Chapter 12: Final Recording Medium Setup, Rev. 1.5
12.3.2.2 Mounting the JoTron Float-free SFRM Capsule
The JoTron Float-free SFRM protective capsule must be located on the external deck near the
bridge to increase the probability of its survival and recovery following an incident. As outlined in
IEC 61996, the capsule “shall be positioned clear of rigging and other potential obstructions and
as near to the centerline of the ship as practically possible.”
Figure 12–17 - JoTron Float-free SFRM Capsule
NOTE! The mounting pattern provided in Figure 12–17 - JoTron Float-free SFRM
Capsule above, is applicable to the VDR-100G3S Simplified FRM only.
Criteria to be considered when assessing the optimum position shall include but not be limited to
the following:
1. Separation from fuel or other potential fire sources;
2. Separation from probable sources of mechanical damage;
3. Operational environment for continued serviceability; and
4. Accessibility for copying of recorded data and for routine maintenance.
The SFRM is supplied with an interconnect cable. This cable must connect to the VDR-100G3/S
through a junction box that is supplied with the JoTron float free capsule.
The junction box must be shielded and connected to the hull of the vessel. The junction box is
normally mounted on the exterior deck and located near the SFRM and positioned within range of
the interconnect cable. All hull penetrations for cables must be fitted with waterproof glands (not
provided with VDR-100G3/S) and should be protected by a gooseneck conduit.
VDR-100G3/G3S Installation Manual 10/12/2008
12 - 29
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