Usb Interface - Samsung SRP-350PG - SRP 350 B/W Direct Thermal Printer Service Manual

2-5 Interface Specifications
2-5-3-(c) IEEE 1284 I/F Cable

2-5-4 USB Interface

2-5-4-(a) Specification
Item
Transfer Type
Data Signal
Data Format
Transceiver
Speed
Power
Cable & Connector
Other
Samsung Electro-Mechanics
HOST
SIDE
Figure 2-9 IEEE1284 Cable
BULK
Bi-direction, Half-Duplex
Differential Signal Pair (D+ / D-)
NRZI Format
Zero Bit Stuffing after 6 ones
Differential Receive Sensitivity
Differential Common Mode Range : 0.8 ~ 2.5[V]
Single-End Receiver Threshold
12 Mbps
Self-Powered
Cable : 5m / 2m
Connector : B Type
Support USB SPEC V1.1
Table2-17 USB Specification
Description
: 200[mV]
: 0.8 ~ 2.0[V]
2 Product Specifications
PRINTER Centronics 36P
SIDE
Remark
2-15