Gemalto CINTERION DSB-Mini User manual

c
DSB-Mini User Guide
Version: 02
DocId: dsb-mini_ug_v02
User Guide

GENERAL NOTE
THE USE OF THE PRODUCT INCLUDING THE SOFTWARE AND DOCUMENTATION (THE "PROD-
UCT") IS SUBJECT TO THE RELEASE NOTE PROVIDED TOGETHER WITH PRODUCT. IN ANY
EVENT THE PROVISIONS OF THE RELEASE NOTE SHALL PREVAIL. THIS DOCUMENT CON-
TAINS INFORMATION ON CINTERION PRODUCTS. THE SPECIFICATIONS IN THIS DOCUMENT
ARE SUBJECT TO CHANGE AT CINTERION'S DISCRETION. CINTERION WIRELESS MODULES
GMBH GRANTS A NON-EXCLUSIVE RIGHT TO USE THE PRODUCT. THE RECIPIENT SHALL NOT
TRANSFER, COPY, MODIFY, TRANSLATE, REVERSE ENGINEER, CREATE DERIVATIVE WORKS;
DISASSEMBLE OR DECOMPILE THE PRODUCT OR OTHERWISE USE THE PRODUCT EXCEPT
AS SPECIFICALLY AUTHORIZED. THE PRODUCT AND THIS DOCUMENT ARE PROVIDED ON AN
"AS IS" BASIS ONLY AND MAY CONTAIN DEFICIENCIES OR INADEQUACIES. TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE LAW, CINTERION WIRELESS MODULES GMBH DIS-
CLAIMS ALL WARRANTIES AND LIABILITIES. THE RECIPIENT UNDERTAKES FOR AN UNLIMITED
PERIOD OF TIME TO OBSERVE SECRECY REGARDING ANY INFORMATION AND DATA PRO-
VIDED TO HIM IN THE CONTEXT OF THE DELIVERY OF THE PRODUCT. THIS GENERAL NOTE
SHALL BE GOVERNED AND CONSTRUED ACCORDING TO GERMAN LAW.
Copyright
Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its con-
tents and communication thereof to others without express authorization are prohibited. Offenders will
be held liable for payment of damages. All rights created by patent grant or registration of a utility model
or design patent are reserved.
Copyright © 2012, Cinterion Wireless Modules GmbH
Trademark Notice
Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries. All other registered trademarks or trademarks mentioned in this
document are property of their respective owners.
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DSB-Mini User Guide c
User Guide: DSB-Mini User Guide
Version: 02
Date: 2012-10-09
DocId: dsb-mini_ug_v02
Status Confidential / Released

DSB-Mini User Guide
Contents
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Contents
0 Document History...................................................................................................... 6
1 Introduction.................................................................................................................7
1.1 Regulatory Compliance Information................................................................... 7
1.2 Supported Products ........................................................................................... 7
1.3 Related Documents ........................................................................................... 7
1.4 Scope of delivery ............................................................................................... 8
2 Product Concept.........................................................................................................9
2.1 Key Features at a Glance ................................................................................ 10
2.2 System Overview ............................................................................................. 11
3 Interface Description ................................................................................................12
3.1 Power Supply................................................................................................... 12
3.1.1 Power Path Switch.............................................................................. 12
3.2 Serial Communication Interfaces ..................................................................... 13
3.3 Analog Audio Interface..................................................................................... 14
3.4 SIM Interface.................................................................................................... 14
3.4.1 Automatic Dual SIM Operation ........................................................... 14
3.4.2 CCVCC Adjustment ............................................................................ 15
3.4.3 Component SIM Card Support............................................................ 15
3.5 Status LEDs ..................................................................................................... 15
3.6 Application Connectors .................................................................................... 16
3.6.1 2x40-Pin Connector for Starter Kits .................................................... 16
3.6.2 80-Pin Connector for DSB75 Module Adapters .................................. 21
3.6.3 10-Pin Digital Audio Connector........................................................... 22
3.6.4 10-Pin Connector for Starter Kit Signals ............................................. 22
3.7 Patch Field ....................................................................................................... 23
4 Appendix: Schematics and Placement...................................................................24

