User`s manual

NANO830/831 Intel
®
Atom
TM
D2550/N2600 Processor Nano-ITX Board
Board and Pin Assignments 17
2.4.5 Inverter Connector (CN5)
The CN5 is an 8-pin connector for inverter. We strongly recommend you to use the
matching DF13-8S-1.25C connector to avoid malfunction. If the LVDS brightness control
is set to voltage control mode (see section 2.3.5), the valid voltage range on pin 8 is
0~5V.
2.4.6 Front Panel Connector (CN6)
Power LED
Pin 1 connects anode(+) of LED and pin 5 con
nects cathode(-) of LED. The power LED
lights up when the system is powered on.
External Speaker and Internal Buzzer
Pin 2, 4, 6 and 8 connect the case-mounted speaker unit or internal buzzer. While
con
necting the CPU board to an internal buzzer, please set pin 2 and 4 closed; while
connecting to an external speaker, you need to set pins 2 and 4 opened and connect the
speaker cable to pin 8(+) and pin 2(-).
Power On/Off Button
Pin 9 and 10 connect the power button on front p
anel to the CPU board, which allows
users to turn on or off power supply.
Pin Signal
1 VBL1 (+12V level)
2 VBL1 (+12V level)
3 VBL2 (+5V level)
4 VBL_ENABLE
5 GND
6 GND
7 GND
8 VBL Brightness Control
Pin Signal
1 PWRLED+
2 EXT SPK-
3 N.C.
4 Buzzer
5 PWRLED-
6 N.C.
7 N.C.
8 EXT SPK+
9 PWRSW-
10 PWRSW+
11 HW RST-
12 HW RST+
13 HDDLED-
14 HDDLED+