NCR 7890, User Manual

Page: 74 / 217

Contents
User’s Guide iii
Version Number ................................................... 5-57
Parameter Shortcuts ............................................. 5-57
Sample Program ................................................... 5-58
Entering the Program ......................................... 5-59
Additional Bar Code Options .................................... 5-66
UPC Number System Character ........................ 5-66
Sample Program ................................................... 5-66
Entering the Program .......................................... 5-67
RS-232 Parameters - 1 ................................................. 5-68
Baud Rate .............................................................. 5-68
Parity ..................................................................... 5-68
Stop Bits and Character Length ......................... 5-68
Handshake ............................................................ 5-69
Parameter Shortcuts ............................................. 5-70
Sample Program ................................................... 5-70
Entering the Program ......................................... 5-71
RS-232 Parameters - 2 ................................................. 5-74
BCC Option .......................................................... 5-74
Interface Control ................................................... 5-74
Check Digit ........................................................... 5-75
VLI and Bit 6 EOM ............................................... 5-75
Retransmit on ACK/NAK Timer
Expiration ............................................................. 5-76
Parameter Shortcuts ............................................. 5-76
Sample Program ................................................... 5-77
Entering the Program ......................................... 5-78
RS-232 Prefix Byte ...................................................... 5-81
Prefix Byte ............................................................. 5-81
ASCII Code ........................................................... 5-81
Parameter Shortcuts ............................................. 5-81
Sample Program ................................................... 5-82
Entering the Program ......................................... 5-82
RS-232 Terminator Byte .............................................. 5-85
Terminator Byte .................................................... 5-85
ASCII Code ........................................................... 5-85