Piesia TOP2550 User manual

Mainboard Interface Description
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TOP2550 Motherboard
（PCB Rev:1.00）
Manual Version 1.00
2013.02.23

Mainboard Interface Description
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1 Introduction
TOP-2550 is a low power consumption Mini-ITX industrial motherboard，Adopt Intel Cedar View
CPU and NM10 chipsets,support Cedar View -D、Cedar View –N CPU.
1.1 Main Feature
1.1.1 Onboard CPU,support Intel Atom D2550/D2700/N2600/N2800 processors.
1.1.2 Onboard 2GB DDR3. (SO-DIMM socket maximum 4GB optional)
1.1.3 Support HDMI，Standard HDMI interface.
1.1.4 Support RGB CRT，Standard DB15F.
1.1.5 Support single CH 24bit LVDS output.
1.1.6 Onboard a gigabit network card.
1.1.7 Onboard HDA ALC662, Support MIC_in/LINE_out and pin header.
1.1.8 Support 3-Pin SPDIF.
1.1.9 Onboard dual channel audio amplifiers，Per channel support 4 w / 8 Ω horn，row pin output
（Option）.
1.1.10 1*Mini-PCIE socket(Wifi/3G).
1.1.11 1*Mini-SATA socket.
1.1.12 2*SATA 2.0 interfaces.
1.1.13 6*USB 2.0 port。
1.1.14 Provide 4*RS232 pin headers,2*RS485/RS422 pin headers.
1.1.15 Support PS/2，pin header.
1.1.16 Support LPT，pin header.
1.1.17 2*3-Pin FAN connectors.
1.1.18 Support 8*GPIO.
1.2 Power Supply
Input DC power connector,DC_12V(+/-5%).
Support AT/ATX power supply.
1.3 Size
170 mm x 170 mm
1.4 Working Environment
Working Temp:--20°C~70°C (-4°F~158°F)
Storage Temp:-20°C~80°C (-4°F~176° )
Operating Humidity: 10%~90% (non-condensing)

Mainboard Interface Description
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2 TOP550 Front side interfaces layout
TOP floor layout as below:
Remark:Interfaces in the above picture,Pin 1 are in square shape.

Mainboard Interface Description
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2.1 DC_IN1、DC_IN2&DC_IN3
Motherboard input power connectors,Production can only choose one interface, customer
connections as needed.
DC_IN1 adopt ATX_12V power interface.(conventional product )
DC _IN2 is the DT-126RP-02P type Terminal Blocks interface.Please pay more attention to the
Positive/Negative pole of the power.
DC_IN3 for DC JACK connector, the center column diameter of 2.5 mm.
(please input the power,after devices,cables all installed.)
2.2 HDMI1&HDMI2
HDMI1 is a standard HDMI output interface.
HDMI2 is a user-defined HDMI pin header,definition as below.
2.3 CRT1 &VGA1
CRT1 is a standard CRT monitor output connector.
VGA1 is 2×5,2mm pin header,can not use at the same time.

Mainboard Interface Description
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2.4 LVDS1
24bit single CH LVDS interface,adopt 2×15,2mm pin header,definition as below:
VCC_LVDS is the power for screen,default setting is 3.3V,choose through the resistance.
.
Select resistance
VCC_LVDS voltage
R593
3.3V（default setting）
R584
5V
2.5 LVDS_P
LVDS screen back light interface,adopt CJT A2001WR-6P-1connector or other
compatible connector.Definition as below:
LVDS_P
LVDS_P definition
1
Ground
2
Ground
3
Back light luminance control
4
Back light-ON
5
12V
6
12V
2.6 SPDIF
Optical fiber audio output interface is optional.

Mainboard Interface Description
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2.7 USB01、USB23、USB45
All are USB interfaces,support USB 1.0/1.1/2.0 devices.
USB45 is standard USB Type A interface;USB01 and USB23 is 2×5,2.54mm pin
header,definition as below:
2.8 LAN1
10/100/1000 M LAN standard RJ45 port, Realtek RTL8111E chipset.
2.9 MIC_IN、LINE_OUT&AUDIO1
MIC_IN is Microphone input port,adopt general connector.
LINE_OUT is audio output port,adopt general connector.
AUDIO1 is 2×5,2.54mm expansion header,definition as below:
(1：If AUDIO1 have not connect with the AUDIO Cable in the front panel,have to catch Jumper
5-6、9-10。
(2:5、9pins are the output signal for front panel;6、10 pins are return signal.
2.10 SPK1（option）
Audio amplifier output interface,each channel support 6 w / 8 Ω horn。Output interface SPK1 are
defined as follows.

