OCEANO RT2500S/RT5000S Series – User Guide
II.5
Acoustic Commands
The equipment must not execute a command on any spurious noise. That is why every
command must be preceded by a "ARM" command. Each "ARM" command corresponds
to a "Customer code" specific to each customer.
Figure 2 - Command implementation principle
A new "ARM" code interpreted in this receiving window will reset the time-out T.
On receipt of its ARM code, the acoustic transponder transmits a CAF pulse received by
the remote control unit on the surface. The elapsed time (T) between the transmission of
the ARM code and the reception of CAF acoustic reply allows the remote control unit to
measure the RANGING (D) between the surface and the transponder: D = c
×
T / 2 (c =
1500 m/s).
The acoustic commands available under “ARM” command are:
•
RELEASE
•
RELEASE with PINGER
•
ENABLE/DISABLE Transponder Mode:
IIF ENABLED, CIF ENABLED
IIF ENABLED, CIF DISABLED
IIF DISABLED, CIF ENABLED
IIF DISABLED, CIF DISABLED
•
RESPONDER ON IIF (option)
•
RESPONDER ON CIF (option)
•
PINGER ON
•
PINGER OFF
•
DIAGNOSTIC
•
ACOUSTIC RESET
•
PRESSURE TELEMETRY ON (option)
•
PRESSURE TELEMETRY OFF (option)
Remarks:
•
Only one channel can be simultaneously configured in responder mode.
MU–RT8x1–AN–001 Ed. M – September 2013
7
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