Specifications

CHAPTER 3
Expansion
36 The PDS Expansion Card
Power for the Expansion Card 3
The PDS card uses power supplied through the 96-pin connector. The maximum current
available at each supply voltage is shown in Table 3-5. The card must not dissipate more
than 5 W total; for example, if the card uses the maximum current at –5 V and +12 V, it
must not use more than 500 mA from the +5 V supply.
▲
WARNING
Cards dissipating more than 5 watts may overheat and damage
the Macintosh LC 520 computer’s circuitry or cause it to become
inoperable. ▲
Table 3-5 Power available for the expansion card
Voltage Current
+5 1.0 A
–5 20 mA
+12 200 mA