Table of Contents
Advertisement
3-4
Physical specification
Table 3.1 SCSI physical specification
Item
Driver/receiver
Connector
Cable
Max. cable length
Characteristic impedance
Cable type
Stub length
Signal
Terminator
level
Driver/receiver
Output characteristics:
Low-level output voltage
High-level output voltage
Input characteristics :
Low level input voltage
High level input voltage
Low level input current
High level input current
Minimum input hysteresis
Connector pin assignments for
signal lines
Specification
Single Ended
50 Contact Shielded Low Density
6 m
90
to 140
25 signal twisted pair
0.1 m (from mainline)
See Figure. 3.2
Open collector or three states driver
0.0 to 0.5 volts dc at 48mA sinking
(signal assertion)
2.5 to 5.25 volts dc (signal
negation)
0.0 to 0.8 volts dc
2.0 to 5.25 volts dc
–0.4 to 0.0mA at Vi=0.5 volts dc
0.0 to 0.1mA at Vi=2.7 volts dc
0.2 volts dc
See Table 3.2
M3099GX/GH OEM Manual
Advertisement
Table of Contents
