What are submarine shipboard communications systems?

Submarine shipboard communications systems consist of RF antennas and radio room equipment, both RF transmitters/receivers and baseband suites. The following sections describe the current baseline submarine communications capabilities and list the current (POM 96) programs. This appendix is organized into five major sub-sections.

Are call boxes a code-compliant emergency communication system?

Each Area of Refuge requires hands-free, two-way emergency communication devices (Call Boxes) on each floor above/below the main exit floor. A code-compliant two-way communication system for rescue assistance requires a central control point to manage emergency assistance calls from call boxes.

What is a two-way emergency communication system?

The Command Center Two-Way Emergency Communication System is designed to provide efficient two-way, person-to-person voice communication for Area of Refuge, accommodating an impressive range of 1 to 116 Call Boxes. Utilizing a home run configuration with only one pair of wires needed between each Call Box and the head end.