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DIN 2.1/485
isolated interface
RS 232c - RS 485
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TECHNICAL DATA user's manual

max. transfer rate 115 kBd
max. line length 1 200 m
transmitter control RTS  log 1
or RTS  log 0
or TxD (automatic control) 
receiver control inverse to transmitter control
or permanent
selectable terminator 120 W
galvanic separation 1 kV
overvoltage (soft) protection- line 600W/1ms
overvoltage (soft) protection - power supply 600W/1ms
connector RS232c screw
connector RS485 screw
power supply 9 to 30V  DC
optical indication power, RxD, TxD
consumption max. 1.1 W
dimension 36 x 90 x 58 mm