Mainboard Interface Description
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Remark：The front panel F_AUDIO highest priority,F_AUDIO device plugged into the front panel
,MIC_IN、LINE_OUT can not use。Splice LINE_OUT audio output device, SPK1 no output.

Mainboard Interface Description
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2.11 COM1、COM5
RSR232 pin header,adopt 2×5,2.54mm pin，Pin10 is for power 5V.
COM5 for options.
2.12 COM2、COM6
RSR232 pin header,adopt 2×5,2.54mm pin，Pin10 is for power 12V.
COM6 for options。
2.13 COM3、COM4（option）
RS485/R422 can use the same interface,adopt 2×3,2.54mm pin header,must comply
with the setting and type of COM3/COM4 in CMOS.

Mainboard Interface Description
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2.14 Parallel Port LPT
adopt 13×2,2.54mm pin header.，Pin26 is for power 5v.
2.15 CPU_FAN1、SYS_FAN1
FAN interface support maximum current 0.3 A,Definition as below:
2.16 SATA1、SATA2
Standard SATA device interface,support SATA2.0 and below.
SATA2 can be replace with a 90-degree SATA connector,adapt to a low-altitude structure.
SATA1 and negative M_SATA cannot be used at the same time.
2.17 SATA_P1、SATA_P2
2*SATA power interface,adopt CJT A2501WV-4P,A2501WV-2P device or other compatible
devices,definition as below:
SATA_P1 with 2 more pin than SATA_P2,bring in 12V power for the hard disk of commercial
computer.The 12V is coming from DC power.If there is a big voltage deviation with the DC
power,please do not choose a hard disk with voltage 12V/5V.

Mainboard Interface Description
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2.18 RTC1
RTC1 is RTC clear jumper line,adopt 1×2,2mm pin,definition as below:
RTC1
Function introduction
Close
Clear RTC CMOS
Open
default setting
2.19 BAT & BAT2
BAT1 is backup battery interface,Adopt CJT A1251WV-2P connector or other compatible
connector.BAT2 is a standard 2032 battery holder, BAT2 with batteries, you don't have to connect the
BAT1.
2.20 GPIO1
Spare GPIO interface,adopt 2×5,2mm pin,definition as below.Input and output characteristics of
GPIO can be through the BIOS revision. Please contact detailed FAE GPIO address entry.

Mainboard Interface Description
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2.21 FP1
Control panel interfaces,adopt 2×5,2mm pin,integrated HDD_LED、PWR_LED、on/off、reset
switch、SPEAKER function.Pin definition as below:
F_PANEL1
Pin Definition
1，3
Hard disk access lamp positive and negative signal pins.
2，4
Main power indicator light positive and negative signal pins.
5，7
Mainboard reset positive and negative signal pins.
6，8
Mainboard on/off positive and negative signal pins.
9，10
Spare buzzer connector.
2.22 JP5
AT starting mode jumper line.When you choose “Close” , the DC power plug,then the board
electrify at the same time.
JP5
Starting Mode Selection
Close
AT power starting mode
Open
ATX power starting mode
Remark：JP1 and FP1 combined to a 2×6,2mm pin header,the function of JP1 can be lead to the
case panel.
2.23 MPCIE1、MPCIE2
standard Mini-PCIE socketsuit for full-size card.Put the half-size card must connect extended
card fixed.
MPCIE1 equipped with SMI socket (SIM1), can insert SIM card.
2.24 SIM1
MPCIE1: SIM card slot.
2.25 U21、U47
U21 for patch SPI BIOS, U47 for plug-in SPI BIOS. U47 as option, the standard board can not
use.

Mainboard Interface Description
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3 Rear Side Interface Layout
Mainboard rear side layout as below:
3.1 M_SATA（option）
Support Mini-SATA SSD.This motherboard support most of the large company’s Mini-SATA
card.For detailed informations.please contact with our salesman and technician.
Remark:M_SATA and SATA1 cannot be used at the same time, they share a set of SATA signal.