Laurel Electronics LAUREATE SERIES 2 SERIAL INPUT METER & REMOTE DISPLAY User Manual
Page 15
15
USB Board
No jumpers required.
Basic Ethernet Board
No jumpers needed.
RS232 Board
e - Normal operation.
f - Slave display to RS232 from another meter.
g - Pull-up resistor on RTS line.
Note: Board is shipped with jumpers e and g installed
RS485 Board, Full Duplex Operation *
b & d - Installed on last meter in long cable run.
RS485 Board, Half Duplex *
a & c - Installed for half duplex operation.
d - Installed on last meter in line with long cable runs.
RS485-Modbus Board, Full Duplex Operation *
b & e - Bias jumpers should be installed on 1 board.
a & d - Installed on last meter in long cable run.
RS485-Modbus Board, Half Duplex Operation *
b & e - bias jumpers installed on 1 board.
c & f - installed for half duplex operation.
a - installed on last meter in line with long cable runs.
Modbus
b
a
c
d
e
RJ45
RJ45
f
Ethernet-to-RS485 Converter Board
& USB-to-RS485 Converter Board
Full Duplex Operation
No jumpers for short cable runs.
Add b & d for long cable runs.
Half Duplex Operation
a + c for short cable runs.
Add d for long cable runs.
* Board shipped with no jumpers installed.
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