2 and 3 below).
10 EAR_GND - Earpiece return -
Notes:
1) One wire data for support of an RCU such as the Sepura 300-00164
2) The earpiece amplifier does not have any output current limiting resistors fitted and is
designed to drive a minimum of 8ohm loads from a 5V supply.
3) The MIC_OUT and EAR signals are no longer supported within the software for this
interface.
1 3 5 7 9
2 4 6 8 10
View looking at connector mounted on the AIU Mk 2 PCB.
SB-P-06-4066 Sepura
Commercial in Confidence Page 24 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
8 DESK MOUNT UNIT CONNECTORS
The transceiver may be mounted within the case and the console mounted on top of a Desk Mount
Unit to facilitate operation outside of a vehicle.
The Audio Accessory Interface signals from the AAI1 connector on the back of the Console are
cabled to a 9-way ‘D’ socket and a ¼” jack socket to allow for connection of a range of desk
accessories.
8.1 Desk Microphone/Headset Connector
8.1.1 Connector Details
9-way, standard density D-socket, with 2 off 4-40UNC hex pillars.
8.1.2 Signals
The following signals connect back to the AAI1 connector in the back of the Desk Mount Unit
console. See section 6.2 for Signal details.
Pin Signal Name Comments
1 ACC_ID See section 6.3
2 GND See section 6.2
3 ACC_KEYS See section 6.4
4 EAR_SIG See section 6.2
5 EAR_GND See section 6.2
6 nON_HOOK See section 6.2
7 MIC_SIG See section 6.2
8 MIC_GND See section 6.2
9 nPTT See section 6.2
Shell GND
8.2 Foot Switch Connector
8.2.1 Connector Details
Panel mounted, ¼” 3-pole jack socket with a mechanical latching mechanism. (e.g. Neutrik
NJ3FP6C).
8.2.2 Signals
Pin Signal Name Comment
Sleeve GND GND
Ring GND GND
Tip nPTT See section 6.2
8.3 Loudspeaker Connector
The Desk Mount Unit has an internal speaker. Connection to the speaker is made on the rear of the
unit where there is a 2-pin plug which will accept the speaker connector form the Desk Mount Unit
power supply lead.
SB-P-06-4066 Sepura
Commercial in Confidence Page 25 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
9 DATA CONNECTOR INTERFACE
A single Data Interface Connector is located on:
• The lower surface of the Console.
• On the outside of the AIU.
9.1 Connector details
Connector Type: 15 way high density female D type. Type JST KSEY-15S-1A3F19-13
9.2 Signal details
Pin Signal Name
Signal Function Signal Function &
Signal Characteristics
1 AODO1/MISO Console Programming &
Programmable I/O -Output
Open drain, active low.
500mA max sink current
15.8V max external voltage
Protected against inductive loads.
An external 10 k pull-up resistor to 5V is required for
console programming. See {1} for details
VOLmax = 300mV
2 MOSI Console Programming - Input 5V logic. See {1} for details.
3 nReset Console Programming - Input 5V logic. See {1} for details.
4 SCK Console Programming - Input 5V logic. See {1} for details.
5 5V Console Programming - Output 5V nominal, 10mA max.
Not protected against misuse.
6 AGPI_11 Programmable I/O - Input VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
7 AGPI_21 Programmable I/O - Input VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
8 AGPI_31 Programmable I/O - Input VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
9 RS232_DCD RS232 Data See section 4.4
10 RS232_RXD RS232 Data See section 4.4
11 RS232_TXD RS232 Data See section 4.4
12 RS232_RTS RS232 Data See section 4.4
13 RS232_CTS RS232 Data See section 4.4
14 RS232_DTR RS232 Data See section 4.4
15 GND - See section 4.4
Metal shell Screen - See section 4.4
For notes see over leaf
11 12 13 14 15
1 2 3 4 5
6 7 8 9 10
SB-P-06-4066 Sepura
Commercial in Confidence Page 26 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Notes
1) There is a pull-down resistance on each digital input. The resistance to ground, will
vary in the range 10k to 27k ohms depending on the applied input voltage, this
because there is a resistor divider network feeding a resistor junction
2) Only the AIU supports digital inputs or outputs, the console does not.
