Sepura plc STP8040 TETRA Portable Terminal User Manual 3
Sepura plc TETRA Portable Terminal 3
Contents
User Manual 3
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| Document Description | User Manual 3 |
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| Date Submitted | 2010-04-12 00:00:00 |
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sepura
Mobile & Gateway Interface Specification
SB-P-06-4066
PRODUCT BULLETIN
COMMERCIAL IN CONFIDENCE
© SEPURA PLC 2009
Sepura
SB-P-06-4066
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
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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
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© Sepura plc 2009
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SB-P-06-4066
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.
Mobile & Gateway
Interface Specification
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ISSUE HISTORY
Version
Version 1
Version 2
Date
1st June 2006
24th July 2006
Version 3
22nd Sept 2006
Version 4
19th Jan 2007
Version 5
17th April 2007
Version 6
17th Feb 2009
Mobile & Gateway
Interface Specification
Change
Supersedes SB-P-05-4042
Added declaration of conformity statement.
Added abbreviations table.
Clarified difference between Mk1 and Mk2 AIU’s.
Added cable form details.
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
3679 parameter details added
SRM/G2 and 3 digital I/O capability clarification.
Added reverse battery polarity comment and note re digital
input resistance.
Corrected block diagram GPS connector.
Added GPS LNA gain requirement
Incorporates V9 changes (AIS Issue 7 and 8 of the
development document)
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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
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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
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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.
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2.5 Example interconnect block diagram
The diagram shows just one of many possible solutions and highlights the flexibility of the
Sepura product.
Audio Accessory 1
Audio Accessory Interface (10 way Hirose)
•
Microphone input
•
Earpiece output
•
Hooking input
•
PTT input
•
Accessory soft key input
•
Accessory identifier input
•
Ground
Transceiver
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
Console to Transceiver Cable
15 way HD type to 16 way Hirose
Audio Accessory 2
Console
or
AIU Mk1
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)
Data Lead
15 Way HD Type to
9 Way D Type
MDT or
Programmer
GPS Connector (option)
SMC
Power Supply Interface
(15 way D Type)
•
Supply input and ground
reference
•
Ignition sense input
•
Loudspeaker Output
•
4 Programmable I/O
Battery/
Ignition detect
Digital I/O
Loudspeaker
Antenna Connector
BNC
Mobile & Gateway
Interface Specification
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SB-P-06-4066
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
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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.
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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
11
12
13
14
15
10
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
13
15
Connector viewed from the rear of the Console.
Mobile & Gateway
Interface Specification
10
12
14
16
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4.4 Signal details
Transceiver
Pin No.
(15 way HD
D-type)
Console Pin
No.
(16 way
header)
14
CONSOLE_TXD
16
CONSOLE_RXD
PWR_ON
15
POWER_OUT
Console
interface 1
LS_LINE_1
Console
interface 2
LS_LINE_1
Signal Name
Error!
Reference source not found.
Signal Direction
Signal Function
Input to control
subsystem
Output from control
subsystem
Output from console
subsystem
Control data from the
console.
Control data to the
console.
Switch signal to turn
transceiver on .
Output from PSU
subsystem
Power supply to console
Output from audio
subsystem
Audio line output to
console.
Output from audio
subsystem
Audio line output to
console.
Line output from audio
subsystem.
LINE AUDIO OUT
See note 3 below
Output from audio
subsystem
Single function: input to
audio subsystem.
Ground return for audio
line output.
Audio line input signal from Maximum operating level (≅ FSD
microphones connected to on speech ADC) 0.65 V pk sine,
console.
AC coupled, into 600 Ω load
impedance.
Reserved input function
Reserved input function
LS_LINE_2
Console
interface 1
MIC_LINE_SIG
Console
interface 2
MIC_LINE_SIG
Reserved input function
Input to audio
subsystem
Microphone input.
Line input to audio
subsystem
LINE AUDIO IN
See note 3 below
Console
interface 1
Console
interface 2.
MIC_LINE_GND
Input to audio
subsystem.
Ground return for
microphone input.
MIC_LINE_GND
Input to audio
subsystem.
Ground return for
microphone input.
