Matrix Orbital LCD0821 Legacy - Manual (Page 7)

LCD0821 rev 2 7
2. Connections and Configuration
2.1 Connector Pinout
Refer to the diagram below for this chapter.
Figure 2-1 Electrical Connections
The LCD0821 has four connectors:
Connector Function
2 pin header General purpose output (see section 2.2)
4 pin Power and I 2 C communications (see section 2.1.1)
3 pin header RS-232/power (see section 2.1.3)
Jumpers Sets RS232 speed and I2C address
2.1.1 Power and I
2
C Connections
Power is applied via pins +5V OR Vin as shown in Figure 2-1. Power requirement for standard units is +5
VDC ±0.25V (units with the wide voltage range option require 8 – 15 VDC). Power may also be supplied
via the RS-232 connector as described in section 2.1.3.
Warning:
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 you are aware of the modifications required.
Do not apply more than one type of power connector at one time