User's Manual

Pacific Crest Corporation ADL Access User Guide – Dealer Version Page 19 of 28
monitoring equipment. The way you set up the ADL radio to talk to your PC is how
it will talk to all external devices (unless your ADL radio is a model with a user
interface on its front panel that allows radio configuration in the field). So you should
first determine which parameters are required for serial communications in the field
by the GPS receiver or external equipment and then input these same parameters into
ADL Access on the Serial Interface screen.
Serial communications require a serial port consisting of a software driver running in
concert with the operating system and a physical port – usually a DB9 connector. If
your PC, GPS receiver or other external device does not have a serial port, you may
use a serial-to-USB adaptor cable to connect the radio’s serial cable to the external
device.
a. Port Configuration
i. Baud Rate
The default baud rate between the PC and the radio is 38400. You can
select other rates between 4800 and 115200 by clicking the down arrow to
the right of the Baud Rate field.
ii. Parity
The serial ports on most PCs do not use any parity bits. But if your PC’s
COM port requires odd or even number of parity bits, click the down arrow
to the right of the Parity field and make the necessary selection.
b. Protocol Configuration
i. Protocol Type
You must select a protocol, a set of rules governing the order, syntax, etc. of
the data communicated between the external device, such as a GPS receiver,
and your radio. All radios communicating with one another must be set to
use the same protocol.
Choose the protocol your radios will use by clicking the down arrow to the
right of the Protocol Type field. The choices are as follows:
There are two types of “Transparent” protocols, in which the data have no
address or frame characters and are thus “transparent.” Radios using
transparent protocols, however, must know when the transmission has
ended, i.e., the End of Transmission or “EOT.” There are two ways to do
this: