Appendix C Universal Serial Bus (Usb) - Olivetti PG L22 Special Service Manual

APPENDIX C Universal Serial Bus (USB)
Universal Serial Bus Specification Revision 2.0 full speed compliance.
1) Connector
• Printer Side
• Cable Side
2) Cable
• Cable Length
Note: Cable is not provided.
3) Table of USB I / F signals
4) Connector pin arrangement
5) Mode & Class of Device
• Full - speed Driver
• Self - powered Device
6) Data Signaling Rate
• Full - speed function - 12Mb/s
7) Interface circuit
Y103920-3
: "B" Receptacle (Upstream Input to the USB Device)
: Series "B" Plug
: Max 5m (A cable must be met USB Spec Rev 1.1 for normal operation)
Contact Signal Name
Number
1 Vbus
2 D -
3 D +
4 GND
Shell Shield
2 1
3 4
Full-speed
Buffer
Rs
TxD+
Rs
TxD-
Rs = 22 Ω
Service Manual
3.3 V
1.5 kΩ
105