Physical Specification; Termination - Fujitsu Scan Partner 300C Instruction Manual

4.1.2 Physical Specification

Item
Driver/Receiver
Connector
Cable Max. cable length
Characteristic impedance
Cable type
Stub wire
Signal level Terminator
Driver/receiver
Output characteristics
Input characteristics
Connector pin assignments for lines

4.1.3 Termination

Table 4-1
SCSI physical specifications
Specifications
Single-ended
50 Contact Shielded Low Density
6 m
132 Ω
25 signal twisted pair
≤ 0.1 mm (from main cable in scanner to internal wiring)
See the figure under (3).
Open collector or three-state driver
Low level (true) = 0.0 to 0.5 VDC High Level (false)=2.5 to 5.25 VDC
Output current = 48 mA (corresponding output voltage ≤ 0.5V)
Low level (true) = 0.0 to 0.8 VDC High level (false) = 2.0 to 5.25
VDC Input load = -0.4 mA max. (at 0.4V input voltage Input
hysteresis = 0.2 VDC min.
See (4).
4-4
220Ω
330Ω