Specifications; System Characteristics - ZiLOG ZDS-1 Series User Manual

Specifications
SYSTEM CHARACTERISTICS
:
CPU
Standard Z80-CPU
System Clock
Crystal controlled at 2.5 MHz.
1 1
0
Megb';tes ROMIlK bytes static RAM dedicated to sys-
tem monitor; 60K bytes general purpose RAM.
AC Power Requirement
50160 Hz, 115 VAC, 200 Watts; optional 230 VAC
Power Supply
Environmental Characteristics
Operating Temperature: 0" to 50°C
Physical Characteristics
Single chassis, containing the disk drives, disk power sup-
plies, and system logic.
Approximate weight and dimensions:
Size: 19"W x 9"H x 15"D
Weight: 65 lbs.
Electrical
Integral Power Supplies provide all necessary voltages,
plus 4 amps of +5V (f5%) is available for user cards.
DISC DRIVE CHARACTERISTICS:
I
Capacity
Unformatted
Per Disk 3.2 megabits
I
Per Track
41.7 Kilobits
Transfer Rate 250 Kilobits/sec
Latency (average) 83 ms
Access Time
Track to Track
Average
Settling Time
Head Load Time
Rotational Speed 360 rpm
Recording Density 3200 bpi
(inside track)
Flux Density 6400 fci
Track Density
48 tpi
Physical Sectors 3 2
Index
Encoding Method
Physical Specifics tions
Environmental Limits
Ambient Temperature
=
50" to 1 0 0 ' ~ .
Relative Humidity = 20% to 80%
Maximum Wet Bulb = 7 8 " ~ .
AC Power Requirements
50160 Hz
f
0.5 Hz
100/115 VAC Installations
90 to 127 V .4A typical
2001230 VAC Installations
180 to 253 V .2A typical
DC Voltage Requirements
+24 VDC
f
5% 1.3A typical
+
5 VDC f5% 0.8A typical
-
5 VDC f5% .05A typical
(option -7 to -16 VDC)
Heat Dissipation
245 BTU/hr. typical