Modem Connector: Jmc1 - MSI MS-6390 User Manual

Chapter 2

Modem Connector: JMC1

This connector is connected to a modem module. The modem module
functions in the same way as a modem, which allows users to connect to the
internet via the telephone line.
PIN
1
2
3
4
5
6
7
8
9
10
1 1
12
2
1
JMC1
Modem Module
Connect to a telephone set
JMC1 Pin Definition
SIGNAL
BIT_CLK (to LAN controller)
SYNC (from LAN controller)
RESET (from LAN controller)
SDATA_OUT (from LAN controller)
SDATA_IN (to LAN controller)
Ground (from M/B)
Ground (from M/B)
Aout (to M/B)
+3.3Vaux (from M/B)
Ground (from M/B)
+3.3Vaux (from M/B)
PIN REMOVE
12
11
DESCRIPTION
Serial port bit clock output/input
Frame Sync input
Reset input (active low)
Serial port data input
Serial port data output
Connect to System Digital Ground
Connect to System Digital Ground
Analog speaker output
+3.3V Vaux power input
Connect to System Digital Ground
+3.3V Vaux power input
PIN REMOVE
Connect to a telephone line from the wall
2-18