Adeunis RF AMR Gateway, User Manual

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ADEUNIS RF - WMBUS GPRS GATEWAY USER GUIDE V2.5.1
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2.3.3 Autonomy table
Depending on WMBUS listening cycles and the number of GPRS, the autonomy of self-powered versions of the AMR gateway may
vary. Below is a table showing autonomies generally recognized.
Initial file size File type
Real size to
transfer
WMBus dura-
tion
WMBus periodi-
city
GPRS periodi-
city
Autonomy (in
year)
20ko Compressed 12ko 4mn 12h 12h 6,1
20ko Compressed 12ko 4mn 6h 6h 3,6
20ko Compressed 12ko 4mn 4h 4h 2,5
20ko Compressed 12ko 4mn 2h 2h 1,3
20ko Compressed 12ko 4mn 1h 1h 0,7
20ko Compressed 12ko 2mn 12h 12h 7,1
20ko Compressed 12ko 2mn 6h 6h 4,4
20ko Compressed 12ko 2mn 4h 4h 3,1
20ko Compressed 12ko 2mn 2h 2h 1,7
20ko Compressed 12ko 2mn 1h 1h 0,9
5 ko Binary 5 ko 4mn 24h 24h 10,7
20ko Binary 20ko 4mn 24h 24h 8
20ko Compressed 12ko 4mn 24h 24h 9,2
20ko Binary 20ko 2mn 24h 24h 8,9
20ko Compressed 12ko 2mn 24h 24h 10,4
20ko Compressed 12ko 2mn 24h 7j 11
20ko Compressed 12ko 2mn 7j 7j 15
2.3.4 Frame length / storage ratio
The AMR Gateway embeds a microcontroller / EEprom capable of storing data from transmitters (up to 50Kbytes), until the next GPRS
transmission.
Depending on the length of the WMBUS frames (EN13757 standard gives a maximum of 255 bytes by frame), storage capacity varies.
Below is a table of the storage capacities (example) of the AMR Gateway.
Example of WMBUS frame length (in bytes) Number of transmitters received and stored in memory
60 800
100 500
160 300
250 200
Note : during the 4 minutes of listening, the WMBUS received frames are identified by the AMR Gateway. A received frame will be
stored only once during this period. This mechanism avoids the memory to be overloaded by products emitting very often.