DSB-Mini User Guide
Tables
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Tables
Table 1: DSB-Mini delivery package.............................................................................. 8
Table 2: Key features at a glance ................................................................................ 10
Table 3: Automatic dual SIM operation........................................................................ 14
Table 4: CCVCC adjustment........................................................................................ 15
Table 5: Status LEDs ................................................................................................... 15
Table 6: 2x40 pin connector pin assignment................................................................ 16
Table 7: 2x40-pin connector pin description and mapping........................................... 17
Table 8: 80-pin connector pin assignment ................................................................... 21
Table 9: 10-pin digital audio connector ........................................................................ 22
Table 10: 10-pin connector for additional Starter Kit signals.......................................... 22

DSB-Mini User Guide
Figures
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Figures
Figure 1: DSB-Mini overview........................................................................................... 9
Figure 2: DSB-Mini system overview ............................................................................ 11
Figure 3: Schematics, Page 1 ....................................................................................... 24
Figure 4: Schematics, Page 2 ....................................................................................... 25
Figure 5: Schematics, Page 3 ....................................................................................... 26
Figure 6: Schematics, Page 4 ....................................................................................... 27
Figure 7: Schematics, Page 5 ....................................................................................... 28
Figure 8: Placement, Page 1 (top) ................................................................................ 29
Figure 9: Placement, Page 2 (with Starter Kit mounted)............................................... 30

DSB-Mini User Guide
0 Document History
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0 Document History
Preceding document: "DSB-Mini User Guide" Version 01
New document: "DSB-Mini User Guide" Version 02
New document: "DSB-Mini User Guide" Version 01
Chapter What is new
1.1 New section Regulatory Compliance Information.
Chapter What is new
--- Initial document setup.

DSB-Mini User Guide
1 Introduction
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1 Introduction
The DSB-Mini is a simple and easy-to-use development support board, designed to assist sys-
tem integrators in developing and evaluating products based on Cinterion Wireless Modules.
This document describes all interfaces of the DSB-Mini, provides technical specifications and
presents guidelines for connecting and operating the Cinterion modules to be evaluated.
Chapter 2 introduces the product concept, including key features and system overview, Chap-
ter 3 describes the DSB-Mini’s interfaces in some more detail including the DSB-Mini’s connec-
tor pin assignments. The Appendix finally contains schematics and placement (see Chapter 4).
1.1 Regulatory Compliance Information
The DSB-Mini is intended for use only in a laboratory test environment. All persons handling
the DSB-Mini must be properly trained in electronics and observe good engineering practice
standards.
The DSB-Mini is a test/development platform and has not been designed to be embedded into
other products (referred as "final products").
The DSB-Mini is not intended for use as reference environment for type approval.
1.2 Supported Products
The DSB-Mini provides two 40-pin connectors to mount the Cinterion Starter Kits B60 and B80
in order to evaluate the full functionality of modules that can be connected to these Starter Kits.
Also, the DSB-Mini has an 80-pin connector to mount the Cinterion Multi-Adapter R1 or various
other DSB75 product adapter together with their plugged modules. Signals and levels are in
each case switched automatically.
The diversity of the supported products implies that, due to hardware or software specific prop-
erties, major differences occur regarding the availability of interfaces and the implementation
of features. Therefore, please consult the specifications supplied with your module, especially
[1] and [2], to make sure whether or not a described interface, signal, operating mode or func-
tion offered by the DSB75 is supported.
1.3 Related Documents
[1] AT Command Set for the appropriate module
[2] Hardware Interface Description for the appropriate module
[3] DSB75 Development Support Board Rev. B1 Hardware Description
[4] Starter Kit B60 User Guide
[5] Starter Kit B80 User Guide

DSB-Mini User Guide
1.4 Scope of delivery
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1.4 Scope of delivery
The Cinterion modules, Starter Kits and DSB75 module adapter for use with the DSB-Mini are
not included in the scope of delivery.
Table 1: DSB-Mini delivery package
Quantity Description
1 DSB-Mini

DSB-Mini User Guide
2 Product Concept
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2 Product Concept
Figure 1 shows the location of the DSB-Mini’s interfaces and switches.
Figure 1: DSB-Mini overview
8-30V mains Battery power
Power supply
RS-232 Interfaces
Analog
Ignition
SIM card SIM-Eject SIM-Select
Reset
ASC0 ASC1 supply
switch
power supply
Switch
switch button
holders
Primary USB
Secondary USB
Serial I/f
80-pin connector
2x40-pin connectors
switch
for DSB75 adapter
for Starter Kits
power supply
power supply
(Starter Kit only)
Digital
audio interface audio interface
Starter Kit
signals
switch
SIM-Supply
switch
Patch field

