User guide
3.1.2 Ethernet Port (LAN1, LAN2)
COM1/COM2:
PIN Signal Name
1 DCD
2 TXD
3 RXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
COM2: RS232/RS422/RS485, Pins dene as below:
PIN RS232 (Default) RS422 RS485
1 DCD TX- DATA-
2 TXD TX+ DATA+
3 RXD RX+ NC
4 DTR RX- NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9 RI NC NC
BPC-7937 provides 2x RJ-45 Gigabit Ethernet Ports. Both sides of the
RJ-45 interface has one LED lamp. The yellow one indicates data trans-
fer status. The green one indicates network link status.
LILED
(GREEN)
FUNCTION ACTLED
(Yellow)
Function
ON 10/100/1000m Link Flash Data Transfer
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