Advantech MIC-7900 User manual

User Manual
MIC-7900
Embedded Fan-less IPC System
866-412-6278
CoastIPC.com

MIC-7900 User Manual ii
Attention!
Please note:
This package contains a hard-copy user manual in Chinese for China CCC certifica-
tion purposes, and there is an English user manual included as a PDF file on the CD.
Please disregard the Chinese hard copy user manual if the product is not to be sold
and/or installed in China.

iii MIC-7900 User Manual
Copyright
The documentation and the software included with this product are copyrighted 2017
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice.
No part of this manual may be reproduced, copied, translated or transmitted in any
form or by any means without the prior written permission of Advantech Co., Ltd.
Information provided in this manual is intended to be accurate and reliable. However,
Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements
of the rights of third parties, which may result from its use.
Acknowledgements
Award is a trademark of Award Software International, Inc.
Intel® and Pentium® are trademarks of Intel Corporation.
Microsoft Windows® is a registered trademark of Microsoft Corp.
Cooper is a trademark of Eaton Corporation.
Infineon is a trademark of Infineon Technologies.
TI is a trademark of Texas Instruments.
Asmedia is a trademark of Asmedia Technology INC.
Exar is a trademark of Exar Corporation.
INTERSIL is a trademark of Intersil Corporation.
Nuvoton is a trademark of Nuvoton Technology Corporation.
Vcore is a trademark of International Rectifier
Foxconn is trademark of Foxconn Interconnect Technology
All other product names or trademarks are properties of their respective owners.
For more information about this and other Advantech products, please visit our web-
site at:
http://www.advantech.com/
http://www.advantech.com/ePlatform/
For technical support and service, please visit our support website at:
http://support.advantech.com.tw/support/
Part No. 2001790020 Edition 1
Printed in China January 2017

MIC-7900 User Manual iv
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandise
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Declaration of Conformity
FCC Class B
Note: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.

v MIC-7900 User Manual
Technical Support and Assistance
1. Visit the Advantech web site at www.advantech.com/support where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
–Product name and serial number
–Description of your peripheral attachments
–Description of your software (operating system, version, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages
Warnings, Cautions and Notes
Warning! Warnings indicate conditions in which there is a chance of personal
injury!
Caution! Cautions are included to help you avoid damaging hardware or losing
data. e.g.:
There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.
Note! Notes provide optional additional information.

MIC-7900 User Manual vi
Safety Instructions
1. Please read these safety instructions carefully.
2. Please keep this User’s Manual for later reference.
3. Please disconnect this equipment from AC outlet before cleaning. Use a damp
cloth. Don’t use liquid or sprayed detergent for cleaning. Use moist sheet or
cloth for cleaning.
4. For pluggable equipment, the socket-outlet shall near the equipment and shall
be easily accessible.
5. Please keep this equipment from humidity.
6. Lay this equipment on a reliable surface when installing. A drop or fall could
cause injury.
7. The openings on the enclosure are for air convection hence protecting the
equipment from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source when connecting the equipment to
the power outlet.
9. Place the power cord such a way that people cannot step on it. Do not place
anything over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for long time, disconnect the equipment from mains
to avoid being damaged by transient over-voltage.
12. Never pour any liquid into ventilation openings; this could cause fire or electrical
shock.
13. Never open the equipment. For safety reasons, only qualified service personnel
should open the equipment.
14. If one of the following situations arises, get the equipment checked by service
personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment does not work well, or you cannot get it to work according to
the user's manual.
The equipment has been dropped and damaged.
The equipment has obvious signs of breakage.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY GO BELOW -40° C (-40° F) OR ABOVE 85°
C (185° F). THIS COULD DAMAGE THE EQUIPMENT. THE EQUIPMENT
SHOULD BE IN A CONTROLLED ENVIRONMENT.
16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
17. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).
18. RESTRICTED ACCESS AREA: The equipment should only be installed in a
Restricted Access Area.
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

