Matrix Orbital LCD/VFD Legacy - Manual (Page 2)

Connecting LCD2021
Regular Voltage
Power is applied to the white or brown four pin SIP connector as follows:
Pin 1: +5V DC
Pin 2: =SCL (I²C Clock)
Pin 3: =SDA (I²C Data)
Pin 4: Gnd
If the sole data source is via the RS-232, the data input is via the DB-9 connector. Pins 2 and 3 are not used.
Wide Voltage Option
Power is applied to the white or brown four pin SIP as follows:
Pin 1: +8-15V DC
Pin 2: =SCL (I²C Clock)
Pin 3: =SDA (I²C Data)
Pin 4: Gnd
If the sole data source is via the RS-232, the data input is via the DB-9 connector. Pins 2 and 3 are not used.
(LCD2041)
W
ARNING
:
D
O NOT APPLY ANY POWER WITH REVERSED POLARITY
.
D
O NOT APPLY ANY VOLTAGE OTHER THAN THE SPECIFIED
V
OLTAGE
.
D
O NOT USE ANY CABLES OTHER THAN THE CABLES SUPPLIED BY
M
ATRIX
O
RBITAL
C
ORPORATION UNLESS YOU
ARE AWARE OF THE MODIFICATIONS REQUIRED
.
D
O NOT UNDER ANY CIRCUMSTANCES USE AN UNMODIFIED FLOPPY DRIVE POWER CABLE
.
2