LCD2041-R Matrix Orbital, LCD2041-R Datasheet - Page 11

• Manufacturer Part Number: LCD2041-R
• Description: LCD Character Display Modules Black Background Red Text
• Manufacturer: Matrix Orbital

2.2 RS-232 Header
2.3 Manual Override
particularly helpful if the display module has been set to an unknown baud rate or I
you are no longer able to communicate with it. If you wish to return the module to its default settings you
must:
Matrix Orbital
1. Power off the display module.
2. Place a Jumper on the Manual Override pins.
3. Power up the display module.
4. The display module is now set to its default values listed below in
5. Edit and save settings.
The RS-232 Header provides an alternate serial transmission connector.
The Manual Override is provided to allow the LCD0821 to be reset to factory defaults. This can be
NOTE This header is for RS-232 transmission only.
WARNINGS
Backlight Off Supply
Backlight On Supply
• Do not apply any power with reversed polarization.
• Do not apply any voltage other than the specified voltage.
Supply Voltage
Figure 12: Power Connector and Pin out
Table 1: Power Requirements
LCD0821
+5Vdc ±0.25V
Pin
Pin
Pin
Standard
1
2
3
105 mA typical
GND
Rx
PWR
30 mA
(See table 1)
+9V to +15V
table 2
-V
.
2
C Slave Address and
7