RS232_DCD
10
RS232_RXD
11
12
RS232_TXD
Reserved function
Output from control
subsystem
Output from control
subsystem
Input to control
subsystem
Reserved function
12
11
RS232_RTS
Input to control
subsystem
Hardware flow control
Mobile & Gateway
Interface Specification
Signal Characteristics
RS232 levels
RS232 levels
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
13V nominal supply, enabled
internally to the transceiver.
Includes over current/temperature
protection.
Rated for 280 mA nominal load
400 mA max.
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 Ω load.
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 Ω load.
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c.
coupled,
into 600 Ω load.
Ground to audio star point
Audio in: maximum operating
level (≅ FSD on speech ADC)
0.65 Vpk sine, AC coupled, into
600 Ω load impedance.
Audio in: maximum operating
level (≅ FSD on speech ADC)
0.65 Vpk sine, AC coupled, into
600 Ω load impedance.
Main ground to audio star point
via 100 Ω resistor.
Main ground via 100 Ω resistor.
Input voltage must be < 0.3 V (to
ensure input functions as
microphone input).
Do NOT tie to ground
RS232 levels
RS232 levels
RS232 levels
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RS232 levels
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13
10
RS232_CTS
14
RS232_DTR
15
13
GND
Output from control
subsystem
Input to control
subsystem
metal shell
Screen
Hardware flow control
RS232 levels
Data terminal ready
RS232 levels
Power Ground and return
for digital paths.
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
Audio
OUT
pair
Line
Audio
IN
pair
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
interface 2
Console
interface 2
Console
interface 2
Console Pin
No.
(16 way
header)
LS_LINE_1
Signal Name
Error!
Reference source not found.
Signal Direction
Signal Function
Signal Characteristics
Maximum output ( ≅peak DAC
output) 1.25 Vpk sine, a.c. coupled,
into 600 Ω load.
Ground to audio star point
Line output from audio
subsystem.
LINE AUDIO OUT
See note 3 above
LS_LINE_2
Output from audio
subsystem
Ground return for
audio line output.
MIC_LINE_SIG
Line input to audio
subsystem
LINE AUDIO IN
See note 3 above
Console
interface 2.
MIC_LINE_GND
Input to audio
subsystem.
Ground return for
microphone input.
metal shell
Screen
Over-all cable screen
Audio in: maximum operating level
(≅ FSD on speech ADC) 0.65 Vpk
sine, AC coupled, into 600 Ω load
impedance.
Main ground via 100 Ω resistor.
Input voltage < 0.3 V (to ensure
input functions as microphone
input).
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).
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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
Line -out Audio,
No Mic, No
Sidetone
PTT
Light-Bar
PA Loudspeaker
Line -out Audio,
with Mic
DAT
recorder
Handsfree mic
PEI data
A console connected
to Console Interface
1 can support the full
range of accessories
– even with Line
Audio enable
Call Detail
Recorder
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
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
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5 POWER SUPPLY INTERFACE
There is a single Power Supply Interface located on the rear panel of the Transceiver.
5.1 Connector details
15 way male D type
Connector viewed from the rear of Transceiver.
5.2 Signal details
Pin
Number
1,2,9,10
4,5,11,12
SRM Signal
Name
GND_CAR
12V_CAR
Input/
Output
SRM2
Description
Supply input
Supply input
IGN_SENSE
LS_B
GPI_1
On-Off
Loudspeaker
Programmable
I/O input 1
GPI_3
Programmable
I/O input 3
13
LS_A
Loudspeaker
Performance
0V
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)
See notes overleaf.
See signal LS_A
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
(see also note 10)
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
(see also note 10)
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
Mobile & Gateway
Interface Specification
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
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15
GPI_2
Screen
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
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
Mobile & Gateway
Interface Specification
Commercial in Confidence
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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
Connector viewed from the rear of the Console or AIU.
10
6.2 Signal details
Pin
Number
Signal Name
ACC_ID
GND
SCN
ACC_KEYS
nON_HOOK
Input/
Output
Description
nPTT
PTT input
MIC_SIG
Microphone input
Accessory Identity
Main Ground return
Screen Connection
Accessory Keys
Hook Signal
Comment
5V ADC input with internal 47k pull-up. See section 6.3
5V ADC input with internal 330R pull-up. See section 6.4
5V CMOS input, active low.
