ASTECH LDM41A - Table 2: Pin Assignment Connector and Interface Cable

Electrical Connection LDM41A and LDM42A Manual
Page 18 ASTECH GmbH
Table 2 : Pin assignment connector and interface cable
Pin
Color
Assignment
Function RS232
Function RS422
A
Green
TxD / RX+
RS232
send data
RS422 receive data+
B
Yellow
RxD / RX-
RS232 receive data
RS422 receive data-
C
13
Brown
TRIG
External trigger input
External trigger input
D
Red
IOUT
Analog output
Analog output
E
Black
TX-
RS422 Send data -
RS422 Send data -
F
Violet
TX+
RS422 Send data +
RS422 Send data +
G
14
orange
VCC
Supply voltage
Supply voltage
H
White
ALARM
Digital switching
output
Digital switching
output
J
Grey
GND
Ground potential
Ground potential
L
blue
GND
Ground potential
Ground potential
GND wires are connected to an internal collective ground point. They provide
the reference potential for all voltage values quoted below.
Caution: If input signals are applied to an output port, this may
damage the LDM41A and LDM42A!
Do not connect the current output IOUT (red) to the power supply
(10 ... 30 V). This will destroy the interface board!
For data communication via RS232, you are recommended to use cable 4
(grey, GND) for signal ground and cable 7 (blue, GND) for supply ground!
The limiting values of voltages, load rates and logic levels are in accordance
with RS232 and RS232 standard requirements.
All outputs are protected against steady short-circuit currents.
13
Trigger function is not available for devices with internal heating (LDM41A-h and LDM42A-h)
14
In case of interface cable with length of 10m the color of pin G, VCC can also be pink.