DATUM ELECTRONICS
M425 TORQUE TRANSDUCER HANDBOOK
7
ELECTRICAL
CONNECTION
CABLE AND SOCKET
CONNECTORS WIRING GUIDE
The M425 Transducer is supplied with a standard 3 metre
signal cable. This cable is terminated with a standard
9-way D connector to interface to any of the Datum
Electronics Signal Interfaces or Indicators.
The connections within this cable are detailed below should
you wish to connect the M425 Transducer directly into your
own instrumentation and software.
The default signal output from the Transducer is RS485 Serial
Data (see protocol section for data output details on page 11).
We have also provided the Triad 4-way plug wiring
arrangement in diagram No. 10 below for the Transducer end
of the cable. On some occasions a cable may need to be
assembled after laying through tight bulkhead access which
may require the removal of the connectors.
The maximum cable length for the M425 Transducer is
normally 200 metres. For special applications with the right
cable conditions this can increase to 500 metres depending
on the sample rate and baud rate.
The data cable from the M425 Transducer to an interface
must meet the following specification:
4 core wire, braided,
screened, 7/02mm PVC Sheathed cable or equivalent.
The M425 Transducer current consumption is less than
250mA with a 12Vdc supply. The M425 Transducer complete
with its Universal Signal Interface will consume below 450mA.
Note: alignment
notch at top of
contact carrier
Max Cable length = 200m
Pins out
Pins solder side
Shielding
Multi-core
cable
To M425 Torque
Transducer
Pins solder side
Solder
shielding
to tab
Shielding
To Universal
Interface
Male plug connector
Triad T01-550-P04
Female 9 PIN
D Connector RS485
Triad 4-way Plug T01-550-P04 wiring guide
9-way D connector RS485 wiring guide
Diagram No. 9
Pin Out
Function
Cable Colour
Pin 1
+12Vdc supply
to Transducer
RED
Pin 2
Supply ground
BLUE
Pin 3
RS485 A: -ve data
YELLOW
Pin 4
RS485 B: +ve data
RS232 TX/RX (option)
GREEN
PIN numbering viewed
from solder/cable side
of the connector
Pin Out
Function
Cable Colour
Pin 1
RS485 A: -ve data
YELLOW
Pin 2
RS485 B: +ve data
RS232 TX/RX (option)
GREEN
Pin 5
Supply ground
BLUE
Pin 9
+12Vdc supply
to Transducer
RED
PIN numbering viewed
from solder/cable side
of the connector
Diagram No. 10
Diagram No. 11
5
3 1
4 2
2
9
1
5
3 1
4 2
2
9
1
Transducer signal cable wiring guide