Motorola V186 User Manual - Page 113

When this succeeds, the radio configuration is completed, and the radio using the IP

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Communications Unlike other infrastructures (such as iDEN and TETRA), this IP address and radio unit ID cannot be retrieved for diagnostics from the radio. Instead a dummy IP Address is provided by the radio as it is configured using the CPS (Codeplug Programming Software). STS SCADA Central Ethernet LINE 1 IP RS-232 Gateway Customer Enterprise Network ASTRO IV&D infrastructure Base Station GGSN PDR RNG LINE 1 STS RS-232 XTL5000 Radio RTU-A XTL5000 Radio RTU-B A PC running STS can be connected directly to an RTU, directly to a radio, or it can operate remotely over the CEN. For an RTU or PC to communicate over the air using an ASTRO IV&D radio, the radio must be context activated, or registered for data, in addition to the PPP connection over RS232 interface. The RTU uses SNMP protocol and sets a value in a MIB variable defined for this radio. When this succeeds, the radio configuration is completed, and the radio (using the IP address provided periodically by the GGSN in the infrastructure) is able to receive and transmit data. If the context activation fails or is deactivated, the RTU causes the radio to restart (power itself off and on.) Once the radio has been context activated, an RTU (or PC) can transmit IP frames over the air to the PDR which routes them to the GGSN and CEN. 109

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Communications
Unlike other infrastructures (such as iDEN and TETRA), this IP address and radio unit
ID cannot be retrieved for diagnostics from the radio. Instead a dummy IP Address is
provided by the radio as it is configured using the CPS (Codeplug Programming
Software).
RS-232
LINE 1
LINE 1
RS-232
SCADA
Central
Customer
Enterprise
Network
Base
Station
PDR
RTU-A
XTL5000 Radio
Ethernet
IP
Gateway
RTU-B
GGSN
RNG
ASTRO IV&D
infrastructure
STS
STS
XTL5000 Radio
A PC running STS can be connected directly to an RTU, directly to a radio, or it can
operate remotely over the CEN.
For an RTU or PC to communicate over the air using an ASTRO IV&D radio, the radio
must be context activated, or registered for data, in addition to the PPP connection over
RS232 interface.
The RTU uses SNMP protocol and sets a value in a MIB variable defined for this radio.
When this succeeds, the radio configuration is completed, and the radio (using the IP
address provided periodically by the GGSN in the infrastructure) is able to receive and
transmit data. If the context activation fails or is deactivated, the RTU causes the radio to
restart (power itself off and on.) Once the radio has been context activated, an RTU (or
PC) can transmit IP frames over the air to the PDR which routes them to the GGSN and
CEN.
109