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The SBC-770 offers two serial ports, one RS-232 (CN16) and one
RS-232/422/485 (CN11). These ports allow you to connect them to
serial devices (mouse, printers, etc.).
PIN
COM2 1
(422TXD-/485DATA-)
2
(422TXD+/485DATA+)
3
(422RXD+)
4
(422RXD-)
5
This 100Base-Tx Ethernet connector CN17 is a standard RJ-45
connector.
The onboard Realtek RTL8139B fast Ethernet controller supports
10Mb/s and 100 Mb/s N-way auto-negotiation operation.
SIGNAL
DCDB
RXDB
TXDB
DTRB
GND
PIN
SIGNAL
6
DSRB
7
RTSB
8
CTSB
9
RIB
10
N.C.
Chapter 2 Installation 39
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