vii MIC-7900 User Manual
Packing List
Before installation, please ensure the following items have been shipped:
Ordering Information
Optional i-Module
MIC-7900 bare-bone system x 1
MIC-7900 Startup manual x 1 P/N: 2001790000
MIC-7900 Startup manual x1 (CHT) P/N: 2001790010
MIC-7900 Driver CD x 1 P/N: 2061790000
4-pin Phoenix connector P/N: 1652003234
Mounting bracket x 2 P/N: 1960070543N001
SATA cable x 1 P/N: 1700013095
SATA Power cable x 1 P/N: 1700024372-01
2xDP9 Ports cable x 2 P/N: 1700019968
Module
Number CPU VGA 2.5' HDD CFast USB3.0 GbE LAN COM PCIE/PCI Exp Power
MIC-
7900-
S5A1E D-1559 1 1 1 4 4 2 i-module
(Optional) DC9~36V
MIC-
7900-
S6A1E D-1539 1 1 1 4 4 2 i-module
(Optional) DC9~36V
Module Number Description
4-slot Expansion module
MIC-75M13-00A1E 1 x PCIEx16+3xPCI slot i-module
MIC-75M40-00A1E 1 x PCIEx8+3xPCIEx4 slot i-module
2-slot Expansion module
MIC-75M20-00A1E 1 x PCIEx16+1xPCIEx4 slot i-module
MIC-75M20-01A1E 2 x PICEx 8 slot i-module
MIC-75M11-00A1E 1 x PCIEx16+1xPCI slot i-module
2-slot Expansion and Storage Module
MIC-75S20-00A1E 2 x PCIE slot + 2x2.5” hot-swap HDDs

MIC-7900 User Manual viii
Optional Accessories
i-module Optional Accessories
Part Number Description
96PSA-A220W24P4-1 ADP A/D 100-240V 220W 24V
96PSA-A150W19P4-1 ADP A/D 100-240V 150W 19V
1702002600 Power Cord 3P UL/CSA(USA) 125V 10A 1.83M 180D
1700022940-01 Power cord PSE 7A 125V 3P 3m DAC-ST01
1702002605 Power cord 2P FRANCE 10A/16A 220V 1.83M 90D
1700018704 Power cord BSI 3PIN UK 1.8M
AIIS-DIO32-00A1E AIIS-32bit GPIO module
98R2C48510E Isolation COM module
i-Door Module
(MOS series module)
Supports i-Door module (MOS series), except PoE
Please refer to Advantech website below or search "iDoor Module
Mini PCIe Expansion Kit".
http://www.advantech.com.tw/products/idoor-module-mini-pcie-
expansion-kit/sub_bc858a7f-a52b-441b-a59c-f511289f98bc
i-Door Module
(PCM series module)
Supports i-Door module (PCM series) except PoE
Please refer to Advantech website below:
http://www.advantech.com/products/idoor-technology-mini-pcieex-
pansion-kit/sub_efdb96af-a8f7-4cde-9592-dbf5c9794d16
Note: A bracket is required to fix PCM series i-door module. Pleaser
refer to P/N:
1960065854N001 i Door_bracket
Part Number Description
98R1751300E 1x8cm FAN module (for MIC-75M13/75M40/75S20)
98R1752000E 2x4cm FAN module (for MIC-75M20/MIC-75M20-01/MIC-75M11)

