Specifications

Hardware Configuration
2–6
2.2 DC POWER
The pinout of the power connector J10 is identical with the power connectors on 5-1/4 inch floppy
disk drives. Refer to Table 2-3 for power connections, Table 2-4 for mating connector information,
and Figure 2-2 for typical connector wiring.
Caution
Be sure the power plug is wired correctly before applying
power to the board! See Figure 2-2.
Pin Signal Name Function
1 +12VDC +12VDC ±5% input
2, 3 Ground Ground return
4 +5VDC +5VDC ±5% input
Table 2-3 Power Connector (J10)
Connector Type Mating Connector
DISCRETE WIRE AMP HOUSING 1-480424-0
AMP PIN 60619-1
Table 2-4 J10 Mating Connector
Figure 2-2 Power Connector Wiring
2.2.1 Power Requirements
The Little Board/486i requires only +5VDC (±5%) for operation. The ±9 volts for the RS232 ports is
generated on-board from the +5VDC supply. An onboard +5V to +12V converter supplies power for