Lanner LEC-7900 - Manual (Page 14)

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COM1: Internal COM1 ( D-SUB9) Connector
PIN NO. DESCRIPTION
1 Data Carrier Detect ( DCDA # )
2 Receive Data ( RXDA )
3 Transmit Data ( TXDA )
4 Data Terminal Ready ( DTRA # )
5 Ground ( GND )
6 Data Set Ready ( DSRA # )
7 Request To Send ( RTSA # )
8 Clear To Send ( CTSA # )
9 Ring Indicator ( RIA # )
SC2T1 : Select COM1 Type
COM2 TYPE SC1T2
SC1T1 SC1T3
RS-232 (Default) 1-2 1-5,2-6,3-7,4-8 5-6
RS-422 3-4 5-9,6-10,7-11,8-12
RS-485 5-6 5-9,6-10,7-11,8-12
J3: RS-232 Serial Port #2 Connector ( 2X5 Pin 2.54mm Header )
DESCRIPTION
PIN NO.
RS-232
1 Data Carrier Detect (DCDB #)
2 Data Set Ready (DSRB #)
3 Receive Data (RXDB)
4 Request To Send (RTSB #)
5 Transmit Data (TXDB)
6 Clear To Send (CTSB #)
7 Data Terminal Ready (DTRB #)
8 Ring Indicator (RIB #)
9 Ground
10 KEY
SATA 1 / 2 : SATA CONNECTOR
PIN NO. DESCRIPTION
1 GND
2 TX+
3 TX-
4 GND
5 RX-
6 RX+
7 GND
COM1
1 5
9 6
1
2
9
10
COM3