Matrix Orbital LCD2041 Legacy - Manual (Page 6)

Figure 2: Electrical Connections
The display has three connectors;
Table 1: Connectors & Functions
Connector Function
2 pin General purpose output
4 pin Power and I 2 C communication
DB-9F RS-232/power
2.1.1 Power Connection
Power is applied via pins 1 and 4. Power requirement for standard units is +5 VDC ±0.25V . Units with
the wide voltage range option require 8 - 15 VDC.
WARNINGS
• Do not apply any power with reversed polarization. Do not apply
any voltage other than the specified voltage. Do not use any cables
other than the cables supplied by Matrix Orbital, unless aware of
the modifications required. Do not apply voltage to the DB-9 con-
nector AND power connector Do not apply more than +5Vdc to
pin #9 on the DB-9 connector.
Matrix Orbital LCD2041 3