Acrosser AR-B1894 - Manual (Page 20)

2.3.16 Front Side Indicators (PANEL1) 2.3.17 24-pin ATX Power Connector (PWR1)
IDE1 Active LED
PIN No. Signal Description
1 +5V (Pull-up for HDD LED)
3 HDD active# (LED cathode terminal)
System Reset LED
PIN No. Signal Description
5 Reset
7 Ground
System Power On Switch LED
PIN No. Signal Description
6 Power button control signal
8 Ground
Description PIN No. PIN No. Description
+3.3V 13 1 +3.3V
-12V 14 2 +3.3V
Ground 15 3 Ground
PS_ON 16 4 +5V
Ground
17 5 Ground
Ground 18 6 +5V
Ground
19 7 Ground
-5V 20 8 PW_OK
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
2.3.18 Serial ATA 1/2 Connectors (SATA1,
SATA2)
2.3.19 Internal Speaker Connector (SPK1)
These SATA connectors support Serial ATA 150. Each
SATA connector can only support one serial ATA device.
Note : With most storage devices, there is a power cable
that you need attach to a power source (power
supply).
PIN No. Description
1 Ground
2 Ground
3
NC
4 +5V
2.3.20 Internal USB 3/4/5/6 Connectors (USB2, USB3)
PIN No. Description
1 5VSB
2 5VSB
3
DATA_3- / DATA_5-
4 DATA_3- / DATA_5+
5 DATA_4+ / DATA_6-
6 DATA_4+ / DATA_6+
7 Ground
8 Ground
9
NC
10 NC
Note :
1)
This mainboard provides 2 USB headers on the board
allowing for 4 additional USB ports. To make use of
these headers, you must attach a USB bracket/cable
with USB ports (some models will come packaged
with a USB 4-port bracket-cable). The optionally
packaged bracket will have two connectors that you
can connect to the headers (USB1, USB2). The other
end (bracket containing the USB ports) is attached to
the computer casing.
2) If you are using a USB 2.0 device with Windows
2000/XP, you will need to install the USB 2.0 driver
from the Microsoft® website. If you are using Service
pack 1 (or later) for Windows® XP, and using Service
pack4 (or later) for Windows® 2000, you will not have
to install the driver.