Service manual

2 Product Specifications
2-12 SAM4S ER-900/SPS-300 SERIES
2-5 Interface Specifications
2-5-4 USB Interface Specification
Item Description Remark
Transfer Type ● BULK
Data Signal
● Bi-Direction, Half-Duplex
● Differential Signal Pair (D+ / D-)
Data Format
● NRZI Format
● Zero Bit Stuffing after 6 Ones
Transceiver
● Differential Common Mode Range : 0.8 ~ 2.5[V]
● Differential Receive Sensitivity : 200[mV]
● Single End Receive Threshold : 0.8 ~ 2.5[V]
Speed ● 12Mbps
Power ● Supply 5V/500mA (For HID)
Cable & Connector
● Cable :5m/2m
● Connector :A type
Support Spec ● USB Device
2-5-5 USB Signal Description
Pin No Signal Name Color Function
SHELL Shield Drain Wire Frame GND
1 VBUS Red Host Power : DC5[V] / 500[mA]
2 D- White Differential Data Line
3 D+ Green Differential Data Line
4 GND Black Signal GND
2-5-6 USB Interface Cable
SPS-300
/ER-900 SIDE
USER SIDE