JRC Alphatron SSRS, Installation And Operation Manual

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2.2 Network Operations
The Alphatron SSRS performs multiple network operations according to part 450 of the IEC 61162 standard. This
includes inter-device communication and logging.
The transmission groups are mapped to the following multicast addresses and ports:
Transmission group Address port combo:
MISC 239.192.0.1:60001
PROP 239.192.0.8:60008
USR1 239.192.0.9.60009
USR2 239.192.0.10.60010
USR3 239.192.0.11.60011
USR4 239.192.0.12.60012
USR5 239.192.0.13.60013
USR6 239.192.0.14.60014
USR7 239.192.0.15.60015
USR8 239.192.0.16.60016
Table 4: Transmission Groups
Note These transmission groups are defined in part 450 of the IEC 61162 standard.
Multiple IE 61162-450 sentences are sent and received by the Alphatron SSRS display device.
List of the applicable sentences:
• PJTR sentences (SRS proprietary sentences and VOL proprietary sentences)
• HBT sentences
• DDC sentences
Note For more information or clarification regarding these sentences, refer to IEC 61162-450.
2.2.1 PJTR Sentence
The PJTR sentence is a proprietary sentence that is used for communication between the master and slave Alphatron
SSRS display units.
The first parameter of this sentence is the sentence code for our proprietary sentences. The remaining parameters
depend on the sentence code that is sent.
The Alphatron SSRS has the following three proprietary sentences:
• Sound Reception Signal (SRS)
• Volume (VOL)
• Heartbeat (HBT)
17 | Operation