Diamond Systems PCI/104-Express QSeven User manual

PCI/104-Express QSeven™ BASED SINGLE
BOARD COMPUTER
PCI/104-Express SBC with AMD Fusion G-T40E
and Integrated Data Acquisition
Rev A: July 2014
Revision
Date
Comment
A
07/16/2014
Initial Release
Copyright 2014
FOR TECHNICAL SUPPORT Diamond Systems Corporation
PLEASE CONTACT: 555 Ellis Street
Mountain View, CA 94043 USA
[e-mail] Tel [phone]
Fax [phone]

Quantum SBC User Manual Rev A www.diamondsystems.com Page 2
www.diamondsystems.com
CONTENTS
1. Important Safe Handling Information .............................................................................................................4
2. Introduction.......................................................................................................................................................6
3. Functional Block Diagram ...............................................................................................................................8
4. Board Diagram ..................................................................................................................................................9
5. Connector and Jumper Lists........................................................................................................................ 11
5.1 I/O Connectors............................................................................................................................................ 11
5.2 Configuration Jumpers ............................................................................................................................... 11
6. I/O Connectors ............................................................................................................................................... 12
6.1 External Battery (J1)................................................................................................................................... 12
6.2 PCI Bus (J2) ............................................................................................................................................... 12
6.3 Input Power (J4) ......................................................................................................................................... 13
6.4 Display Port (J5)......................................................................................................................................... 13
6.5 HDMI (J6) ................................................................................................................................................... 14
6.6 VGA (J9)..................................................................................................................................................... 14
6.7 SATA (J10)................................................................................................................................................. 15
6.8 mSATA / PCIe MiniCard (J11).................................................................................................................... 15
6.9 LVDS LCD Interface (J12, J13).................................................................................................................. 16
6.10 LCD Backlight (J3, J24).............................................................................................................................. 17
6.11 Data Acquisition (J14) ................................................................................................................................ 17
6.12 Ethernet (J15)............................................................................................................................................. 18
6.13 Audio (J17) ................................................................................................................................................. 18
6.14 PCIe/104 (J20)............................................................................................................................................ 19
6.15 PS/2 Mouse and Keyboard (J21) ............................................................................................................... 20
6.16 USB Host/Client Port (J7)........................................................................................................................... 20
6.17 USB (J25, J27) ........................................................................................................................................... 21
6.18 Serial Ports (J26, J29)................................................................................................................................ 21
6.19 Utility Connector (J30)................................................................................................................................ 22
6.20 Fan Connector (J31)................................................................................................................................... 22
7. Configuration Jumpers ................................................................................................................................. 23
7.1 Battery configuration (JP1)......................................................................................................................... 24
7.2 PCI voltage configuration (JP2).................................................................................................................. 24
7.3 LCD Backlight Power (JP3)........................................................................................................................ 24
7.4 RS-232/422/485 Configuration (JP4) ......................................................................................................... 25
7.5 RS-422/485 Termination configuration for COM1/2 (JP6) ......................................................................... 25
7.6 LCD Power (JP7)........................................................................................................................................ 26
8. System Resources......................................................................................................................................... 27
9. Video Features ............................................................................................................................................... 28
9.1 VGA CRT (J9)............................................................................................................................................. 28
9.2 Display Port (J5)......................................................................................................................................... 29
9.3 HDMI (J6) ................................................................................................................................................... 29
9.4 LVDS (J12, J13) ......................................................................................................................................... 29
10. Updating the BIOS ......................................................................................................................................... 30
11. Installation and Configuration...................................................................................................................... 30
11.1 Quick Setup................................................................................................................................................ 30
11.2 Boot Device Options................................................................................................................................... 30
12. BIOS Functions.............................................................................................................................................. 31
12.1 Access BIOS Setup:................................................................................................................................... 31
12.2 Key Commands.......................................................................................................................................... 32
12.3 The Menus.................................................................................................................................................. 32
12.3.1 Main ................................................................................................................................................... 33
12.3.2 Advanced........................................................................................................................................... 34
12.3.3 Chipset............................................................................................................................................... 38
12.3.4 Boot.................................................................................................................................................... 43
12.3.5 Security.............................................................................................................................................. 44
12.3.6 Save & Exit ........................................................................................................................................ 45
13. PIC Microcontroller........................................................................................................................................ 46
13.1 Are you there.............................................................................................................................................. 47