ix MIC-7900 User Manual
Contents
Chapter 1 General Introduction ...........................1
1.1 Introduction ...............................................................................................2
1.2 Product Features.......................................................................................2
1.2.1 General.........................................................................................2
1.2.2 Display..........................................................................................2
1.2.3 Ethernet ........................................................................................2
1.3 Chipset......................................................................................................3
1.3.1 Functional specification.................................................................3
1.4 Mechanical Specifications.........................................................................4
1.4.1 Dimensions...................................................................................4
Figure 1.1 MIC-7900 Mechanical Dimension Drawing ................4
1.4.2 Weight...........................................................................................5
1.5 Power Requirements.................................................................................5
1.5.1 System power...............................................................................5
1.5.2 RTC battery...................................................................................5
1.6 Environment Specification.........................................................................5
1.6.1 Operating temperature..................................................................5
1.6.2 System safety certification test temperature.................................5
1.6.3 Relative humidity...........................................................................5
1.6.4 Storage temperature.....................................................................5
1.6.5 Vibration during operation.............................................................5
1.6.6 Shock during operation.................................................................5
1.6.7 Safety............................................................................................5
1.6.8 EMC..............................................................................................5
Chapter 2 H/W Installation....................................7
2.1 Introduction ...............................................................................................8
2.2 Jumpers ....................................................................................................8
2.2.1 Jumper Description.......................................................................8
2.2.2 Jumper List ...................................................................................9
Table 2.1: Jumper List.................................................................9
2.3 Connectors..............................................................................................10
2.3.1 MIC-7900 External I/O Connectors.............................................10
Figure 2.1 MIC-7900 Front View................................................10
Table 2.2: COM Connector Pin Assignments............................10
Figure 2.2 Ethernet Connector ..................................................11
Table 2.3: Ethernet Connector Pin Assignments.......................11
Figure 2.3 Audio Connector.......................................................11
Table 2.4: Audio Connector Pin Assignments...........................11
Figure 2.4 USB 3.0 Connector...................................................12
Table 2.5: USB 3.0 Connector Pin Assignment.........................12
Figure 2.5 VGA Connector ........................................................12
Table 2.6: VGA Connector Pin Assignments.............................12
Figure 2.6 4-pin Header.............................................................13
Table 2.7: Pin Assignments for Power Connector Pin Header..13
Figure 2.7 Power Button............................................................13
Figure 2.8 LED Indicators..........................................................13
2.4 Installation...............................................................................................14
2.4.1 HDD Installation..........................................................................14
2.4.2 Memory Installation.....................................................................15
2.4.3 Mini-PCIe Installation..................................................................16
2.4.4 Internal USB 2.0 Installation .......................................................16
2.4.5 COM 3/4 Ports Installation..........................................................16

MIC-7900 User Manual x
2.4.6 MIC-7900 MB I/O Connector...................................................... 17
Chapter 3 AMI BIOS Setup................................. 19
3.1 Introduction............................................................................................. 20
3.2 Entering Setup........................................................................................ 21
3.2.1 Main Setup.................................................................................. 21
3.2.2 Advanced BIOS Features Setup................................................. 22
3.2.3 IntelRCSetup .............................................................................. 39
3.2.4 Security....................................................................................... 63
3.2.5 Boot ............................................................................................ 64
3.2.6 Save & Exit................................................................................. 66
Chapter 4 Software Installation......................... 67
4.1 Chipset Software Installation Utility......................................................... 68
4.1.1 Before you begin......................................................................... 68
4.1.2 Introduction................................................................................. 68
4.1.3 Windows Server 2012 / Windows 10 / Windows 8.1 / Windows 7..
69
4.2 Integrated Graphic Device Setup............................................................ 69
4.2.1 Introduction................................................................................. 69
4.2.2 Windows Server 2012 / Windows 10 / Windows 8.1 / Windows 7 /
Linux Driver Setup..................................................................... 69
4.3 Install USB 3.0........................................................................................ 70
4.3.1 Introduction................................................................................. 70
4.4 LAN Configuration................................................................................... 70
4.4.1 Introduction................................................................................. 70
4.4.2 Features...................................................................................... 70
4.4.3 Installation................................................................................... 70
4.4.4 Windows Server 2012 / Windows 10 / Windows 8.1 / Windows 7..
71
4.5 TPM ........................................................................................................ 71
4.5.1 Introduction................................................................................. 71
4.5.2 TPM installation .......................................................................... 71
Appendix A Programming the Watchdog Timer.73
A.1 Programming the Watchdog Timer......................................................... 74
A.1.1 Watchdog Timer Overview ......................................................... 74
A.1.2 Programming the Watchdog Timer............................................. 74
Table A.1: Watchdog Timer Registers....................................... 76
A.1.3 Example Program....................................................................... 77
Appendix B Programming the GPIO....................81
B.1 Supported GPIO Register....................................................................... 82
B.1.1 GPIO Registers........................................................................... 82
B.1.2 GPIO Example Program............................................................. 83

