Specifications

3–19
Additional Programming
Dual Interface Programming, continued
• Scanning “Plug and Play” bar codes (single scan
terminal selection bar codes – Section 2.2), or changing
the terminal type does not affect Dual Interface settings.
• RS–232 programmable selections are used by both the
primary and secondary interfaces. Changing an
RS–232 parameter (such as baud rate or parity), while
in primary
or secondary mode will affect both interfaces.
Dual Interface selection is not available if the 3400 is
programmed for an HP terminal with a Terminal I.D. of 20 or 79,
or for a WYSE terminal with a Terminal I.D. of 13–18.
Primary Interface only Selection allows you to temporarily
disable the dual interface selection, while retaining your
secondary interface setup in memory. If you want to
enable the secondary interface again, scan the Enable
Dual Interface Selection bar code.
❖ Primary Interface
only Selection ✽
❖ Enable Dual Interface Selection
3400–X3 and 3400–18 units do not support Dual Interface.