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Section 3
COMMUNICATION
3.1 COMMUNICATION APPARATUS
The NEPTUNE II allows the use of various communication systems between divers and/or the
surface. It Is compatible with most underwater communication systems if supplied with the
proper adapter DIN connection. Information may be obtained from your Ocean Reef dealer.
3.2 INSTALLING THE UNDERWATER COMMUNICATION SYSTEM
The microphone support (PTT) is screwed into the connection located on the left side of the
mask and identified with the words COMMUNICATION SYSTEM. The GSM is installed on the
left side of the head harness attaching the Neptune Assembly Connection System (NACS) on
the 2 visor supports as per NACS/GSM instructions.
3.3 USING OF THE UNDERWATER COMMUNICATION SYSTEM
For correct use of the underwater communication system see its special instructions.