Crosstalk Prevention; Encrypted Integrated Data; Securenet; Over-The-Air Rekeying - Motorola APX 2500 User Manual
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1.3.3
CrossTalk Prevention
CrossTalk Prevention feature prevents crosstalk scenarios and allows the adjustment of the internal
SSI clock rate of the radio. This reduces the possibility of radio frequency interfering spurs.
1.3.4
Encrypted Integrated Data
Encrypted Integrated Data (EID) provides security encryption and authentication of Integrated Voice
and Data (IV&D) data bearer service communication between the radio and the Customer Enterprise
Network.
1.3.5
SecureNet
SecureNet allows you to perform secured communications on an Analog or Motorola Data
Communication (MDC) channel. The MDC Over-the-Air Rekeying (OTAR) feature allows you to
perform OTAR activities on an MDC channel.
1.3.6
Over-the-Air Rekeying
The Over-the-Air Rekeying (OTAR) feature allows the dispatcher to remotely reprogram encryption
keys in the radio after a rekey request.
Single-system OTAR
Single-system OTAR allows a radio to be rekeyed by only one Key Management Facility (KMF) or
Key Management Controller (KMC).
Multi-system OTAR
Multi-system OTAR allows a radio to be rekeyed by multiple KMFs. After an initial programming, the
radio is able to seamlessly move to different secure systems associated to a newly selected
channel.
NOTICE: This feature must be preprogrammed by a qualified radio technician. Contact your
system administrator for more information.
1.3.7
P25 Digital Vehicular Repeater System
Motorola Solutions offers an MSI Certified APX compatible, third party, P25 Digital Vehicular Repeater
System (DVRS) that provides low-cost portable radio coverage in areas where only mobile radio
coverage is available and portable radio coverage is either intermittent or non-existent.
The system sends DVRS firmware and configuration updates over-the-air. The following scenarios
occur during the update:
•
If the update is accepted, the display shows Updating DVRS.
•
If the update fails, the display shows DVRS updt failed. Contact your system administrator for
more information.
NOTICE: Portable subscriber units enabled in the system for Radio Authentication shall be able
to authenticate regardless of whether they are communicating directly on the system or by
using a DVRS.
68012006035-EM
Chapter 1: Read Me First
13
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