DSB-Mini User Guide
2.1 Key Features at a Glance
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2.1 Key Features at a Glance
Table 2: Key features at a glance
Feature Implementation
Module interface 2x40-pin connector to mount Cinterion Starter Kits B60/B80.
80-pin connector to mount Multi-Adapter R1 or other DSB75
module adapter.
For module features please refer to [2].
Power supply 8-30V
2x USB 5V / 1A
Battery supply for module
Dual SIM Supported SIM cards: 3V, 1.8V
Manual or software controlled dual SIM operation
Implemented component SIM land pattern
Serial interfaces 2 serial interfaces (ASC0 - 8 wire; ASC1 - 4 wire)
USB interface USB connection to Starter Kit
Audio interface 3.5mm jack socket for standard PC headset
Signal/status indication LEDs for On/Off, Status, Rx/Tx and RING lines, GPIOs
Dimensions 140mm x 125mm (length x width)

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2.2 System Overview
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2.2 System Overview
Figure 2: DSB-Mini system overview
Starter Kit interface
2x40 pin connector
SIM
SIM Slot
(card detection)
M2M-UICC
(option)
Dual-SIM
(option)
RS232
ASC0 & ASC1
2x DSUB-9
Buttons
-Ignition
- Reset
I/O Interface
LED
- ON/OFF
- SYNC
LEDs
10x GPIO
Power supply
8..30V Coaxial DC
power connector +
supply clamp
2x USB (1A)
Vbatt Supply clamp
DSB75 Module Adapter Interface
80-pin connector
Digital audio
PCM pins on 10-pin header
Analog audio
2 jack sockets for speaker and
microphone
Additional debug pins
Separate Starter Kit pins on
10-pin header

DSB-Mini User Guide
3 Interface Description
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3 Interface Description
3.1 Power Supply
To operate the DSB-Mini (including a connected module) a constant voltage supply is required.
The following power supply sources may be employed:
• 8-30V mains adapter
Provides the main power supply for all DSB-Mini functions. An internal DC/DC switching
regulator adjusts the voltage down to 5V. Allows common 12V mains supplies and therefore
the usage in a car environment for example. A coaxial power connector allows for plugs with
common 2.1mm or 2.5mm inside parameters. A reverse polarity protection is included for
8-30V.
Note: The power supply path does not include a short circuit protection. For usage in a car
environment for example the main power supply 8-30V will have to be additionally fused by
1A to prevent overcurrent in case of shorting the 5V or module power supply.
• 5V USB power supply
The USB power source provides the main power supply for all DSB-Mini functions. A sep-
arate external mains supply is not necessarily required.
Power can be derived from the two USB interfaces (5V / 1A) - the primary USB power sup-
ply connector labelled "5V" and the secondary connector labelled "USB". Generally, it is
recommended to use both connectors for power supply - unless power consumption is quite
low because the RF interface is not being used or only at lower multislot classes with very
good reception quality.
However, the use of both USB power supply connectors is supported for the Starter Kit only.
If employing module adapters on the 80-pin connector (e.g. the Multi-Adapter R1), only the
primary USB power supply connector delivers the power (i.e., 500mA). In this case a USB
Y-cable at the primary USB connector or the mains supply 8-30V will have to be employed
in addition to the primary USB connector in order to compensate for a possible increased
current consumption during radio transmissions at higher multislot classes.
• Battery power supply
Provides for a separate power supply source for the module - such as a battery. If the bat-
tery power supply is used for the module, either the 8-30V power supply source or the 5V
USB power supply source is required to operate the remaining DSB-Mini functions. A
charging funtionality is not supported.
3.1.1 Power Path Switch
The DSB-Mini has a switch ("BATT+") to select the module’s power supply path:
• 8-30V
The DSB-Mini is supplied with 5V derived from the 8-30V mains adapter or the 5V USB
power supply (see Section 3.1). A post LDO regulates this voltage down to 3.7V to supply
the module on the Starter Kit or DSB75 adapter.
•BAT
Only if the module connected to the Starter Kit or DSB75 module adapter is supplied from
an external battery should this switch be set to "BAT".

