viii DS4308/DS4308P Digital Scanner Product Reference Guide
Target Video Frame Size ......................................................................................................... 5-24
Video View Finder Image Size ................................................................................................. 5-24
Chapter 6: USB Interface
Introduction .................................................................................................................................... 6-1
Connecting a USB Interface .......................................................................................................... 6-2
USB Parameter Defaults ............................................................................................................... 6-4
USB Host Parameters ................................................................................................................... 6-5
USB Device Type ..................................................................................................................... 6-5
Symbol Native API (SNAPI) Status Handshaking .................................................................... 6-7
USB Keystroke Delay .............................................................................................................. 6-7
USB CAPS Lock Override ....................................................................................................... 6-8
USB Ignore Unknown Characters ............................................................................................ 6-8
USB Convert Unknown to Code 39 ......................................................................................... 6-9
Emulate Keypad ....................................................................................................................... 6-9
Emulate Keypad with Leading Zero ......................................................................................... 6-10
Quick Keypad Emulation .......................................................................................................... 6-10
USB Keyboard FN 1 Substitution ............................................................................................. 6-11
Function Key Mapping ............................................................................................................. 6-11
Simulated Caps Lock ............................................................................................................... 6-12
Convert Case ........................................................................................................................... 6-12
USB Static CDC ....................................................................................................................... 6-13
Direct I/O Beep ........................................................................................................................ 6-13
TGCS (IBM) USB Beep Directive ............................................................................................ 6-14
TGCS (IBM) USB Bar Code Configuration Directive ............................................................... 6-14
USB Polling Interval ................................................................................................................. 6-15
USB Fast HID .......................................................................................................................... 6-16
TGCS (IBM) USB Specification Version .................................................................................. 6-17
ASCII Character Set for USB ......................................................................................................... 6-18
Chapter 7: SSI Interface
Introduction .................................................................................................................................... 7-1
Communications ............................................................................................................................ 7-1
SSI Transactions ........................................................................................................................... 7-3
General Data Transactions ...................................................................................................... 7-3
Transfer of Decode Data .......................................................................................................... 7-4
Communication Summary ............................................................................................................. 7-5
RTS/CTS Lines ........................................................................................................................ 7-5
ACK/NAK Option ...................................................................................................................... 7-5
Number of Data Bits ................................................................................................................. 7-5
Serial Response Time-out ....................................................................................................... 7-5
Retries ...................................................................................................................................... 7-5
Baud Rate, Stop Bits, Parity, Response Time-out, ACK/NAK Handshake .............................. 7-6
Errors ....................................................................................................................................... 7-6
Things to Remember When Using SSI Communication ................................................................ 7-6
Using Time Delay to Low Power Mode with SSI ........................................................................... 7-7
Encapsulation of RSM Commands/Responses over SSI .............................................................. 7-8
Command Structure ................................................................................................................. 7-8
Response Structure ................................................................................................................. 7-8