Internal 47k pull up to 5V
5V CMOS input, active low.
Internal 47k pull up to 5V
1, 2, 3
Console & AIU mk. 1
• 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 kΩ pull-up to 3 V when
microphone enabled; floating when microphone muted.
Zin = 2.2 kΩ.
1, 3
AIU mk. 2
• 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 kΩ pull-up to 3 V. Zin = 1 kΩ.
MIC_GND
Microphone return
EAR_SIG
Earpiece output
10
EAR_GND
Earpiece return
Mobile & Gateway
Interface Specification
If microphone resistance < 100 Ω, “high” sensitivity is selected.
Sensitivity = 15 mVpp for max. modulation.
32 ohms, power capability = approx 100 mW max. (See note
7 below)
Commercial in Confidence
Page 18 of 31
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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 kΩ, 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 Ω, i.e.,
ACC_ID is connected to ground.
AIU Mk2 only If the microphone resistance is < 100 Ω, 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
≥ 10 kΩ
≥ 10 kΩ
Microphone
resistance
> 1 kΩ, e.g., electret
< 100 Ω, e.g., moving
coil (AIU Mk2)
any value
0Ω
Gain
setting
“Normal”
“High”
“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 Ω 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
Nominal voltage
on ACC_ID pin, V
Nominal ADC
value
∞
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 &
microphone)
PTT without hook (e.g. desk
22k
1.6
82
local microphone, PTT & earpiece without hook (e.g.
headset)
10k
0.88
45
(±2%)
no device attached
remote microphone & switches without hook;
Mobile & Gateway
Interface Specification
Commercial in Confidence
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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
3.94
201
attached
3.35
171
attached
2.70
139
attached
2.00
102
attached
1.46
74
attached
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:
68
68R
82
180
560R
270
1800R
ACC_KEYS
GND
Key number =
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
30 dB
Fist microphone
Handset
Headset
Remote microphone
Mobile & Gateway
Interface Specification
27 dB
Commercial in Confidence
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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
GND
ACC_ID (AAI-2 Channel)
MIC_SIG (AAI-2 Channel)
‘PTT Jack Socket:
Pin
Signal Name
GND
Jack key input
nPTT (AAI-2 Channel)
10 kΩ pull-up to 5 V in the AIU.
Connecting this pin to GND via a 22 kΩ (or less) resistance will cause the console
software to see ‘Accessory Key 5’ pressed on AAI2.
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
Mobile & Gateway
Interface Specification
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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
MIC_SIG
Input/
Output
Description
Microphone input
Performance
Normal gain: 150mVrms nominal
High gain: 15mVrms nominal
Low gain: 1.2 Vrms nominal.
2.2 kΩ 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
≥ 10 kΩ
≥ 10 kΩ
≥ 10 kΩ
0Ω
Mobile & Gateway
Interface Specification
Microphone resistance or current
> 20 kΩ (< 0.4 mA), e.g., passive electret
< 100 Ω, e.g., moving coil
≥ 1.5 mA, e.g., active electret
> 20 kΩ (< 0.4 mA), e.g., passive electret
Commercial in Confidence
Gain setting
“Normal”
“Low”
“Low”
“High”
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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
10
View looking at connector mounted on the AIU Mk 2 PCB.
7.2 Signal details
Pin
Number
Signal Name
8V5
Input/
Output
Description
GND
DATA
I/O
ACC_KEYS
Accessory Keys
nON_HOOK
Hook Signal
nPTT
PTT input
MIC_OUT_SIG
Microphone output
MIC_OUT_GND
EAR_SIG
Microphone output return
Earpiece output
10
EAR_GND
Earpiece return
Supply output
Main Ground return
1-wire data
Performance
Supply output to power remote control
devices.
8.5v Current limited to ~500mA
3v Logic Levels, Sepura proprietary
protocol (see note 1 below)
5V ADC input with internal 330R pull-up.
See section 6.4
5V CMOS input, active low.
Internal 47k pull up to 5V
5V CMOS input, active low.
