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Modem_In Header (LMDN1)
Port LMDN1 can be used to connect a modem audio line to MS51/MS51N
mainboard. Typically, you would use this connector when running the voice
mail software on your system for audio input and output.
Pins Assignment:
1=MONO_OUT
2=GROUND
3=GROUND
4=PHONE_IN
IR Header (LSIR1)
If you have an Infrared device, this mainboard can implement IR transfer
function. To enable the IR transfer function, follow these steps:
Pins Assignment:
1=VCC
2=KEY
3=IRRX
4=GND
5=IRTX
Note:
Before connect your IR device, please be sure each IR on board pin
allocation is matchable with the pin of the IR device. Otherwise,
incorrect IR connection may do damage to your IR device.
Step 1.
Attach the 5-pin infrared device cable to LSIR1.
(Refer to the above diagram for IR pin assignment.)
Step 2.
This mainboard supports Normal, IrDA, ASKIR, or SCR transfer
modes.
E5
1 2 3 4 5
E6
4 3 2 1
1
LS
IR
1
1
L MD N 1
