The Fathom Systems DDCS is further extended with the provision of a suitably packaged system chassis and ruggedised tablet PC for installation in the cockpit of the SPHL (Self-Propelled Hyperbaric Lifeboat).
This application is to allow the SPHL chamber supervisor (typically an LSS/LST) to communicate with divers inside the SPHL chamber and also allows communications between the SPHL cockpit and an outstation local to the SPHL launch station prior to the SPHL being launched.
The system is based around a shorter 2-slot 3U electronic system chassis packaged inside an IP65 rated stainless steel enclosure, typically mounted to a bulkhead inside the SPHL cockpit and within reach of the LSS in charge. Similar to the standard 5-slot 3U electronics chassis, this contains a number of individual electronic modules, connected together by a passive backplane. The system can accommodate a total of six channels, but most installations will only require three channels to be installed. For each channel there is a separate Fathom Systems remote outstation unit which has a microphone and loudspeaker plus a headset connection. The outstations are located in the various local and remote locations where communications are required, and each outstation is connected back to the main system chassis (stainless enclosure) by fixed cables. The User in charge of the communications system (the Master user, and in the SPHL application typically the LSS) controls the volume levels of the various channels and is responsible for enabling and ‘routing’ the various channels to allow communications between the desired parties.
Control of the SPHL Comms unit is via a ruggedised tablet PC (typically a Panasonic CF-D1) which is mounted local to the main system enclosure. Control of the system is via a dedicated software application that runs on the tablet PC.