4-port RS-232 module
Ports: 4 serial ports
128 byte FIFO
Comm. speed up to 115.2 kBit/s
Data signals: T x D, R x D, RTS, CTS, DTR, DSR, DCD, RI, GND
connection: RJ-45
LED display: TX, RX
ADAM-5510, ADAM-5511 only