DSB-Mini User Guide
3.2 Serial Communication Interfaces
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3.2 Serial Communication Interfaces
The DSB-Mini has two RS-232 interfaces to communicate with the module’s serial interfaces
ASC0 and ASC1. ASC0 is a full 8-wire UART interface, while ASC1 is a 4-wire UART interface.
If the DSB-Mini is employed together with an adapter like the Multi-Adapter R1 or any other
DSB75 module adapter, the RS-232 interfaces (ASC0, ASC1) on the DSB-Mini are automati-
cally enabled and can be used.
However, if the DSB-Mini is used together with a Starter Kit, the switch ("ASC0") has to be set
to select whether to use the RS-232 interface on the DSB-Mini or the USB-to-UART bridge on
the Starter Kit for ASC0 communication:
•RS232
If set to "RS232" the module communicates via the RS-232 interfaces on the DSB-Mini. The
USB-to-UART bridge on the Starter Kit is reset and releases all ASC0 serial signals.
•StarterKit
If set to "Starter Kit" the module’s ASC0 interface communicates via the USB-to-UART
bridge of the Starter Kit. In this case the RS-232 level shifter on the DSB-Mini releases all
ASC0 serial signals. For more information on the USB-to-UART bridge please refer to the
appropriate Starter Kit documentation ([4] or [5]).

DSB-Mini User Guide
3.3 Analog Audio Interface
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3.3 Analog Audio Interface
A standard PC headset can be connected via the two 3.5mm jack sockets (SPK=Speaker,
MIC=Microphone).
3.4 SIM Interface
The DSB-Mini has a dual SIM interface and provides two SIM card holders or alternatively two
land patterns for component SIMs to be soldered. The "SIM-Select" switch can be used to
specify the active SIM card. An LED will indicate this SIM card. The SIM card holder supports
SIM removal detection.
To manually switch between two inserted SIM cards during module operation please complete
the following steps:
• Press and hold the "SIM-Eject" button. This simulates the CCIN signal, indicating to the
module that the SIM card has been removed.
• Set the "SIM-Select" switch to configure the active SIM card ("1" or "2").
• Release the "SIM-Eject" button to indicate to the module to restart the SIM software stack
and to activate the selected SIM card.
Please note that a combined operation with SIM cards inserted on both the Starter Kit and the
DSB-Mini is not supported.
3.4.1 Automatic Dual SIM Operation
To automatically control dual SIM operation, it is necessary to complete the same steps as de-
scribed above for the manual switch. To do this the two internal signals SIM_SELECT ("SIM-
Select" switch) and CCEJECT ("SIM-Eject" button) will have to be connected to the GPIO1 and
GPIO2 signals by removing resistor R21 (0) and placing 0resistors for R7 and R14 (for de-
tails see Appendix: Figure 6 and Figure 9).
The following functionality then applies for GPIO1 and GPIO2:
Having assigned the internal signals to the GPIO signals it is now possible to change the active
SIM card by automatically completing the steps described above for the manual control. The
GPIO signals can be configured and controlled by means of AT commands.
Table 3: Automatic dual SIM operation
Module signal Function Modification Description
GPIO1 CCSELECT
("SIM-Select")
Place R14/0Ω
instead of R21/0Ω
Select SIM1 or SIM2
Low: SIM1
High: SIM2
GPIO2 CCEJECT
("SIM-Eject")
Place R7/0ΩEject the SIM
Low: SIM inserted (47k pull-down)
High: SIM ejected

