GLK240128-25-WB-VPT Matrix Orbital, GLK240128-25-WB-VPT Datasheet - Page 12

• Manufacturer Part Number: GLK240128-25-WB-VPT
• Description: LCD GRAPHIC DISPL 240X128 BLU WH
• Manufacturer: Matrix Orbital
• Series: GLK240128-25r

Specifications of GLK240128-25-WB-VPT

• Display Type: LCD - Color
• Display Mode: Transmissive
• Viewing Area: 114.00mm L x 64.00mm W
• Backlight: LED - Blue
• Dot Pixels: 240 x 128
• Interface: I²C, RS232, TTL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Dot Size: -
• Dot Pitch: -
• Other names: GLK240128-25 -WB-VPT; GLK240128-25 -WB-VPT

The GLK240128-25-422/GLT240128-422 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 of the receive and transmit signals to reduce degradation and increase
transmission lengths. Power can be transmitted at distance to a -VPT module or supplied from the
immediate vicinity to a regular unit. RS422 signals are available in a six pin connector as described in the
RS422 Connections section.
RS422 Connections
The GLK240128-25-422/GLT240128-422 provides a robust RS422 interface to the display line. For this
interface, a series of six wires are usually screwed into the RS422 terminal block provided. An alternate
header is also available to provide local power to a regular unit. To connect to your GLK240128-25-
422/GLT240128-422, adhere to the steps laid out below.
1. Set the Protocol Select jumpers.
2. Make the connections.
3. Create.
2.4 RS422 Module

a.
b.
c.
a.
RS422: The GLK240128-25-422/GLT240128-422 offers only RS422 protocol and does not
require any jumper changes.
Screw one wire; sized 16 to 30 on the American Wire Gauge, into each of the six terminal block
positions. When local power is supplied, a floppy cable may link to the alternate power header.
Connect the Vcc wire to the positive terminal of your power supply and the GND terminal to
the negative or ground lead to provide appropriate power as in Table 62.
Secure the A and B wires to your non-inverting and inverting output signals respectively, while
attaching the Z and Y wires to your inverting and non-inverting inputs.
In a PC environment, MOGD# or a terminal program 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 host controller. Instructions for these programs can be found below and the
simple C# example at
www.matrixorbital.ca/appnotes
is a great first programming reference.
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