DD2050
1-34
Provide a jumper between pin 2 and pin 5 to connect the termination
resistor; this operation must be performed on the first and last of the
devices connected together.
ATTENTION
Max. conditions of usage under RS485 standard:
Maximum transmission distance = 1200 m
Maximum voltage at ends = ± 7V
It is advisable to use a shielded cable of the "twisted pair" type for connections to external
devices. Remember to connect the shield to the metal part of the shell of the 9-pin
connector.
Maximum number of terminals that can be connected = 16