Disclaimer Avalue Technology Inc. reserves the right to make changes, without notice, to any product, including circuits and/or software described or contained in this manual in order to improve design and/or performance. Avalue Technology assumes no responsibility or liability for the...
Applications that are described in this manual are for illustration purposes only. Avalue Technology Inc. makes no representation or warranty that such application will be suitable for the specified use without further testing or modification.
A product returned without proof of the purchase date is not eligible for warranty service. Write the RMA number visibly on the outside of the package and ship it prepaid to your dealer. 4 EBM-QM87U Quick Installation Guide...
1.2 Packing List Before you begin installing your single board, please make sure that the following materials have been shipped: 1 x EBM-QM87U Intel® 4th Generation ULT Processor 5.25” Mini Module 1 x DVD-ROM or CD-ROM contains the followings: ...
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Auto Direction* RTS# Control 485TXP external OPEN* biasing resistor 485TXN external OPEN* biasing resistor In Serial Port 2 mode Auto Direction* RTS# Control 485TXP external * Default OPEN* biasing resistor 485TXN external OPEN* biasing resistor EBM-QM87U Quick Installation Guide 11...
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EBM-QM87U Quick Installation Guide 2.3.5 Serial port 1/ 2 pin9 signal select (JRI1/ JRI2) Ring* +12V JRI2 JRI1 * Default 2.3.6 LCD backlight brightness adjustment (JVR) * Default Signal DC MODE VBRIGHT * Default PWM MODE 12 EBM-QM87U Quick Installation Guide...
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For inverters with adjustable Backlight function, it is possible to control the LCD brightness through the VR signal controlled by JVR. Please see the JVR section for detailed circuitry information. 2.3.8 LCD Inverter connector (JBKL2) Signal +12V EBM-QM87U Quick Installation Guide 13...
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EBM-QM87U Quick Installation Guide 2.3.9 CPU fan connector (CPU_FAN) Signal FAN_PWM0 EC_TACH0 +12V 2.3.10 System fan connector (SYS_FAN) Signal FAN_PWM1 EC_TACH1 +12V 14 EBM-QM87U Quick Installation Guide...
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Quick Installation Guide 2.3.11 Serial port 2 connector (JCOM2) RS-232 Mode Signal Signal NRXDB# NDCDB NDTRB# NTXDB NDSRB# NCTSB# NRTSB# NRIB# RS-422 Mode Signal Signal 485TXP 485TXN 485RXN 485RXP RS-485 Mode Signal PIN PIN Signal 485TXP 485TXN EBM-QM87U Quick Installation Guide 15...
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Serial port 3/ 4/ 5/ 6 connector (COM3/ COM4/ COM5/ COM6) Signal PIN PIN Signal JCOM6 COM_RI# JCOM5 COM_RTS# COM_CTS# JCOM4 COM_DSR# JCOM3 COM_TXD COM_DTR# COM_DCD# COM_RXD 2.3.13 LED indicator connector (JLED) Signal PIN PIN Signal PWR_LED# +5VSB HDD_LED# LAN1_ACT# +V3P3M LAN2_ACT# +V3P3A PWR_BTN 16 EBM-QM87U Quick Installation Guide...
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Quick Installation Guide 2.3.14 General purpose I/O connector (JDIO) Signal PIN PIN Signal SMB_CLK_VCC 18 17 SMB_DATA_VCC 2.3.15 Touch panel connector (JTOUCH) Signal THX- THX+ THPROBE_R THY+ THY- EBM-QM87U Quick Installation Guide 17...
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EBM-QM87U Quick Installation Guide 2.3.16 SATA Power connector (SPWR) Signal 2.3.17 Power connector (PWR1) Signal Signal +V_DCIN +V_DCIN 18 EBM-QM87U Quick Installation Guide...
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