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3.5 Status LEDs
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3.4.2 CCVCC Adjustment
By default, the "SIM-Supply" switch is set to "CCVCC" and should remain as such, meaning
that CCVCC is delivered from the module.
In some cases however, employing the dual SIM feature may require a slightly higher supply
level to compensate for possible voltage drops. This can be achieved by setting the "SIM-Sup-
ply" switch to "CCVCC+". The SIM supply voltage is then increased by 5%.
3.4.3 Component SIM Card Support
The DSB-Mini provides two land patterns for an optional use of component UICCs (SIM/USIM/
MIM). It is possible to solder UICCs for single card or dual card operation. Depending on the
manufacturer and package of the used UICC, pin 6 or pin 7 is used for the I/O line. Thus it is
necessary to place a 0Ohm resistor either for R31 or R32 for SIM 1, and a 0Ohm resistor for
either R34 or R35 for SIM 2. Please refer to the package specification of the UICC as well as
to the Appendix: Figure 6 and Figure 9.
It is also necessary to place a 47kOhm resistor as R48 for SIM 1 and a respective 47kOhm
resistor as R33 for SIM 2 to bypass the SIM card detection (see Appendix: Figure 6 and Figure
9). Component SIMs are always inserted.
3.5 Status LEDs
The DSB-Mini comprises a number of status LEDs for various module features. The LEDs are
marked on the DSB-Mini board with arrows pointing upwards (led).
Table 4: CCVCC adjustment
Switch setting CCVCC supply voltage
“CCVCC” CCVCC (from module)
“CCVCC+” CCVCC + 5%
Table 5: Status LEDs
Feature Description
On / Off LED indicates On state of module
Status LED indicates operating modes of the module
SIM 1 / 2 LED indicates active SIM card
RX / TX for ASC0 LED indicates RX/TX traffic over ASC0
RX / TX for ASC1 LED indicates RX/TX traffic over ASC1
RING LED indicates incoming calls and URCs
GPIO 1...10 LED indicates status of GPIO lines

DSB-Mini User Guide
3.6 Application Connectors
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3.6 Application Connectors
The DSB-Mini has a number of connectors for various purposes as described in the sections
below.
3.6.1 2x40-Pin Connector for Starter Kits
The 2x40-pin connector can be employed to mount any Cinterion Starter Kit with a plugged
module. All module signals are then available at the 80-pin connector (see Section 3.6.2) or the
additional 10-pin connector (see Section 3.6.4) for signal measurement or to connect further
external applications.
The below table shows the pin assigment for the 2x40 pin connector. Not all of the listed pins
will be available with every Cinterion module. Please refer to the "Hardware Interface Descrip-
tion" of your module for the supported signals.
Table 6: 2x40 pin connector pin assignment
Connector A Connector B
DAI7 140 DAI0 BATT+ 41 80 BATT+
DAI6 239 DAI1 GND 42 79 GND.DETECT
DAI5 338 DAI2 AGND 43 78 GND
DAI4 437 DAI3 USB_DN 44 77 VUSB
SPI_DI 536 SPI_CLK USB_DP 45 76 VEXT1
SPI_DO 635 SPI_CS VEXT2 46 75 3V0
I2CDAT 734 I2CCLK 5V0 47 74 VMIC
N/C 833 DCD0 EPP1 48 73 EPN1
EMERG_RST 932 CTS1 EPP2 49 72 EPN2
RXD1 10 31 CTS0 MICP1 50 71 MICN1
RXD0 11 30 RTS1 MICP2 51 70 MICN2
TXD1 12 29 DTR0 TTY_EP 52 69 TTY_MIC
TXD0 13 28 RTS0 GPIO10 53 68 GPIO1
ADC1 14 27 DSR0 GPIO9 54 67 GPIO2
ADC2 15 26 RING0 GPIO8 55 66 GPIO3
DAC 16 25 STATUS2 GPIO7 56 65 GPIO4
STATUS/SYNC 17 24 VDDLP GPIO6 57 64 GPIO5
PWR_IND 18 23 IGT CCCLK 58 63 CCRST
GND 19 22 GND CCIO 59 62 CCIN
GND 20 21 GND CCVCC 60 61 CCGND

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3.6 Application Connectors
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The following table describes the pin assignment in somewhat more detail and also maps the Starter Kit pins to the DSB75 adapter connector pins, the
DAI connector pins and the additional Starter Kit pins.
Table 7: 2x40-pin connector pin description and mapping
Interface Name Type / Comments Starter-Kit connector
(2x40 pins) DSB-75 connector (80 pins) DAI connector (10 pins) Additional connector (10 pins)
Communication
ASC0
RXD0 Module signals
Connected to USB/UART converter
(FTDI) on Starter Kit
Automatic level adjustment
VEXT1 level for Starter Kit
3V level for DSB75 adapters
11 30
TXD0 13 32
CTS0 31 52
RTS0 28 49
DTR0 29 50
DCD0 33 54
DSR0 27 48
RING0 11 47
ASC1
RXD1 Module signals
Automatic level adjustment
VEXT2 level for Starter Kit
3V level for DSB75 adapters
10 29
TXD1 12 31
CTS1 32 53
RTS1 30 51
SPI/I²C
SPI_CLK Module signals 36 - 2
SPI_DI 5 7
SPI_DO 6 - 4
SPI_CS 35 75
I²C_DAT Module signals 7 70
I²C_CLK 34 11
USB
VUSB Module signals
VUSB is used as secondary V480
power supply on Starter Kit
77 12
USB_DP 45 69
USB_DN 44 68

