viii Symbol MS4404/MS4407 Integration GuideSSI Transactions .......................................................................................................... 8-3
General Data Transactions ..................................................................................... 8-3
Transfer of Decode Data ......................................................................................... 8-3
Communication Summary ............................................................................................ 8-5
RTS/CTS Lines ....................................................................................................... 8-5
ACK/NAK Option ..................................................................................................... 8-5
Number of Data Bits ................................................................................................ 8-5
Serial Response Time-out ...................................................................................... 8-5
Retries ..................................................................................................................... 8-6
Baud Rate, Stop Bits, Parity, Response Time-out, ACK/NAK Handshake ............. 8-6
Errors ...................................................................................................................... 8-6
Things to Remember When Using SSI Communication ............................................... 8-6
Selecting Time Delay to Low Power Mode using SSI ................................................... 8-7
Simple Serial Interface Default Parameters .................................................................. 8-8
SSI Host Parameters .................................................................................................... 8-10
Select SSI Host ....................................................................................................... 8-10
Baud Rate ............................................................................................................... 8-11
Parity ....................................................................................................................... 8-13
Check Parity ............................................................................................................ 8-14
Software Handshaking ............................................................................................ 8-14
Host RTS Line State ............................................................................................... 8-15
Decode Data Packet Format ................................................................................... 8-15
Stop Bit Select ........................................................................................................ 8-16
Host Serial Response Time-out .............................................................................. 8-17
Host Character Time-out ......................................................................................... 8-18
Multipacket Option .................................................................................................. 8-19
Event Reporting ............................................................................................................ 8-20
Decode Event ......................................................................................................... 8-20
Boot Up Event ......................................................................................................... 8-21
Parameter Event ..................................................................................................... 8-21
Chapter 9: Symbol MS4404 - RS-232 (Serial) Interface
Overview ....................................................................................................................... 9-1
Serial Parameter Defaults ............................................................................................. 9-2
Serial Host Parameters ................................................................................................. 9-3
Serial Host Types .................................................................................................... 9-5
Baud Rate ............................................................................................................... 9-6
Parity ....................................................................................................................... 9-8
Stop Bit Select ........................................................................................................ 9-8
Data Bits ................................................................................................................. 9-9
Check Receive Errors ............................................................................................. 9-9
Hardware Handshaking .......................................................................................... 9-10
Software Handshaking ............................................................................................ 9-12
Host Serial Response Time-out .............................................................................. 9-14
RTS Line State ........................................................................................................ 9-15
Beep on <BEL> ....................................................................................................... 9-15
Intercharacter Delay ................................................................................................ 9-16
Nixdorf Beep/LED Options ...................................................................................... 9-17
Ignore Unknown Characters ................................................................................... 9-17