User's Manual

Pacific Crest Corporation ADL Access User Guide – Dealer Version Page 15 of 28
If the radio is a receiver-only, however, the TX Power field is grayed out. The
Radio Type field on the Identification screen (see above) indicates if the radio is
a transceiver or receiver only.
g. Address Settings
Use the Address Settings fields to set both Local and Destination addresses for
any two Pacific Crest ADL transceivers to communicate exclusively with each
other.
The main advantage of addressing is the ability to restrict the usage of transmitted
data to a specified receiver. Any receiving “rover” radio with a Local address
different from the transmitting “base” radio’s Destination address will delete the
data without repeating it over the air to other radios or sending it serially to an
external device such as a GPS receiver. Addressing thereby allows multiple
transceiver pairs to operate on the same channel without “seeing” each other's
data. The tradeoff is the need for the addressed radios to have TX/RX capability.
The addressing feature only works between two radios. In addition, both of the
radios must be configured for the Transparent EOT, Transparent EOC or Packet
Switched protocols. (You select a radio’s Protocol Type on the Serial Interface
screen – see below.) The Local address of one radio must be the same as the
Destination address of the other radio, and vice versa. For example, a radio with
Local=X and Destination=Y will be able to communicate only with another radio
with Local=Y and Destination=X.
To select a Local or Destination address, click the appropriate field and type in a
number between 0 and 254. You can input only one Local and only one
Destination address into any one radio.
Selecting 255 for the Destination address is a special case designated as
"broadcast mode.” When 255 is selected as a radio’s Destination address, all
Pacific Crest radios sharing the channel – regardless of their Local address – will
be able to receive the data transmissions and either repeat them over the air to
other radios or send them serially to an external device.