Lanner LEC-3100 - Manual (Page 13)

11
Motherboard Information
Chapter 3
Embedded and Industrial Computing
COM port type adjustment switches (C3_SW1 /C3_SW2,
C4_SW1/C4_SW2, C5_SW1/C5_SW2, C6_SW1/C6_SW2,
C7_SW1/C7_SW2, C8_SW1/C8_SW2, C9_SW1/C9_SW2,
and C10_SW1/C10_SW2): These pairs of switches —
C3_SW1 /C3_SW2, C4_SW1/C4_SW2, C5_SW1/C5_SW2,
C6_SW1/C6_SW2, C7_SW1/C7_SW2, C8_SW1/C8_SW2,
C9_SW1/C9_SW2, and C10_SW1/C10_SW2— are used to
adjust the serial port type for COM3, COM4, COM5, and
COM6, COM7, COM8, COM9, and COM10 respectively Use
the table below as the switch adjustment information for
COM3 through COM10
Switch No.
Port Type
Switch 1
RS-232 1 OFF
2 ON
3 OFF
4 OFF
RS-422
RS-485 (4 Wires)
1 ON
2 OFF
3 OFF
4 OFF
RS-485 (2 Wires *)
1 ON
2 OFF
3 OFF
4 ON
Switch No.
Function
Switch II
RS-232 1 OFF
2 OFF
3 OFF
4 OFF
RS-422
RS-485 4 Wire
1 ON
2 ON
3 ON
4 OFF
RS-485 2 Wire with /
without Termination
(†,‡)
1 ON
2 ON
3 ON
4 ON OFF
Note:
* The RS-485 has automatic flow control by
hardware and the default is set by RTS
† The selector 4 of Switch 2 can only determine
the termination of RS-485 signal
‡ The RS-485 2-wire communication has a default
setting of termination disabled The termination
resistor has 120 OHM
4
3
2
1
OFF ON
COM1 Serial Type Selection Jumper (SC1T1, SC2T1,
SC3T1, SC4T1): This set of 4 jumpers are used to select
the serial type for COM1 port Use the table below as the
jumper selection information for COM1
Jumper
Serial Type
SCITI SC2T1 SC3T1 SC4T1
RS-232
(Default)
1-5
2-6
3-7
4-8
1-2 None None
RS-422 5-9
6-10
7-11
8-12
3-4 2-3 None
RS-485 5-9
6-10
7-11
8-12
5-6 2-3 None
Note: The RS-485 has automatic flow control by
hardware
COM1 Interface Type and LCM Selection Jumper (J4,
J6): Since the LCM and COM1 interface type shares the
same jumper reference, you also need to adjust Jumpers
J4 and J6 accordingly to select COM1 serial type Refer to
LCD Module (LCM1) on Page 13 for LCM pinout informa-
tion
Jumper
Interface Type
J4 J6
Serial Port (Rs-232
/422/485)
1-2 2-3
LCD Module 2-3 1-2
COM2 Serial Type Selection Jumper (SC1T2, SC2T2,
SC3T2, SC4T2): This set of 4 jumpers are used to select
the serial type for COM2 port Use the table below as the
jumper selection information for COM2
Jumper
Serial Type
SCIT2 SC2T2 SC3T2 SC4T2
RS-232
(Default)
1-5
2-6
3-7
4-8
1-2 None None
J4
1
2
3
J6
3 2 1