Fujitsu M3097G Benutzerhandbuch
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(2) Physical
specifications
Table 4.1 SCSI physical specifications
Item
Specification
Driver/Receiver
Connector
Single>ended
50 Contact Shielded Low Density
Cable
Max. cable length
Characteristic
impedance
impedance
Cable type
Stub wire
Signal
level
level
Terminator
Driver/receiver
Output
characteristics
characteristics
Input
characteristics
characteristics
Connector pin assignments
for signal lines
for signal lines
6 m
132 ]
25 signal twisted pair
e 0. 1 mm (from main cable in scanner to internal
wiring)
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 e 0. 5 V)
High level (false) = 2. 5 to 5. 25 VDC
Output current = 48 mA (corresponding output
voltage e 0. 5 V)
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. 4 V input voltage)
Input hysteresis = 0. 2 VDC min.
High level (false) = 2. 0 to 5. 25 VDC
Input load = -0. 4 mA max. (at 0. 4 V input voltage)
Input hysteresis = 0. 2 VDC min.
See (4).
(3)
Termination
+5 V
-signal
220 ]
330 ]
4 $ 4