Chapter 1
1General Introduction
This chapter gives background
information on MIC-7900.

MIC-7900 User Manual 2
1.1 Introduction
The MIC-7900 compact fan-less system is the most advanced Intel® Xeon®
Broadwell-DE SoC series platform for server-grade IPC applications that require high-
performance computing power & flexible expansion slot module (i-module). MIC-7900
supports Intel Xeon D-1559 & D-1539 processor and SO-DIMM DDR4 ECC or non-
ECC memory up to 32 GB. MIC-7900 also supports full range of i-module that includ-
ing MIC-75M13/MIC-75M40/MIC-75M20-01/MIC-75M11 and MIC-75S20. This sys-
tem total supports a lot off storage space, five for 2.5’ storage and one for M.2. MIC-
7900 combined with i-module (MIC-75S20) that can support to five 2.5’ storage and
two for Hot swappable tray.
In addition, the MIC-7900 use a highly flexible modular design that supports a lot of
module for different application which including Isolation COM module and DIO mod-
ule IC-7900 supports 4 Gigabit Ethernet LAN ports for industrial server/networking
application.
These powerful I/O capabilities ensure even more reliable data storage capabilities
and high-speed I/O peripheral connectivity.
1.2 Product Features
1.2.1 General
CPU: Intel ® Xeon Processor Broadwell-DE SoC CPU
System Memory: Dual 260pin SODIMM DDR4 socket, up to 32GB, support
ECC.
HDD:
–Supports 1 drive bay space for SATA 2.5" HDD/SSD
–Supports 1 CFast slot
M.2: Support 1 x M.2 socket (PCIE signal only)
Graphic: VGA
Ethernet Port: 4 x RJ45 (2 by LAN module)
Watchdog Timer: Single chip Watchdog 255-level interval timer, setup by soft-
ware
I/O Interface: 2 x RS232/422/485
USB: 4 x USB3.0
Audio: Line-out, Mic-in
Expansion interface: 1 x Mini-PCIe socket with U-SIM
1.2.2 Display
Chipset: ASPEED 1400 controller with 256 MB VGA memory provides basic 2D
VGA function.
Resolution:
–VGA: Supports up to 1920 x 1200 @ 60 Hz
Note! MIC-7900 does not support m-SATA storage.

3 MIC-7900 User Manual
Chapter 1 General Introduction
1.2.3 Ethernet
Chipset:
–LAN 1: Intel® i210IT
–LAN 2: Intel® i210IT
–LAN 3: Intel® i210IT
–LAN 4: Intel® i210IT
Speed: 10/100/1000 Mbps
Interface: 4 x RJ45
Standards: Compliant with IEEE 802.3, IEEE802.3U, IEEE 802.ab.
1.3 Chipset
1.3.1 Functional specification
1.3.1.1 Processor
1.3.1.2 Chipset
Processor Intel® Xeon Processor Broadwell-DE SoC CPU
Manufacturing Technology: 14nm
Memory
Support DDR4-2133MHz up to 32 GB
SODIMM Socket:
–260-pin SODIMM socket*2
Support ECC
Chipset inte-
grated Intel HD
Graphic
ASPEED 1400 controller with 256 MB VGA memory provides basic
2D VGA function.
IO interface
–VGA: Support resolution up to 1920 x 1200 @ 60 Hz
(VGA connector: On-board D-SUB 15P)
SATA Interface
CPU: Intel Xeon Processor Broadwell-DE
Four (4) SATA Revision 3.0 ports
Native AHCI appearance to OS
Partial/Slumber power management modes
Capable of 6Gbit/s transfer rate
Audio Link CPU: TI PCM2912
16-bit DAC and 16-bit ADC
USB Interface
CPU: Intel Xeon Processor Broadwell-DE
USD host interface for 4 x USB3.0 port
Supports high-speed, full-speed, and low-speed capable
Supports legacy keyboard/mouse software
Power
Management
CPU: Intel Xeon Processor Broadwell-DE
Supports ACPI 5.0
ACPI Power Management Logic Supported
Power Connector: Plug-in block 4Px1
BIOS AMI 128Mb Flash BIOS via SPI