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13.2 Configure DIO Port Command ................................................................................................................... 47
13.3 DIO Read.................................................................................................................................................... 48
13.4 DIO Output.................................................................................................................................................. 48
13.5 EEPROM Read........................................................................................................................................... 49
13.6 EEPROM WRITE........................................................................................................................................ 49
13.7 MTBF POWER CYCLE .............................................................................................................................. 50
13.8 Watchdog Timeout Set............................................................................................................................... 51
13.9 Watchdog Trigger....................................................................................................................................... 52
13.10Watchdog Read.......................................................................................................................................... 52
13.11MTBF Power Data:..................................................................................................................................... 53
13.12RTC Read................................................................................................................................................... 54
13.13RTC Write................................................................................................................................................... 55
13.14Set COM Mode........................................................................................................................................... 56
13.15Get COM Mode........................................................................................................................................... 56
13.16READ ANALOG DATA............................................................................................................................... 57
13.17BOARD VOLTAGES .................................................................................................................................. 58
13.18PWM CONTROL ........................................................................................................................................ 59
13.19READ DIO CONFIG ................................................................................................................................... 60
13.20CALENDAR WAKEUP ............................................................................................................................... 60
14. System Reset ................................................................................................................................................. 61
15. Data Acquisition Circuit................................................................................................................................ 61
15.1 Protocol selection ....................................................................................................................................... 61
15.2 Application Navigation................................................................................................................................ 62
15.3 Are You There ............................................................................................................................................ 63
15.4 Digital I/O.................................................................................................................................................... 64
15.5 EEPROM Access........................................................................................................................................ 65
15.6 Analog Data................................................................................................................................................ 66
15.7 MTBF Data ................................................................................................................................................. 67
15.8 Watchdog.................................................................................................................................................... 68
15.9 PWM........................................................................................................................................................... 69
15.10RTC/Calendar............................................................................................................................................. 70
15.11Communication Mode................................................................................................................................. 71
15.12Board Voltages........................................................................................................................................... 72
16. I/O Cables ....................................................................................................................................................... 73
17. Specifications................................................................................................................................................. 74
17.1 Processor Section (All Models) .................................................................................................................. 74
17.2 Data Acquisition Section............................................................................................................................. 75

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1. IMPORTANT SAFE HANDLING INFORMATION
WARNING!
ESD-Sensitive Electronic Equipment
Observe ESD-safe handling procedures when working with this product.
Always use this product in a properly grounded work area and wear appropriate
ESD-preventive clothing and/or accessories.
Always store this product in ESD-protective packaging when not in use.
Safe Handling Precautions
The Quantum SBC contains a high number of I/O connectors with connection to sensitive electronic components.
This creates many opportunities for accidental damage during handling, installation and connection to other
equipment. The list here describes common causes of failure found on boards returned to Diamond Systems for
repair. This information is provided as a source of advice to help you prevent damaging your Diamond Systems
(or any vendor’s) embedded computer boards.
ESD damage –This type of damage is usually almost impossible to detect, because there is no visual sign of
failure or damage. The symptom is that the board eventually simply stops working, because some component
becomes defective. Usually the failure can be identified and the chip can be replaced.
To prevent ESD damage, always follow proper ESD-prevention practices when handling computer boards.
Damage during handling or storage –On some boards we have noticed physical damage from mishandling. A
common observation is that a screwdriver slipped while installing the board, causing a gouge in the PCB surface
and cutting signal traces or damaging components.
Another common observation is damaged board corners, indicating the board was dropped. This may or may not
cause damage to the circuitry, depending on what is near the corner. Most of our boards are designed with at
least 25 mils clearance between the board edge and any component pad, and ground / power planes are at least
20 mils from the edge to avoid possible shorting from this type of damage. However these design rules are not
sufficient to prevent damage in all situations.
A third cause of failure is when a metal screwdriver tip slips, or a screw drops onto the board while it is powered
on, causing a short between a power pin and a signal pin on a component. This can cause overvoltage / power
supply problems described below. To avoid this type of failure, only perform assembly operations when the
system is powered off.
Sometimes boards are stored in racks with slots that grip the edge of the board. This is a common practice for
board manufacturers. However our boards are generally very dense, and if the board has components very close
to the board edge, they can be damaged or even knocked off the board when the board tilts back in the rack.
Diamond Systems recommends that all our boards be stored only in individual ESD-safe packaging. If multiple
boards are stored together, they should be contained in bins with dividers between boards. Do not pile boards on
top of each other or cram too many boards into a small location. This can cause damage to connector pins or
fragile components.
Power supply wired backwards –Our power supplies and boards are not designed to withstand a reverse
power supply connection. This will destroy each IC that is connected to the power supply (i.e. almost all ICs). In
this case the board will most likely will be irreparable and must be replaced. A chip destroyed by reverse power or
by excessive power will often have a visible hole on the top or show some deformation on the top surface due to
vaporization inside the package. Check twice before applying power!
Board not installed properly in PC/104 stack –A common error is to install a PC/104 board accidentally shifted
by 1 row or 1 column. If the board is installed incorrectly, it is possible for power and ground signals on the bus to
make contact with the wrong pins on the board, which can damage the board. For example, this can damage
components attached to the data bus, because it puts the 12V power supply lines directly on data bus lines.

