Appendix C Universal Serial Bus (Usb) - Oki OKIPAGE 14i Maintenance Manual

Appendix C Universal Serial Bus (USB)
Universal Serial Bus Specification Revision 1.1 compliance.
1)
2)
3)
4)
5)
6)
7)
41356801TH Rev.1
Connector
• Printer Side : "B" Receptacle (Upstream Input to the USB Device)
• Cable Side : Series "B" Plug
Cable
• Cable Length : Max 5m (A cable must be met USB Spec Rev 1.1 for normal
operation)
Note: Cable is not provided.
Table of USB I / F signals
Contact Signal Name
Number
1 Vbus
2
3
4 GND
Shell Shield
Connector pin arrangement
2 1
3 4
Mode & Class of Device
• Full - speed Driver
• Self - powered Device
Data Signaling Rate
• Full - speed function - 12Mb/s
Interface circuit
Full-speed
Buffer
Rs
TxD+
Rs
TxD-
Rs = 22 Ω
D -
D +
3.3 V
1.5 kΩ
144 /