Altos Computer Systems Altos 486 — Altos 486 System Reference Manual – Service & Technical Guide PDF

MICROPROCESSOR> Intel - ae186 Address/Data Bus (bits) Processor Speed (Megahertz) DMA Channels Programmable Interrupt Controller Programmable l6-bit Timers 1 16 a 2 1 3 Zilog - zae Address Bus (bits) Data Bus (bi ts) Processor Speed (Megahertz) 1 16 8 4 MEMORY Standard Maximum 512 Kbytes 896 KBytes OTHER SYSTEM SPECIFICATIONS Electrostatic Discharge Dissipation 10 KV (with no hard errors) 3eePf Agency Approvals FCC, Class A, UL, CSA Designed to meet VDE, lEe PCMER SUPPLY SPECIFICATIONS o Output Voltages and Maximum Rated Loads Output 1: +5.ev at 15.0 A Output 2: +12 V at 4.e A (surging to 7 A for Ie sec to start disk) Output 3:

-12 V at e.5 A Continuous Output Power is 153 watts 0 Overall Regulation (from all causes) Output 1: ± 3% max at 75% load ± 25% load change Output 2: ± 5% max at 6e% load ± 40% load change Output 3: ± 5% max at 6e% load ± 4e% load change 0 Noise and Ripple Output 1: lee mV p-p max Output 2: lee mV p-p max Output 3: 2e0 mV p-p max 2~3