The Disk Drives
Advanced User’s Guide
1-9
z
In IR mode, all physical communications meet the IrDA physical layer
specification.
z
In the modified RS-232 serial mode, the IR port is used to transmit RS-
232 level data out the IR port. The third pin along the bottom of the
Falcon
33x
and
34x
is used to receive RS-232 level data.
z
In general, the IR mode is used when communicating to other IR devices
(printers, computers, etc.) and the modified RS-232 mode is used to
communicate with the dock for host communications.
z
The Falcon
33x
and
34x
do not propagate the RS-232 hardware signals
such as RTS, CTS, DTR, DSR, RI, and DCD.
Figure 1-6: The IR Serial Port on the Falcon 33x and 34x
The Disk Drives
The Falcon contains four logical disk drives that provide storage for system
files, applications, and data.
Drive A
Drive
A
is a read-only drive. Its contents cannot be changed.
Drive B
Drive
B
is a read-only drive used to store system utilities and to initialize the
boot process. Its contents cannot be changed.
When using Zmodem, flow control must be the same on both sides of the
transmission. Normally, XFER defaults to RTS/CTS flow control. On the Falcon 33x and
34x, it defaults to Xon/Xoff. When transferring files between a 33x or 34x and the host
PC, make sure the PC is also using Xon/Xoff. See the
/F
option on
for
more details.
advuser.book Page 9 Friday, September 27, 2002 4:22 PM