Connection of transmitters – Laurel Electronics Ethernet Node Configuration for Series 2 Digital Panel Meters, Counters, Timers, Transmitters and Ethernet-to-Serial Device Servers User Manual
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4. Connection of Transmitters
4.1 LTE Ethernet Transmitters
P1 Power input
3 Power GND
2 AC neut or -DC
1 AC high or +DC
P4 Analog
output (standard)
P3 Solid state
relays (normally
open, standard)
P5 Signal
input &
excitation
output
Ana out -
1
Ana out +
2
Alarm 2 1
Alarm 2 2
Aalrm 1 3
Alarm 1 4
Signal
conditioner
board
RJ45
P2 Ethernet
E2
b
a
d
c
a
b
c
E3
E1
E4
a
b
Reset
LTE Ethernet transmitters feature an RJ45 Ethernet connector, which allows the transmitter to be
connected directly to a computer, router, switch or hub via an Ethernet cable. The RJ45 connector
replaces the screws terminals that would otherwise be provided for RS485 or RS232 data I/O. An
isolated 4-20 mA, 0-20 mA or 0-10V analog output is standard, as are dual 120 mA solid state
relays for alarm or control. Signal conditioner boards are available for all popular industrial analog,
frequency and pulse-type transducer signals.
To reset the transmitter (same as power-up), press the Reset button.
To reset communications to 9600 baud, command mode, Custom ASCII protocol, and Address 1,
place a jumper at E1 and power up the transmitter.
Analog Output
Jumpers
Current (0-20 mA)
E2 a + d
Voltage (0-10V)
E2 b + c
Excitation Output*
Jumpers
5V, 100 mA
E3 a + c; E4 a
10V, 120 mA
E3 a + c; E4 b
24V, 50 mA
E3 b, E4 none
* Attempting to draw more than the rated transducer excitation output current will shut down the
output.