MIC-7900 User Manual 4
1.3.1.3 Others
1.4 Mechanical Specifications
1.4.1 Dimensions
Serial ports
Nuvoton NCT 6106D supported
Up to 6 serial ports by Nuvoton NCT6106D supported
High speed NS16C550A compatible UARTs with date rates to 1.5
Mbps
Supports IRQ sharing among serial port on XPE
COM1/2: Support to RS-232/422/485 and setting mode by BIOS and
supports auto flow control
COM 3~6: Support to RS-232
Serial ports connector: D-SUB CON.9P
LAN 1/2
LAN1: Intel®i210IT; LAN2: Intel®i210IT
Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.ab.
Supports 10/100/1000 Mbps
Supports Wake on LAN
LAN 3/4
LAN3: Intel®i201IT; LAN4: Intel i210IT
Compliant with IEEE 802.3, IEE 802.3u, IEEE 802.2b.
Support 10/100/1000Mbps
(note: LAN 3/4 is expanded by LAN module)
Audio
TI PCM2912
16-bit DAC and 16-bit ADC
Audio Jack (MIC-in & Line-out)
mono recording, DAC support 16bit
Battery backup BR2032 3V/190mAh
73
78.20
192
230
22 186
15018
226
252
14
5
10
14
UNIT : mm

5 MIC-7900 User Manual
Chapter 1 General Introduction
Figure 1.1 MIC-7900 Mechanical Dimension Drawing
1.4.2 Weight
2.9kg (6.39lbs)
1.5 Power Requirements
1.5.1 System power
Minimum power input: DC12V (-25%) -30V (+20%), Absolute Maximum Ratings
Voltage is 9V - 36V
1.5.2 RTC battery
BR2032 3 V/190 mAh
1.6 Environment Specification
1.6.1 Operating temperature
-20 ~ 50 °C with 0.7m/sec air flow: with 1 x Industrial SSD without PC expansion
boards
1.6.2 System safety certification test temperature
0 ~ 40 °C with 2.5” SSD
1.6.3 Relative humidity
95% @ 40 °C (non-condensing)
1.6.4 Storage temperature
-40 ~ 85 °C (-40 ~ 185 °F)
1.6.5 Vibration during operation
When system is equipped with SSD only: 3 Grms, IEC 60068-2-64, random, 5 ~
500 Hz, 1 Oct/min., 1 hr/axis, x,y,z 3 axes.
When system is equipped with 2.5-inch HDD: 1 Grms, IEC 60068-2-64, random,
5 ~ 500 Hz, 1 Oct/min., 1 hr/axis, x,y,z 3 axes.
1.6.6 Shock during operation
When system is equipped with SSD only: 20 G, IEC 60068-2-27, half sine, 11
ms duration.
1.6.7 Safety
CCC, BSMI
1.6.8 EMC
CE, FCC, CCC, BSMI

MIC-7900 User Manual 6

Chapter 2
2H/W Installation
This chapter introduces external
I/O and the installation of
MIC-7900 hardware.

