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12. NW6860 (FRM) fixed HSS Capsule
12.1 General
The hardened storage server (HSS) forms the Fixed Final Recording Medium and is colored bright
orange for ease of location in the event of an incident. The HSS is designed to be mounted on the
´monkey island´ - and is fitted with an acoustic beacon to aid underwater recovery by a Remotely
Operated Vehicle (ROV) or diver in the event of an incident.
The unit is designed to withstand the extreme shock, impact, pressure and heat exposure
requirements of the IEC Performance standards which mirror those enforced by the maritime and
aerospace authorities.
The HSS has the capacity to store audio, radar video and other data for a rolling 48-hour
(minimum) period as defined in the regulations. All power and data are passed to the HSS via one
single Ethernet cable. Connection is via a waterproof connector.
The HSS has a release mechanism to facilitate underwater recovery both by a diver or a ROV.
Suitable handles are provided to ensure that the capsule may be retrieved safely after release.
The HSS has an externally mounted underwater location beacon (ULB) with an activation sensor
to avoid inadvertent activation due to spray/rain/hosing off. The HSS (memory module) protective
capsule is painted a highly visible fluorescent orange with the required text: VOYAGE DATA
RECORDER, DO NOT OPEN and REPORT TO AUTHORITIES.
When the HSS has been damaged after an incident, e.g. the HSS was exposed to fire or the ship
has sunk, it may be returned to the manufacturer for the data to be extracted. Alternatively,
authorities may apply for instructions on how to extract the recorded data.
The HSS meets the following specifications:
•
Fully meets IMO Resolution A.861(20) and all applicable Safety of Life at Sea (SOLAS)
Regulations.
•
Fully compliant to the IEC 61996-1:2013 Ship borne Voyage Data Recorder
Performance Requirements and IEC60945, Maritime navigation and Radio
communication systems - General requirements.
•
Records a minimum of 48 hours of voyage data.
•
Single wire Power and high speed (100BaseT) Ethernet communications.
•
Reliable solid-state recording (2+ years data retention unpowered).
•
Fitted with an acoustic underwater location beacon operating in the frequency band of
25 kHz to 50 kHz with a battery life of at least 90 days, which meets SAE AS 8045A.
•
Tamper resistant capsule design.
•
The final storage medium within the HSS retains the recorded data for a period of at
least two years, following termination of recording, under the specified operational and
storage conditions.
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