Laurel Electronics LAUREATE SERIES Serial Comunications User Manual
Page 6
1.3
RS-232 AND RS-485 JUMPERS SETTINGS
RS232 Interface
Jumper g - installed for normal operation
Jumper h - installed when used as a slave display with
the RS232 output of another meter of the series.
Jumper j - provides a pull-up resistor on the RTS line.
Note: The board is shipped standard with jumpers g
and j installed
RS232
RS485
RS485 Interface
h
g
j
a
d
c
b
f
e
Note: Bias jumpers b and e must be
installed on board for proper operation. If
the outputs of more than 1 RS485 are
connected together, then one (AND ONLY
ONE) RS485 board must have the jumpers
installed.
Full Duplex
Jumpers b and e - bias jumpers installed on
one board
Jumpers a and d - are installed with long cable
runs to add 121 ohm termination resistors. If mul-
tiple meters are on same line, only the last meter
in the line should be jumpered.
Half Duplex
Jumpers b and e - bias jumpers installed on one board
Jumpers c and f - installed for half duplex operation
Jumper a - is installed with long cable runs to add 121 ohm
termination resistor. If multiple meters are on same line, only the
last meter in the line should be jumpered.
-5-
- QLS Quad Output 4-20 mA Current Loop - Datasheet (3 pages)
- QLS Quad Output 4-20 mA Current Loop - Manual (8 pages)
- LTS6 - Datasheet (3 pages)
- LTS6 - Manual (24 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Duty Cycle Input (4 pages)
- LT SERIES TRANSMITTERS PULSE INPUTS (40 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Position or Rate from Quadrature Encoders (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Average Time of Periodic Events (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Time of Single or Accumulated Events (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for AC Phase Angle & Power Factor (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Ratio (4 pages)
- LT: 4-20 mA & Serial Data Transmitter-Totalizer for 0-1 mA, 4-20 mA or 0-10V Process Signals (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Dual Channel Pulse Totalizer Input (4 pages)
- LT: Ethernet & 4-20 mA Output Transmitter for Frequency, Rate or Period Input (4 pages)
- LT SERIES TRANSMITTERS ANALOG INPUT (40 pages)
- LT: 4-20 mA Current Loop Transmitter for Resistance Input in Ohms (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Pt100, Cu10 and Ni120 RTD Input (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Thermocouple Types J, K, T, E, N, R, S (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Load Cell & Microvolt Signals (4 pages)
- LTE SERIES TRANSMITTERS ANALOG INPUT (40 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Strain Gauge & Potentiometer Input (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for Process Signals (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for AC RMS Voltage or Current Input (4 pages)
- LT: 4-20 mA & Serial Data Output Transmitter for DC Voltage or Current Signals (4 pages)
- LTE SERIES TRANSMITTERS PULSE INPUT (40 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Duty Cycle Input (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Position or Rate from Quadrature Encoders (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Average Time of Periodic Events (5 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Time of Single or Accumulated Events (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for AC Phase Angle & Power Factor (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Ratio (5 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter & Totalizer for 0-1 mA, 4-20 mA or 0-10V Signals (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Dual Channel Pulse Totalizer Input (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Frequency, Rate or Period Input (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Resistance in Ohms (4 pages)
- LTE: Ethernet & 4-20 mA Output RTD Transmitter for Pt100, Cu10 and Ni120 RTD Input (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Thermocouple Types J, K, T, E, N, R, S (4 pages)
- LTE: Ethernet & 4-20 mA Transmitter for Load Cell & Microvolt Signals (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for Process Signals (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for AC RMS Voltage or Current (4 pages)
- LTE: Ethernet & 4-20 mA Output Transmitter for DC Voltage or Current (4 pages)
- LTSE6 - Manual (25 pages)
- LTSE6 - Datasheet (3 pages)
- MAGNA Series Large Digit Displays (4 pages)
- M-35 Microminature Process Meter (2 pages)