MIC-7900 User Manual 8
2.1 Introduction
The following sections show the internal jumper settings and the external connectors
and pins assignment for applications.
2.2 Jumpers
2.2.1 Jumper Description
You may configure the MIC-7900 to match the needs of your application by setting
jumpers. A jumper is a metal bridge used to close an electric circuit. It consists of two
metal pins and a small metal clip (often protected by a plastic cover) that slides over
the pins to connect them. To close a jumper, you connect the pins with the clip. To
open a jumper, you remove the clip. Sometimes a jumper will have three pins,
labelled 1, 2 and 3. In this case you would connect either pins 1 and 2, or 2 and 3.
The jumper settings are schematically depicted in this manual as follows.
A pair of needle-nose pliers may be helpful when working with jumpers. If you have
any doubts about the best hardware configuration for your application, contact your
local distributor or sales representative before you make any changes. Generally, you
simply need a standard cable to make most connections.
closed 2-3closedopen
12 12
closed 2-3closedopen

9 MIC-7900 User Manual
Chapter 2 H/W Installation
2.2.2 Jumper List
2.2.2.1 Clear CMOS
MIC-7900 single board computer contains a jumper that can erase CMOS data and
reset the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset the CMOS data, set CMOS1 to 2-3 closed for just a few
seconds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its default setting.
2.2.2.2 System AT/ATX Mode Function Option
MIC-7900 support AT or ATX mode and Default is ATX module. if you want to change
to AT mode that you can find AT/ATX mode jumper in motherboard.
2.2.2.3 System ME Mode Function Option
MIC-7900 supports ME Enable & Disable and Default is “Disable”. If you want to
change the ME mode that you can set ME mode jumper in Mother-board.
2.2.2.4 System Watch-Dog Mode Function Option
MIC-7900 single board computer contains a jumper that can set Watch-Dog mode.
Table 2.1: Jumper List
Label Function
JCMOS1 Clear CMOS
PSON1 System AT/ATX mode option
JME1 ME jumper mode option
JWDT1_JOBS1 Watch-Dog mode option
CMOS1 Clear CMOS
Footprint 3x1 Pin
Setting Function
(1-2) Normal (default)
(2-3) Clear CMOS
PSON1 System AT/ATX mode option
FootPrint 3x1 Pin
Setting Function
(1-2) AT module
(2-3) ATX module
JME1 System ME mode option
FootPrint 3x1 Pin
Setting Function
(1-2) ME Enable
(2-3) ME Disable (Default)
JWDT1_JOBS1 Watch-Dog mode function option
FootPrint 5x1 pin
Setting Function
(2-3) Watch Dog
(4-5) ERR_BEEP

MIC-7900 User Manual 10
2.3 Connectors
2.3.1 MIC-7900 External I/O Connectors
Figure 2.1 MIC-7900 Front View
2.3.1.1 COM Connector
MIC-7900 provides two 9 pin D-Sub connector that offer RS-232/422/485. Default
setting is RS-232 and can be modified by BIOS selection table. MIC-7900 also pro-
vides 4 more COM RS-232 Pin header inside which expanded by cable. You can find
cable in accessory box. Please refer Pin header location in Chapter 3.
CFast Card Slot 9 - 36VDC Power
Power
COM 1
Line Out
LAN 1/2
USB3.0
COM 1/2
VGA
Mic In
TX/RX LED
COM 2
TX/RX LED
HDD LED
LAN 3/4
Table 2.2: COM Connector Pin Assignments
RS-232 RS-422 RS-485
Pin Signal Name Signal Name Signal Name
1 DCD Tx- DATA-
2RxD Tx+ DATA+
3 TxD Rx+ NC
4DTR Rx- NC
5 GND GND GND
6DSR NC NC
7RTS NC NC
8CTS NC NC
9RI NC NC
Note! NC represents “No Connection”.