IBASE MB941 - Manual (Page 22)

INSTALLATIONS
18 MB941 User’s Manual
J3: Digital I/O Connector (4 in, 4 out)
J3 supports TTL levels and is used to control external devices requiring
ON/OFF circuitry.
Signal Name Pin # Pin # Signal Name
Ground 1 2 +5V
Out3 3 4 Out1
Out2 5 6 Out0
IN3 7 8 IN1
IN2 9 10 IN0
J4: COM3, COM4 Serial Port (DF11 Connector)
Signal Name Pin # Pin # Signal Name
DSR3 2 1 DCD3
RTS3 4 3 RXD3
CTS3 6 5 TXD3
RI3 8 7 DTR3
NC 10 9 Ground
DSR4 12 11 DCD4
RTS4 14 13 RXD4
CTS4 16 15 TXD4
RI4 18 17 DTR4
NC 20 19 Ground
J5: Compact Flash Socket
J6: Audio CD-In Connector
Pin # Signal Name
1 CD Audio L
2 Ground
3 Ground
4 CD Audio R