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3.6 Application Connectors
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Audio
Analog audio
EPP1 Module signals
TTY signals may be implemented on
Starter Kit
48 63
EPN1 73 62
MICP1 50 59
MICN1 71 58
EPP2 49 64
EPN2 72 65
MICP2 51 60
MICN2 70 61
TTY_EP 52 8
TTY_MIC 69 10
VMIC 74 66
Digital audio
DAI0 Module signals
DAI0-6 are available on DAI connec-
tor for DAI adapter, DAI7 on addi-
tional connector
40 26 3
DAI1 39 25 4
DAI2 38 24 5
DAI3 37 23 6
DAI4 4 22 7
DAI5 3 13 8
DAI6 2 15 9
DAI7 1 6
I/O
GPIO
GPIO1 Module signals
10 LEDs are driven active-high with
no current consumption
GPIO1 and GPIO2 may be used for
dual SIM operation
68 71
GPIO2 67 72
GPIO3 66 73
GPIO4 65 74
GPIO5 64 10
GPIO6 57 9
GPIO7 56 8
GPIO8 55 6
GPIO9 54 76
GPIO10 53 5
Table 7: 2x40-pin connector pin description and mapping
Interface Name Type / Comments Starter-Kit connector
(2x40 pins) DSB-75 connector (80 pins) DAI connector (10 pins) Additional connector (10 pins)

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3.6 Application Connectors
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I/O
ADCDAC
ADC1 Module signals 14 2
ADC2 15 3
DAC 16 79
SIM
CCVCC Module signals and combined Dual-
SIM signals
CCGND is connected to GND, but
can be separated by removing R56,
R76 and R77
17 60
CCCLK 16 58
CCIO 18 59
CCRST 19 63
CCIN 20 62
CCGND 21 61
Status
/PWR_IND Module signals
Active-low. Polarity is adjusted by
Starter Kit and DSB75 adapters
/IGT and /EMERG_RST are con-
nected to buttons “IGT” and “RST”
78 18
/IGT 56 23
/EMERG_RST 55 9
STATUS/SYNC Module signals
STATUS/SYNC is indicated by “Sta-
tus” LED
28 17
STATUS2 - 25 7
GND.DETECT Used to disable USB/UART con-
verter on Starter Kit
-79
X100.DET Used to detect DSB75 Adapter
placement
36 -
TP_ENV Not used 77 -
Charging
BATTEMP Not used 27 -
VCHARGE 34 -
VSENSE 67 -
CHARGEGATE 35 -
ISENSE 14 -
Table 7: 2x40-pin connector pin description and mapping
Interface Name Type / Comments Starter-Kit connector
(2x40 pins) DSB-75 connector (80 pins) DAI connector (10 pins) Additional connector (10 pins)

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3.6 Application Connectors
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Power
Voltage domain
VDDLP Module signals 24 33
VEXT1 76 46
VEXT2 46 - 5
V480 Supply voltage
Supplied from USB power supply
(5V), external power supply (8-30V)
or from Starter Kit
47 - 1 1
3V Generated from 3V when module is
on (/PWR_IND=0)
Indicated by “On/Off” LED
75 - 2 3
Supply
BATT+ Module power supply
Supplied from Battery supply (“BAT”
connector) or generated from V480
as selected by switch “BATT+”
41, 80 41-45
GND GND 19-22, 42, 78 1, 4, 37-40, 80 10
AGND =GND 43 57
N/C Reserved for future use 8 9
Table 7: 2x40-pin connector pin description and mapping
Interface Name Type / Comments Starter-Kit connector
(2x40 pins) DSB-75 connector (80 pins) DAI connector (10 pins) Additional connector (10 pins)