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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
MISC
PROP
USR1
USR2
USR3
USR4
USR5
USR6
USR7
USR8
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
Address port combo:
239.192.0.1:60001
239.192.0.8:60008
239.192.0.9.60009
239.192.0.10.60010
239.192.0.11.60011
239.192.0.12.60012
239.192.0.13.60013
239.192.0.14.60014
239.192.0.15.60015
239.192.0.16.60016
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