EXTMUSB3FT Matrix Orbital, EXTMUSB3FT Datasheet - Page 10

• Manufacturer Part Number: EXTMUSB3FT
• Description: DISPLAY
• Manufacturer: Matrix Orbital

Specifications of EXTMUSB3FT

• Accessory Type: USB Cable
• For Use With/related Products: GTT-480270A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 635-1045

2.4 RS422 Module
The GTT480272A-422 provides an industrial alternative to the standard RS232 communication protocol.
Rather than single receive and transmit lines, the RS422 model uses a differential pair for each receive
and transmit signals to reduce degradation and increase transmission lengths. The RS422 signals are
available in a six pin connector as seen in Table 4.
2.4.1
To interface to the robust GTT480272A-422, a series of six wires are usually screwed into the RS422
terminal block provided. This setup will supply power to your display and provide a simple
communication scheme. To connect in RS422 mode, adhere to the steps below.
1. Set the Protocol Select jumpers.
2. Make the connections.
3. Create.
RS422 Connections

a. Screw one wire; sized 16 to 30 on the American Wire Gauge, into each of the six terminal
b. Connect the Vcc wire to the positive terminal of your power supply and the GND terminal to
c. Secure the A and B wires to your non-inverting and inverting output signals respectively,

RS422: The GTT480272A-422 offers only RS422 protocol and does not require any jumper
changes. Model specific hardware prevents this unit from operating in any other protocol,
and does not allow other models to operate in the RS422 protocol.
block positions.
the negative or ground lead to provide appropriate power as in Table 9.
while attaching the Z and Y wires to your inverting and non-inverting inputs.
In a PC environment, GTT Tools will serve to get you started. In addition, a variety of
application notes are available online in a number of different languages to aid in the
development of a display controller. Instructions for the program can be found below and
the examples linked in the Application Notes are great code references.
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