42640901TH Rev.1 83 /
Oki Data CONFIDENTIAL
APPENDIX B Universal Serial Bus (USB)
Universal Serial Bus Specification Revision 2.0 full speed compliance.
1) Connector
• Printer Side : “B” Receptacle (Upstream Input to the USB Device)
• Cable Side : Series “B” Plug
2) Cable
• Cable Length : Max 5m (A cable must be met USB Spec Rev 1.1 for normal operation)
Note:
Cable is not provided.
3) Table of USB I / F signals
Contact Signal Name
Number
1 Vbus
2D -
3D +
4 GND
Shell Shield
4) Connector pin arrangement
2
34
1
5) Mode & Class of Device
• Full - speed Driver
• Self - powered Device
6) Data Signaling Rate
• Full - speed function - 12Mb/s
7) Interface circuit
3.3 V
1.5 k
Ω
Rs = 22
Ω
TxD+
Rs
Full-speed
Buffer
Rs
TxD-
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