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Overvoltage on analog input –If a voltage applied to an analog input exceeds the design specification of the
board, the input multiplexor and/or parts behind it can be damaged. Most of our boards will withstand an
erroneous connection of up to 35V on the analog inputs, even when the board is powered off, but not all boards,
and not in all conditions.
Overvoltage on analog output –If an analog output is accidentally connected to another output signal or a
power supply voltage, the output can be damaged. On most of our boards, a short circuit to ground on an analog
output will not cause trouble.
Overvoltage on digital I/O line –If a digital I/O signal is connected to a voltage above the maximum specified
voltage, the digital circuitry can be damaged. On most of our boards the acceptable range of voltages connected
to digital I/O signals is 0-5V, and they can withstand about 0.5V beyond that (-0.5 to 5.5V) before being damaged.
However logic signals at 12V and even 24V are common, and if one of these is connected to a 5V logic chip, the
chip will be damaged, and the damage could even extend past that chip to others in the circuit.
Bent connector pins –This type of problem is often only a cosmetic issue and is easily fixed by bending the pins
back to their proper shape one at a time with needle-nose pliers. The most common cause of bent connector pins
is when a PC/104 board is pulled off the stack by rocking it back and forth left to right, from one end of the
connector to the other. As the board is rocked back and forth it pulls out suddenly, and the pins at the end get
bent significantly. The same situation can occur when pulling a ribbon cable off of a pin header. If the pins are
bent too severely, bending them back can cause them to weaken unacceptably or even break, and the connector
must be replaced.

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2. INTRODUCTION
The Quantum SBC family integrates a QSeven™ CPU computer-on-module (COM) plus a full analog and digital
data acquisition circuit into a PCI/104-Express small form factor single board computer (SBC). It is available in the
following model:
Model
CPU
Processor Speed
Memory
Operating
Temperature
QUA-GT40E-2GE
AMD G-T40E
1.0GHz
2GB
-20oC to +71oC
The SBC includes the following key system and data acquisition features:
Processor and Memory
1GHz AMD Fusion G-T40E processor
2GB 1,333MHz 64-bit DDR3L SDRAM system memory
4GB MLC flash memory (on most models)
AMI PnP Flash BIOS (AMD models only)
Video Features
Integrated AMD Radeon HD 6250 Graphics Chipset
Display port with resolution up to 1920 x 1080
18/24-bit LVDS LCD interface with resolution up to 1920 x 1080 supports dual independent displays
VGA CRT with resolution up to 1920 x 1080
Ethernet
10/100/1000Mbps Ethernet circuit integrated in the QSeven™ CPU Module using Realtek RTL8111E
PCIe Gigabit Ethernet controller
On-board transformer and termination network for direct connection to Ethernet cabling
Standard Peripheral Interfaces
3 16550-compatible RS-232 ports (2 have RS-422/485 capability)
5 USB 2.0 ports
PS/2 keyboard and mouse ports
The BIOS supports a USB keyboard during BIOS initialization, and it also supports legacy keyboard
emulation via USB for DOS. The USB ports can be used for keyboard and mouse at the same time that
the PS/2 keyboard and mouse are connected.
HD Audio Codec from Realtek ALC262
Mass Storage
1 x Serial ATA port w/ 600MB/s HDD transfer rate on standard SATA connector
1 x Serial ATA ports w/ 600MB/s HDD transfer rate on PCIe MiniCard socket
Analog I/O
4 single-ended channels, 12-bit resolution
0-3.3V input ranges
Unipolar input ranges
Digital I/O
Up to 10 programmable digital I/O lines
Enhanced output current capability: +24mA maximum

