Passport Trunking; Seamless Roaming; Initial Registration - Motorola CDM1550-LS+ User Manual

PASSPORT TRUNKING

®
PassPort is an enhanced, wide-area trunking
protocol developed by Trident Micro Systems.
Up to 128 trunked sites can be linked together
to form one PassPort system, which means
that your communications can extend far
beyond the reach of a single trunked site.

SEAMLESS ROAMING

PassPort Trunking systems offer you the ability
to seamlessly roam among all sites in a
network. Seamless Roaming means that you
do not have to manually change the zones on
your radio when roaming from site-to-site. As
you roam throughout a PassPort System's
coverage area, your CDM1550•LS+ radio is
regularly monitoring the RSSI (Received
Signal Strength Indication) level of the site on
which you are currently registered. In addition,
if the signal strength falls below the acceptable
threshold pre-programmed by your dealer,
your radio starts monitoring the RSSI level of
adjacent sites within the network. This allows
the CDM1550•LS+ radio to quickly roam to the
site with the strongest signal, which provides
you with optimal audio quality throughout your
communications.

Initial Registration

Before communications with your talkgroup
can begin, your CDM1550•LS+ radio needs to
register on the PassPort system. Registration
automatically takes place upon radio power up
or after selecting the desired PassPort zone by
pressing unless your radio is Site Restricted
from that site or Group Restricted from that
talkgroup. What you see:
1 Upon radio Power up, you see:
(if you select a PassPort zone after the
radio has powered up, see step 2).
2 The selected PassPort Zone Alias
appears on the display.
preprogrammed)
3 The selected Talkgroup Alias
appears on the display.
grammed)
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