Introduction; Scope; Applicability - mcmurdo C1 S-VDR Service Manual

1. INTRODUCTION

The Simplified Voyage Data Recorder (S-VDR) Float Free Capsule (FFC) provides
two essential safety features: a rescue beacon and a store of vessel data.
The Capsule provides the functions of an Emergency Position Indicating Radio
Beacon (EPIRB), which uses the COSPAS-SARSAT satellite network to pass
distress alerts to the rescue authorities. Under normal conditions position information
is derived from a GPS module; this greatly enhances the accuracy of the position
transmitted to the rescue services.
The S-VDR FFC maintains a store of information concerning the position, movement,
physical status, command and control of a vessel over a 12-hour rolling period.
Should any incident occur which requires investigation, the information contained in
the Capsule can be made available to both the Administration and the ship-owner.
This information may assist during any subsequent investigation to identify the
cause(s) of the incident.
The final recording medium is an ATA FLASH drive system installed in the Capsule.
The Capsule is designed to float free automatically if the ship sinks, and to transmit
its current location information through the COSPAS-SARSAT satellite network. The
Capsule complies with the requirements of IEC 61996-2.
The Capsule is capable of being accessed following an incident but is secure against
tampering. The Capsule encloses the Data Recording Unit (DRU) containing the
recording medium. The final recording medium is not accessible by standard
operating procedures during normal ship operations. Stored information can be
retrieved to an external device via the Data Collection Unit (DCU) without opening the
protective Capsule.
There are 2 variants of the DRU:
An Ethernet 10/100baseT interface which requires 24 V DC (nominal) external
power. This is available as 2GB or 6GB.
A Firewire DRU which interfaces through CAT5 cable and operates on 27V. This is
available as 6GB or 9GB.

1.1 Scope

This manual provides the complete instructions issued to shore-based maintenance
(SBM) providers to enable routine and emergency servicing of the S-VDR equipment
listed below.
This manual represents the original equipment manufacturer's (OEM) service
documentation applicable to these products.

1.2 Applicability

This information applies to the following S-VDR equipments:
• 36-001-001A Firewire 6GB
• 36-001-002A Ethernet 2GB
• 36-001-003A Ethernet 6GB
• 36-001-004A Firewire 9GB
• 36-001-005A Ethernet 2GB
C1 S-VDR service manual Issue 1 Page 1