Power Computing PowerTower Pro User Manual page 179

One Apple Desktop Bus (ADB) port for up to three input devices daisy-chained through
a low-speed, synchronous serial bus
Six PCI bus expansion card slots (one used for video card)
Two RS-232/RS-422 serial GeoPort-compatible ports, 230.4 Kbits per second
maximum (up to 2.048 Mbits per second clocked externally)
Built-in Ethernet AAUI and 10BaseT connectors
Sound output port for stereo CD audio and computer-generated sound
Powered sound input port for stereo sound input
AC line input
Line voltage: 100Ð240 volts AC, RMS single phase (not auto-ranging)
Frequency: 50Ð60 Hz
Power 460 Watts
DC power
300 watts maximum
Current type
+3.3 V
+5 V
Ð5 V
+12 V
-12 V
Clock and calendar
CMOS circuitry with long-life 3.6-volt lithium battery (1/2 AA cell)
For Technical Support, Call 1-800-708-6227
Appendix B, Technical Information
Total
14 A
30 A
0.6 A
12 A
0.5 A
PowerTower Pro UserÕs Guide
155