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PWM
Up to 4 programmable PWM output lines
Enhanced output current capability: +24mA maximum
Bus Interfaces
PCI-104 stackable I/O
PCIe/104 stackable I/O
1 PCIe MiniCard socket
Battery Backup
Quantum contains a backup battery for the real-time clock and BIOS settings. The battery is directly soldered to
the board and provides a minimum 7 year backup lifetime at 25°C. For longer lifetime an external battery of 3.3V
+/-10% may be attached to the board.
Power Supply
Quantum uses a wide-range input DC/DC power supply. This circuit accepts input voltages in the range of +6-
32VDC and produces 5.0VDC +2/-0% over the full range of its expected load (7A maximum). The input power
connector provides connections for provision of +12V for LCD backlight, cooling fan, and PCI-104 connector.

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3. FUNCTIONAL BLOCK DIAGRAM
Functional Block Diagram

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4. BOARD DIAGRAM
The diagram below shows the board layout, including connectors and mounting holes.
Quantum SBC Connector Location -- Top View
J1
J2
J20
J7
J10
J17
J14
J4
J21
J13
J15
J12
J11
J9
J5/J6
J3

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Quantum SBC Connector Location -- Bottom View with QSeven COM Attached
J24
J28
J26
J29
J25
J27
J31
J30

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5. CONNECTOR AND JUMPER LISTS
5.1 I/O Connectors
Connector
Function
J1
External battery
J2
PCI bus
J3
LCD backlight A
J4
Input power
J5
Display port
J6
HDMI port
J7
USB1 host/client port
J9
VGA
J10
SATA
J11
PCIe MiniCard / mSATA
J12
LCD interface channel B (LVDS format)
J13
LCD interface channel A (LVDS format)
J14
Data acquisition I/O
J15
Ethernet
J17
Audio
J20
PCIe/104 (Port 2 and Port 3)
J21
PS/2 keyboard & mouse
J24
LCD backlight B
J25
USB 4/5
J26
Serial COM ports 1/2
J27
USB 0/2
J28
QSeven computer-on-module
J29
Serial COM port 3
J30
Utility
J31
Fan
5.2 Configuration Jumpers
Jumper
Description
JP1
Battery
JP2
PCI/104 VIN voltage configuration
JP3
LVDS display backlight voltage selection
JP4
COM 1/2 RS-422/485 configuration
JP6
COM1/2 RS-422/485 termination
JP7
LCD supply channel A & B

