XtendLan TCD-N2600-C2G2-2, Руководство пользователя

Страница: 21 / 82

18

Switch and Jumper Setting
The Serial port is designed for multiple proposes, Use SW2 selects RS-232, RS-422 or
RS-485 of COM1, use SW1, JP4 and JP5 selects RS-232, RS-422, RS-485 or CAN Bus of
COM2 connector. SW4 is selects RS485 terminator resistor, JP3 and JP6 is to select
power source with RI# pin of DB9. JP8 is used to select 3VSB/3.3V voltage with PCIe
Mini Card module (See a PCIe Mini Card module specification.), JP3 is used to
clear CMOS data, JP7 is the CAN bus termination jumper.

SW1, SW2, SW4, JP3, JP4, JP5 and JP6: COM1 & COM2 RS232/422/485 Selection
SW1/SW2
ON OFF
2
1
JP4
2
6
JP5
2
6
1
5
1 5
Factory Preset: BIOS Cntl.
SW2-COM1/SW1-COM2
Factory Preset: COM2
for RS232/RS422/RS485
SW1/2-1 SW1/2-2 COM1/2
Off Off RS-232
On Off RS-485
Off On RS-422
On On BIOS Cntl.

a. SW4-1 (COM1), SW4-2 (COM2): RS-485 Terminator Setting
SW4
ON ON
1 2
OFF
1 2
OFF
RS-485
Terminator Disabled
Factory Preset
RS-485
Terminator Enabled
H_JP8
H_JP3 H_JP5
H_JP7
H_JP6
H_JP4
H_J3
H_SW4