11
(5)
COM1/2 (9-pin): Serial Port Headers
COM1
：
RS232/422/485 Serial Port Header;
COM2
：
RS232 Serial Port Header.
Pin 1
6
*Notice:
RS422, RS485 function is supported by COM1 header only, with compatible
COM cable for RS422 or RS 485 function. User also needs to go to BIOS to set
‘Transmission Mode Select’ for COM1 (refer to Page 20).
Pin NO.
RS232
*RS422
*RS485
Pin 1
DCD
TX-
DATA-
Pin 2
RXD
TX+
DATA+
Pin 3
TXD
RX+
NC
Pin 4
DTR
RX-
NC
Pin 5
GND
GND
GND
Pin 6
DSR
NC
NC
Pin 7
RTS
NC
NC
Pin 8
CTS
NC
NC
Pin 9
RI
NC
NC
COM1
COM2
Содержание JNP793D2-3160
Страница 10: ...5 1 4 Mechanical Drawing Unit mm...
