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Operation l l Chapter 3
19
3.4 Self Test
This configuration is for A50/A51 self test. Run terminal
emulation program to see if what you received is what you
typed.
In the graph, TA, TB, RA and RB could be either from RJ-45 or
Terminal Block. The settings of the switches for each A50 (or
A51) are as follows:
SW1 SW2 Pin1 Pin2 Pin3 Pin4
Half-duplex mode On TxD always enabled On Off X X
RxD always enabled X X On Off
A50/A51
RS-232
TA
TB
RB
RA
GND
DTE/
DCE
RS-422/485