RJ-901C/RJ-900C 　 Maintenance Manual 3 Specifications
3-7
3.3 Interface Specifications
This section explains the specification of the interfaces supported for this plotter.
3.3.1 USB Interface Specifications
Item Specifications
Interface Universal Serial Bus Specifications Revision 2.0
Universal Serial Bus Device Class Definition for Plotting Devices Version 1.1
Data format NRZI
Transmission speed 11Mbps (USB1.1) / 480Mbps (USB2.0)
Applicable connector USB Series B
Allowable cable length 3 m
Pin number Signal name Input/output Function
1
VCC - Cable power supply
2
- Data Bidirectional Data
3
+ Data Bidirectional Data
4
Ground - Cable ground
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