Oldham BM25, Руководство пользователя

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4
– Wireless Version
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In the example above, BM 25W (unit D) is the only communication link between A, B,
C and E, F, G. If BM 25W (unit D) had a fault (low battery for instance) or if an
obstacle were to disrupt communication between D and E or D and B, then all BM
25Ws would report a fault failure (steady flashlight according to case No. 2
– see
table of alarms).
IMPORTANT :
■
Note that the gas detection remains effective and that BM 25W (unit D) would still
locally alarm in the presence of gas. It is the same for each BM 25W on the
network. Only the alarm would not be transferred to the whole network.
■
To ensure maximum network reliability, a BM 25W should always communicate
with at least two neighbors.
Figure 29 : group concept (read details below)
A long press on the « acquit » button
forces the system to a new identification of
the nodes present on the network. BM 25Ws that do no communicate are ignored
without triggering a fault condition. In the example above, the communication between
D and E is down. A long press on the « acquit » button of BM 25W (unit D) resets the
network. All BM 25Ws communicating with D automatically launch a new identification
in turn. On one side, BM 25Ws A, B, C and D discover each other and form a first
group. On the other side, BM 25Ws E, F and G still report a communication failure
since they do not receive data from the BM 25Ws of the newly formed group. A long
press on the « acquit » button of one BM 25W (unit E, F or G) clears the list of BM