Matrix-orbital LCD/VFD Legacy Uživatelský manuál stáhnout pdf (Strana 10)

2.1.4 Power through the DB-9 Connector

The display can be powered by pin 9 on the DB-9 connector. If power is applied here, power cannot be

applied to the other power connector. The input voltage for pin 9 can only be +5Vdc, even if the unit is wide

voltage.

WARNING Failure to follow these instructions will destroy the unit.

Solder a jumper as shown in the below image to use the DB-9 connector for power .

Figure 9: DB-9 Connector

2.1.5 RS-232 Communications

A standard DB-9F is provided for RS-232 communications. Power may also be supplied via this con-

nector if desired.

Figure 10: RS-232 and Power Connector

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Matrix-orbital LCD/VFD Legacy Uživatelský manuál Strana 10