ScannerSupportChapter —6
216 700Series Color MobileComputer User’s Manual
ScannerCabling
A null modemcable is requi redf or the WelchAllyn 1470 Imager to com-
municate with the 700 Color Computer when using the 700 Color Ser ial
Cable (P/N: 226-999-001).
Sabre 1551E / 1553 Cables connect directly to the Model 700 COM Port.
Limitationsand Capabilities
The Tethered Scanner has the following limitations:
SNo auto detection of a scanner’s physical connection to COM1 port.
User needs to ensure the communication settings of COM1 port
matched thesettings of the device.
SThe Pocket PC Pocket Office applications misbehave when control
characters such as carriage return are wedged. This is a known Pocket
PC problem, which is beingworked with Microsoft and for which a
work around is being developed.
SCommunications port is COM1 and cannot be changed.
SA complete bar code label is detected when the time between bytes (the
inter-byte gap) exceeds 100 ms. This allows that data could be concate-
nated if two labelswere received while the Comm Port Wedge or the
1551/1553 Tethered Scanner was not performing a read. That is, it
could be wedgingdata just read or the read thread could be preempted.
Also, the labelscould appear concatenated if the scanner itself were to
buffer the labels before transmitting them.
When enabled, the “CommPort Wedge” menu option has this limitation:
SThereisnobarcodeAPItogetbarcodedatafromthebarcodescan-
ner. The Comm Port Wedge transmits the data through the keyboard
interface only.
When enabled, the “1551/1553” menu option has these capabilities:
SGrid Data Editingis available.
SThe source of the symbology configurations is only available via the
Easy Set command labels. You can only configure the Virtual Wedge
configurations via the Data Collectioncontrol panel applet Virtual
Wedge page. See Appendix A, “Configurable Settings,” for information.
SMay transmitthe data through the keyboard interface(via the Virtual
Wedge).