Internal 47k pull up to 5V
Buffered version (0dB gain) of the Jack
Microphone input signal. AC coupled with
internal 6k8 load resistor to
MIC_OUT_GND (see note 3)
32 ohms, power capability = 100 mW max
(see note 2 and 3 below).
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.
Mobile & Gateway
Interface Specification
Commercial in Confidence
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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
Shell
Signal Name
ACC_ID
GND
ACC_KEYS
EAR_SIG
EAR_GND
nON_HOOK
MIC_SIG
MIC_GND
nPTT
GND
Comments
See section 6.3
See section 6.2
See section 6.4
See section 6.2
See section 6.2
See section 6.2
See section 6.2
See section 6.2
See section 6.2
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
Sleeve
Ring
Tip
Signal Name
GND
GND
nPTT
Comment
GND
GND
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.
Mobile & Gateway
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Commercial in Confidence
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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
11
12
13
14
15
10
9.2 Signal details
Pin
Signal Name
Signal Function
AODO /MISO
MOSI
nReset
SCK
5V
AGPI_1
Programmable I/O - Input
AGPI_2
Programmable I/O - Input
AGPI_3
Programmable I/O - Input
10
11
12
13
14
15
Metal shell
Console Programming &
Programmable I/O -Output
Console Programming - Input
Console Programming - Input
Console Programming - Input
Console Programming - Output
RS232_DCD
RS232_RXD
RS232_TXD
RS232_RTS
RS232_CTS
RS232_DTR
GND
Screen
RS232 Data
RS232 Data
RS232 Data
RS232 Data
RS232 Data
RS232 Data
Signal Function &
Signal Characteristics
Open drain, active low.
500mA max sink current
15.8V max external voltage
Protected against inductive loads.
An external 10 kΩ pull-up resistor to 5V is required for
console programming. See {1} for details
VOLmax = 300mV
5V logic. See {1} for details.
5V logic. See {1} for details.
5V logic. See {1} for details.
5V nominal, 10mA max.
Not protected against misuse.
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
VIH min = 2.0V
VIL max = 0.8V
Protected against accidental application of vehicle supply
voltage
Assertion time: >100ms
See section 4.4
See section 4.4
See section 4.4
See section 4.4
See section 4.4
See section 4.4
See section 4.4
See section 4.4
For notes see over leaf
Mobile & Gateway
Interface Specification
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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.
Mobile & Gateway
Interface Specification
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10 ANTENNA’S
10.1 Connector details
Type: BNC socket.
10.2 Signal details
Pin
Signal Name
Centre
ANTENNA
Outer
GND
Mobile & Gateway
Interface Specification
Signal Function
Main TETRA RF input/output
Ground return
Commercial in Confidence
Signal Function &
Signal Characteristics
10W max average power (20W max. peak) during
transmission
DC grounded internally using 100K resistor
Ground
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11 GPS ANTENNA
11.1 Connector details
Type: SMC female (on the radio).
11.2 Signal details
Pin
Centre
Signal Name
GPS_ANT
Signal Function
Signal Function &
Signal Characteristics
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 Ω
impedance.
LNA gain see note 1 below
Outer
GND
Ground return
Ground
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.
Mobile & Gateway
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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
Accessory
termination
116 ±
2mm
Less than 3000mm (see note 1)
ØOD = 5.2 +/- 1mm
As required for
accessory termination
•
Plug Termination
116+/-2mm
Stripped section: 76 +/- 2 mm
20 mm min
5 mm typ
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
Mic coax
break-out
See note 2
Sleeve over any mic
coax break-out and
other wires: 10mm
typ.
Hirose Plug
See notes overleaf
Mobile & Gateway
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SB-P-06-4066
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:
Projection:
linear dimensions ± 0.1mm, angles ± 1º
3rd angle
Fixing method: moulded onto cable.
Material:
Pull force:
Tooling:
polyurethane type 58300, shore hardness 80A, colour black.
Grommets to withstand a minimum pull force of 100N.
Sepura Development to approve gate position prior to tool manufacture.
Surface finish: polished
Mobile & Gateway
Interface Specification
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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
Mobile & Gateway
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