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6. I/O CONNECTORS
Note: Pins marked as “key” are cut away or removed.
6.1 External Battery (J1)
Connector J1 is used to connect an optional external battery to replace the on-board backup battery. The on-
board battery provides about 7 years of lifetime at an ambient temperature of 25⁰C. For longer lifetime an external
battery of 3.3V 10% may be connected to this connector. Diamond Systems’cable part number 6980511 mates
with this connector.
1
Battery+
2
Ground
Connector type: Standard .1” single row straight friction lock pin header
Connector: DF13C-2P-1.25V
6.2 PCI Bus (J2)
The PCI bus connector is a solder-pin non-stack through (short pin) connector installed on the top side.
Expansion modules may be mounted only on the top side of the board due to the presence of the QSeven module
on the bottom side.
Pin
A
B
C
D
1
GND/5.0V KEY2
Reserved
+5V
AD0
2
VI/O
AD02
AD01
+5V
3
AD05
GND
AD04
AD03
4
C/BE0*
AD07
GND
AD06
5
GND
AD09
AD08
GND
6
AD11
VI/O
AD10
M66EN
7
AD14
AD13
GND
AD12
8
+3.3V
C/BE1*
AD15
+3.3V
9
SERR*
GND
SB0*
PAR
10
GND
PERR*
+3.3V
PME#
11
STOP*
+3.3V
LOCK*
GND
12
+3.3V
TRDY*
GND
DEVSEL#
13
FRAME*
GND
IRDY*
+3.3V
14
GND
AD16
+3.3V
CBE2#
15
AD18
+3.3V
AD17
GND
16
AD21
AD20
GND
AD19
17
+3.3V
AD23
AD22
+3.3V
18
IDSEL0
GND
IDSEL1
IDSEL2
19
AD24
C/BE3*
VI/O
IDSEL3
20
GND
AD26
AD25
GND
21
AD29
+5V
AD28
AD27
22
+5V
AD30
GND
AD31
23
REQ0*
GND
REQ1*
VI/O
24
GND
REQ2*
+5V
GNT0*
25
GNT1*
VI/O
GNT2*
GND
26
+5V
CLK0
GND
CLK1
27
CLK2
+5V
CLK3
GND
28
GND
INTD*
+5V
RST*
29
+12V
INTA*
INTB*
INTC*
30
-12V
Reserved
Reserved
GND

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Connector: PCI-104 non-stack-through with solder pins; bottom side shroud and shroud mounting holes not
required
Mating connector: Any PCI-104 stack-through connector
6.3 Input Power (J4)
Quantum SBCs accept a wide-range input DC/DC power supply. This circuit accepts input voltages in the range
of +6-32VDC. All other required voltages are generated on board. Each pin is rated at 3A max. Diamond Systems’
cable part number 6980510 mates with this connector.
Additional 12V power rails required by for LCD backlight, cooling fan, and PCI-104 connector (if needed) is
provided on connector J4.
1
+6-34VDC
2
+6-34VDC
3
Ground
4
Ground
5
+12V In
Connector type: Standard .1” single row, 5 positions, straight pin header with gold flash plating
Connector: IPL1-105-01-L-S-K
6.4 Display Port (J5)
The Quantum SBC provides a standard display port on connector J5. The resolution of the display port output
matches the resolution configured in the display port. An attached monitor should be able to automatically adapt
for many of the available resolutions.
Display Port Connector J5
Lane 0+
1
2
Ground
Lane 0-
3
4
Lane 1+
Ground
5
6
Lane 1-
Lane 2+
7
8
Ground
Lane 2-
9
10
Lane 3+
Ground
11
12
Lane 3-
Ground
13
14
Ground
Aux+
15
16
Ground
Aux-
17
18
Hot Plug Detect
Power return
19
20
3.3V
Signal Name Definition
Lane 0+/- to Lane 3+/- Main link
Ground Ground return
AUX +/- Auxiliary channel
Hot Plug Detect Hot Plug Detect
3.3V Power
Connector type: Standard Display Port connector, PC mount right angle

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6.5 HDMI (J6)
Freescale A9 i.MX6 Quantum SBC models provide a standard HDMI on connector J6. The resolution of the HDMI
output matches the resolution configured in the HDMI monitor. An attached monitor should be able to
automatically adapt for many of the available resolutions.
HDMI connector J6
Data 2+
1
2
Ground
Data 2-
3
4
Data 1+
Ground
5
6
Data 1-
Data 0+
7
8
Ground
Data 0-
9
10
Clock+
Ground
11
12
Clock-
CEC (NC)
13
14
Reserved
DDC Clock
15
16
DDC Data
Ground
17
18
+5V
Hot Plug Detect
19
Signal Name Definition
Data 0+/- to Data 3+/- TDMS data pair
Ground Ground return
Clock +/- TDMS data pair
DDC-CLOCK/DATA Signals used for monitor detection (DDC1 specification)
Hot Plug Detect Hot Plug Detect
+5V Power
Connector type: Standard HDMI type A connector, PC mount right angle
6.6 VGA (J9)
Connector J9 is used to connect a VGA monitor. Although the DDC serial detection pins are present, a 5V power
supply is not provided, and the legacy “Monitor ID” pins are also not used. Diamond Systems’cable part number
6980507 mates with this connector.
RED
1
Ground
2
GREEN
3
Ground
4
BLUE
5
Ground
6
HSYNC
7
VSYNC
8
Ground
9
DDC-Data
10
DDC-Clock
11
Ground
12
Signal Name Definition
RED RED signal (positive, 0.7Vpp into 75 Ohm load)
Ground Ground return for RED, GREEN, and BLUE signals
GREEN GREEN signal (positive, 0.7Vpp into 75 Ohm load)
BLUE BLUE signal (positive, 0.7Vpp into 75 Ohm load)
DDC-CLOCK/DATA Signals used for monitor detection (DDC1 specification)

