Reverse channel, Usb interface, Optional usb cable – Epson 2000 User Manual
Page 217

Product Specifications
B-13
R4C428_V2
long.bk
Rev_C
A5 size
SPEC.FM
1/14/00
Pass 2
R
Proof Sign-off:
tantoname
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leadername
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Reverse channel
USB interface
The EPSON Stylus Scan’s built-in USB interface is based on the
standards specified in the Universal Serial Bus Specifications
Revision 1.0 and the Universal Serial Bus Device Class Definition
for Printing Devices Version 1.0. This interface has the following
characteristics.
Optional USB Cable
The specifications below apply to the optional USB cable
(C83623✽).
Transmission mode
IEEE-1284 Nibble mode,
IEEE-1284 ECP mode
Adaptable
connector
57-30360 Amphenol connector or equivalent
Synchronization
See the IEEE-1284 specification
Handshaking
See the IEEE-1284 specification
Signal level
IEEE-1284 Level 1 device
Data transmission
timing
See the IEEE-1284 specification
Standard
Based on Universal Serial Bus Specifications
Revision 1.0, Universal Serial Bus Device Class
Definition for Printing Devices Version 1.0
Bit rate
12 Mbps (full speed device)
Data encoding
NRZI
Adaptable
connector
USB Series B
Recommended
cable length
2 meters