16 System Feature Overview
April 2011 68007024085
Dynamic Mixed Mode does not support the following configurations/features.
• IP Site Connect configuration - This means that in Dynamic Mixed Mode, the
repeater can only repeat the digital calls over-the-air and cannot send the voice/
data packets over the IP network. The status of the repeater and the control of the
repeater cannot be performed from a remote PC application like RDAC-IP.
• Capacity Plus configuration - This means that in Dynamic Mixed Mode, trunking
the logical channels of multiple MOTOTRBO repeaters as per Capacity Plus is not
supported.
• FCC Type-I and Type-II monitoring - Since FCC Type-I and Type-II monitoring are
not supported in single site analog operation in any of the earlier MOTOTRBO
releases, it is also not supported in Dynamic Mixed Mode single site operation.
• Transmit Interrupt feature - The Voice Interrupt, Emergency Voice Interrupt,
Remote Voice Dekey, and Data Over Voice Interrupt features are presently not
supported in Dynamic Mixed Mode systems.
• RDAC over IP feature - RDAC over local USB and connections via GPIO are
supported. RDAC over the network is NOT supported.
• Repeater Knockdown - In Dynamic Mixed Mode systems, this feature is not
supported during an ongoing digital transmission.
• PTT on a 4-wire interface - In Dynamic Mixed Mode systems, this feature is not
supported during a digital repeat operation.
4. When operating in IP Site Connect Mode, MOTOTRBO combines the logical channels of
multiple MOTOTRBO systems (operating in digital repeater mode at dispersed locations)
into one logical channel covering all locations. In this mode, repeaters across dispersed
locations exchange voice and data packets over an IPv4-based back-end network. There
are three main functions of this mode.
• To increase the RF coverage area of a MOTOTRBO system.
• To provide voice and data communication between two or more MOTOTRBO single
site systems located at geographically separate locations.
• To provide voice and data communication between two or more MOTOTRBO single
site systems operating in different frequency bands (e.g. 800/900 MHz, VHF, and
UHF).
The backend network of an IP Site Connect system is designed to work seamlessly with
internet connectivity provided by an Internet Service Provider (ISP). The system only
requires that one of the repeaters have a static IPv4 address, while the others may be
dynamic. Also, the system avoids the need for reconfiguration of a customer’s network
such as reprogramming of firewalls.
When a new call starts at one of the logical channel of a repeater, the repeater sends the
call to all the repeaters and all these repeaters repeat the call on their corresponding
logical channel. This allows a radio in the coverage area of any repeater to participate in
the call. Thus, the coverage area of an IP Site Connect system is the sum of the coverage
areas of all the repeaters. However, note that an IP Site Connect configuration does not
increase the capacity (i.e. number of calls per hour) of the system. The capacity of one
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