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Connector type: Standard 2mm single row straight pin header with gold flash plating.
Connector: JST BM12B-GHS-TBT 1x12 vertical SMT
6.7 SATA (J10)
This connector avails the SATA connection on the carrier boards.
1
Ground
2
SATA 1 TX+
3
SATA 1 TX-
4
Ground
5
SATA 1 RX-
6
SATA 1 RX+
7
Ground
Connector type: Standard 7-pin SATA connector, right angle
Connector: Molex 470804005
6.8 mSATA / PCIe MiniCard (J11)
This socket can be configured for either PCIe MiniCard or mSATA disk module use. The configuration is done
with 0 ohm resistors where a conflict occurs between the two configurations as shown in bold.
PCIe MiniCard mSATA mSATA / PCIe MiniCard
1
2
+3.3V
3
4
Gnd
5
6
+1.5V
Clkreq-
7
8
Gnd
Gnd
9
10
PCIe Clk-
PCIe 1 Clk-
11
12
PCIe Clk+
PCIe 1 Clk+
13
14
Gnd
Gnd
15
16
KEY
17
18
Gnd
19
20
W_Disable#
Gnd
Gnd
21
22
PCIe Reset#-
PCIe 0 RX-
SATA 1 RX-
23
24
+3.3V
PCIe 0RX+
SATA 1 RX+
25
26
Gnd
Gnd
Gnd
27
28
+1.5V
Gnd
Gnd
29
30
SMB Clk
PCIe 0 TX-
SATA 1 TX-
31
32
SMB Data
PCIe 0 TX+
SATA 1 TX+
33
34
Gnd
Gnd
Gnd
35
36
USB 4-
Gnd
Gnd
37
38
USB 4+
+3.3V
+3.3V
39
40
Gnd
+3.3V
+3.3V
41
42
WWAN LED#-
Ground
Ground
43
44
WLAN LED#
45
46
WPAN LED#
47
48
+1.5V
Pull-up to +3.3V
Pull-up to +3.3V
49
50
Gnd
51
52
+3.3V

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Note: For mSATA mode, the PCIe clock signal is not active because CLKREQ- pin is not driven low by the
module.
Connector: JAE MM60-52B1-E1-R650 mSATA / PCIe MiniCard socket
JAE NT4R1600 3.55mm high M2 x 0.4 threaded mounting spacers qty 2 built into baseboard for full-
size module
6.9 LVDS LCD Interface (J12, J13)
Connector J13 is used to connect LVDS LCD Channel A. Connector J12 is used to connect LVDS LCD Channel
B. Voltage selection for LCD can be configured on JP7. If needed, the LCD backlight can be connected to
connector JP3. Diamond Systems’cable part number 6981211 mates with these connectors for LCD connection.
J13, LCD Channel A
A3+
1
2
A2+
A3-
3
4
A2-
Signal Ground
5
6
Signal Ground
A1+
7
8
A0+
A1-
9
10
A0-
Signal Ground
11
12
Signal Ground
Channel A Clk+
13
14
Vcc 3.3V / 5V (jumper configured)
Channel A Clk-
15
16
Vcc 3.3V / 5V (jumper configured)
Signal Ground
17
18
Signal Ground
DID_DAT
19
20
DID_CLK
J12, LCD Channel B
B3+
1
2
B2+
B3-
3
4
B2-
Signal Ground
5
6
Signal Ground
B1+
7
8
B0+
B1-
9
10
B0-
Signal Ground
11
12
Signal Ground
Channel A Clk+
13
14
Vcc 3.3V / 5V (jumper configured)
Channel A Clk-
15
16
Vcc 3.3V / 5V (jumper configured)
Signal Ground
17
18
Signal Ground
DID_DAT
19
20
DID_CLK
Connector type: Standard 2mm dual row straight pin header with gold flash plating.
Connector: Channel A: JST BM20B-GHDS-G-TF 2x10 straight 1.25mm pitch gold
Channel B: JST BM20B-GHDS-G-TF 2x10 straight 1.25mm pitch gold
Mating connector: JST GHDR-20V-S
Crimp terminal: JST SGHD-002GA-P0.2

