Motherboard Internal Connectors - JETWAY MM10-H6100 Technical Manual

COM1 (9-pin Block): Serial Port
The pin assignment for RS232/422/485 is listed as follows:
1 2 3 4 5
6 7 8 9
*Note: COM1 support RS232/422/485 function.

2-2-2 Motherboard Internal Connectors

(1) ATXPWR1 (24-pin block): Main Power Connector
ATX Power Supply connector: This is a new defined 24-pins connector that usually
comes with ATX case. The ATX Power Supply allows using soft power on
momentary switch that connect from the front panel switch to 2-pins Power On
jumper pole on the motherboard. When the power switch on the back of the ATX
power supply turned on, the full power will not come into the system board until the
front panel switch is momentarily pressed. Press this switch again will turn off the
power to the system board.
** We recommend that you use an ATX 12V Specification 2.0-compliant power
supply unit (PSU) with a minimum of 350W power rating. This type has 24-pin and
4-pin power plugs.
** If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the
20-pin power plug can provide at least 15A on +12V and the power supply unit has a
minimum power rating of 350W. The system may become unstable or may not boot
up if the power is inadequate.
** If you are using a 20-pin power plug, please refer to Figure1 for power supply
connection. Power plug form power supply and power connectors from motherboard
both adopt key design to avoid mistake installation. You can insert the power plug
BLUE: Line-in Connector
Audio Connectors
GREEN: Line-out Connector
PINK: MIC Connector
Pin1
RS232 Mode
(MM21-Q4700/Q4702 Series
& MM21-W4800/W4802 Series)
Pin1
Pin1
RS422 Mode
(MM21-Q4700/Q4702 Series)
11
RS485 Mode
(MM21-Q4700/Q4702 Series)