SB-P-06-4066 Sepura
Commercial in Confidence Page 27 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
10 ANTENNA’S
10.1 Connector details
Type: BNC socket.
10.2 Signal details
Pin Signal Name
Signal Function Signal Function &
Signal Characteristics
Centre ANTENNA Main TETRA RF input/output 10W max average power (20W max. peak) during
transmission
DC grounded internally using 100K resistor
Outer GND Ground return Ground
SB-P-06-4066 Sepura
Commercial in Confidence Page 28 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
11 GPS ANTENNA
11.1 Connector details
Type: SMC female (on the radio).
11.2 Signal details
Notes:
1) The GPS circuitry within the SRM/G will operate with a passive antenna. However
due to cable loss an active antenna with LNA gain between 20dB and 30dB is
advised to counter the cable loss. Sepura supplied GPS antennas have an LNA gain
of 26dB to counter a 5dB loss in 5m coax cable.
2) Active antenna’s draw 5V dc at up to 40mA.
Pin Signal Name
Signal Function Signal Function &
Signal Characteristics
Centre GPS_ANT GPS RF input and active
antenna DC feed
Vnom.5V
I max.40mA
Internally protected against external short circuits to
ground.
RF input from GPS antenna = 1575.42 MHz (L1 Band) at a
level between –135 dBm and –152 dBm into a 50
impedance.
LNA gain see note 1 below
Outer GND Ground return Ground
SB-P-06-4066 Sepura
Commercial in Confidence Page 29 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
12 CONSOLE AND AIU CABLE SPECIFCATION
In order to connect audio accessories to the Console or AIU, the cable form and its retaining
grommet should adhere to the following specification:
12.1 Cableform Mechanical Details
• Overall dimensions
• Plug Termination
See notes overleaf
Stripped section: 76 +/- 2 mm
116+/-2mm
Plug
grommet:
see section
12.2
Identifier:
Ø = 5.5mm max
x 25mm typ
Sleeve over jacket
breakout:
Ø = 6mm max
x 10mm typ
See note
3
Hirose Plug
20 mm min
Sleeve over any mic
coax break-out and
other wires: 10mm
typ.
Mic coax
break-out
See note 2
5 mm typ
Less than 3000mm (see note 1)
ØOD = 5.2 +/- 1mm
116 ±
2mm
Accessory
termination
Plug
termination
As required for
accessory termination
SB-P-06-4066 Sepura
Commercial in Confidence Page 30 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
Notes:
1) The complete overall length of cable for any accessory including any extension leads
must not exceed 3000mm.
Longer cable lengths will require Sepura to obtain further approvals before the accessory
may be used, the costs re-approval will be borne by the accessory designer/manufacturer.
2) In order for the accessory to achieve the required conformity, it is recommended that
the cable be overall screened and Mic signals to be additionally screened.
3) To avoid shorting any exposed length of overall drain and microphone screen must
be sleeved with a tight fitting heat shrink to achieve a shrunk-down diameter of
approximately 1mm to fit into the insulation crimp of the Hirose pins.
12.2 Cable form Grommet
Tolerance: linear dimensions ± 0.1mm, angles ± 1º
Projection: 3rd angle
Fixing method: moulded onto cable.
Material: polyurethane type 58300, shore hardness 80A, colour black.
Pull force: Grommets to withstand a minimum pull force of 100N.
Tooling: Sepura Development to approve gate position prior to tool manufacture.
Surface finish: polished
SB-P-06-4066 Sepura
Commercial in Confidence Page 31 of 31
Mobile & Gateway
Interface Specification
17th Feb 2009 Issue 6
© Sepura plc 2009
13 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 plc, 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 plc’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 plc.
CONTACT DETAILS
Sepura plc
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