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6.10 LCD Backlight (J3, J24)
Connector J3 provides the backlight power for LCD Channel A Connector. J24 provides the backlight power for
LCD Channel B and control for an optional LCD panel. Diamond Systems’cable part number 6981210 mates with
this connector.
J3, LCD Backlight Channel A
1
LCD A Power
2
LCD A Power
3
Ground
4
Ground
5
Enable (GPIO output), 0 = off, open circuit = on
6
Brightness, 0-5VDC variable; 0V = max, 5V = min
J24, LCD Backlight Channel B
1
LCD B Power
2
LCD B Power
3
Ground
4
Ground
5
Enable (GPIO output), 0 = off, open circuit = on
6
Brightness, 0-5VDC variable; 0V = max, 5V = min
The LCD power is jumper selectable for +5V or +12V. See the description for JP3.
The enable signal controls power to the backlight. It is controlled by digital I/O signal.
Connector Part Numbers: Molex 53398-0671
6.11 Data Acquisition (J14)
Connector J14 provides 10 digital I/O lines from PIC controller. These lines have ESD protection to protect the
SBC from potential damage. The connector also provides four analog input channels and four pulse width
modulator outputs. Diamond Systems’cable part number 6980501 mates with this connector.
DIO 0
1
2
DIO 1
DIO 2
3
4
DIO 3
DIO 4
5
6
DIO 5
DIO 6
7
8
DIO 7
DIO 8
9
10
DIO 9
PWM 1A
11
12
PWM 1B
PWM 1C
13
14
PWM 1D
Ground
15
16
Agnd
AN0
17
18
AN1
AN2
19
20
AN3
Signal Definition
DIO 0-9 Digital I/Os
PWM 1A:1D PWM outs
AN 0:3 Analog inputs
Ground Digital ground
Agnd Analog ground
Connector type: Standard 2mm dual row straight pin header with gold flash plating
Connector: JST BM20B-GHDS-G-TF 2x10 straight 1.25mm pitch gold

Quantum SBC User Manual Rev A www.diamondsystems.com Page 18
6.12 Ethernet (J15)
The 10/100/1000 Base-T, full-duplex Ethernet interface is provided by connector J15. Diamond Systems’cable
part number 6980502 mates with this connector.
MX1+
1
MX1-
2
MX2+
3
MX2-
4
MX3+
5
MX3-
6
MX4+
7
MX4-
8
NC
9
Ground
10
Signal Definition
TX+, TX- Transmit data from Q7 connector
RX+, RX- Receive data by Q7 connector
Ground System ground
Connector type: Standard 2mm single row straight pin header with gold flash plating
Connector: JST BM10B-GHS-TBT 1x10 vertical SMT
6.13 Audio (J17)
Quantum provides an HDA audio circuit based on the Realtek ALC262 audio chip. The circuit offers stereo line in,
stereo line out, and mono mic in connections. Diamond Systems’cable part number 6980508 provides the 3.5
mm output and input jacks for Lineout, Mic and Line in connection.
1
LineOut –L
2
LineOut –R
3
GND_Audio
4
LineIn –L
5
LineIn –R
6
GND_Audio
7
MIC IN
8
GND_Audio
Connector: JST BM08B-GHS-TBT 1x8 vertical SMT

Quantum SBC User Manual Rev A www.diamondsystems.com Page 19
6.14 PCIe/104 (J20)
The PCIe/104 (J20) connector is a 1-bank version of the PCIe/104 connector, providing only the first bank of pins
numbered 1-52. It offers up to two PCIe x1 lanes from ports 2 and 3 of the QSeven module (third and fourth
lanes) plus up to two USB ports from ports 6 and 7 of the QSeven module (seventh and eighth ports). It also
provides connections for SMB signals from the QSeven module.
PCIe/104 SpecificationCarrier Carrier PCIe/104 Specification
USB-OC-
USB-OC-
1
+
5
V
T
A
B
2
PCIe Reset-
PCIe Reset-
+3.3V
+3.3V
3
4
+3.3V
+3.3V
USB 1+
USB 7+
5
6
USB 6+
USB 0+
USB 1-
USB 7-
7
8
USB 6-
USB 0-
Gnd
Gnd
9
10
Gnd
Gnd
PCIe 1 T+
PCIe 3 T+
11
12
PCIe 2 T+
PCIe 0 T+
PCIe 1 T-
PCIe 3 T-
13
14
PCIe 2 T-
PCIe 0 T-
Gnd
Gnd
15
16
Gnd
Gnd
PCIe 2 T+
17
18
PCIe 3 T+
PCIe 2 T-
19
20
PCIe 3 T-
Gnd
Gnd
21
22
Gnd
Gnd
PCIe 1 R+
PCIe 3 R+
23
24
PCIe 2 R+
PCIe 0 R+
PCIe 1 R-
PCIe 3 R-
25
26
PCIe 2 R-
PCIe 0 R-
Gnd
Gnd
27
28
Gnd
Gnd
PCIe 2 R+
29
30
PCIe 3 R+
PCIe 2 R-
31
32
PCIe 3 R-
Gnd
Gnd
33
34
Gnd
Gnd
PCIe 1 Clk+
PCIe 3 Clk+
35
36
PCIe 2 Clk+
PCIe 0 Clk+
PCIe 1 Clk-
PCIe 3 Clk-
37
38
PCIe 2 Clk-
PCIe 0 Clk-
+5V_STBY
+5V_STBY
39
40
+5V_STBY
+5V_STBY
PCIe 2 Clk+
41
42
PCIe 3 Clk+
PCIe 2 Clk-
43
44
PCIe 3 Clk-
Dir
Dir
45
46
PU to 3.3V
Pwr Good
SMB Data
SMB Data
47
48
PCIe x16 Clk+
SMB Clk
SMB Clk
49
50
PCIe x16 Clk-
SMB Alert-
SMB Alert-
51
52
PSON-
Connector: Samtec ASP-129637-08 QMS series 15.24mm stacking height single bank
Mating connector: Samtec ASP-129646-18 QFS series 15.24mm stacking height single bank or ASP-129646-03
QFS series 15.24mm stacking height 3-bank connector

Quantum SBC User Manual Rev A www.diamondsystems.com Page 20
6.15 PS/2 Mouse and Keyboard (J21)
Connector J21 provides the standard PS/2 keyboard and mouse signals. Diamond Systems’cable part number
6980506 mates with this connector and provides standard connections for PS/2 keyboard and mouse.
+5V
1
KB Data
2
KB Clk
3
Ground
4
+5V
5
MS Data
6
MS Clk
7
Ground
8
Signal Definition
+5V System +5V power
KB Data Keyboard data
KB Clk Keyboard clock
MS Data Mouse data
MS Clk Mouse clock
Ground System ground
Key Key pin (missing on pin header, plugged on mating cable)
Connector type: Standard 2mm single row right angled pin header with gold flash plating
6.16 USB Host/Client Port (J7)
Quantum features one USB Host / Client port on connector J7. Port 1 may be a client port on some of the Q7
modules. J7 interfaces to USB port 1. USB 2.0 provides a 480Mbps maximum data transfer rate. The shield pin
on each connector is tied to system ground. Diamond Systems’cable part number 6980504 mates with these
connectors for Host. Diamond Systems’cable part number 6980505 mates with these connectors for Client.
1
USB0 Power
2
USB0 Data-
3
USB0 Data+
4
Ground
5
Device ID
Connector: JST BM05B-GHS-TBT 1x5 vertical SMT (ports 1), top side of PCB
Mating connector: JST GHR-5V-S