58 ELECTRICAL AND ELECTRONIC SYSTEMS 



for the Command Control van to switch off the FM circuit when using the helium speech un- 

 scrambler. Receptacles and mating plugs shall be provided on the patch panels. Circuits from 

 the patch panel to the speakers to be located in the berthing space and lab space shall be in- 

 stalled. 



Audio, CCC to Sealab 



The audio link for two-way communication from the CCC to Sealab shall be a commercial 

 intercom system, Bogen or equal. A two-station master shall be provided for the CCC and a 

 remote unit at the Sealab Communication Center. The conductor and connector requirements 

 are listed in Table 2. 



Audio, CCC to Shore via Sealab 



The second station on the master station provided in the previous paragraph shall be used 

 for the audio link from the CCC to shore. A remote unit shall be furnished for the shore sta- 

 tion. Conductor and connector requirements are listed in Table 2. 



Wedge Spirometer 



The wedge spirometer is being furnished by the Submarine Medical Center (SMC) and will 

 be shipped to NOTS, Pasadena. Wiring diagrams will be furnished to all concerned at the ear- 

 liest possible date. NOTS, Pasadena, will provide an extension cable from the patch panel in 

 the CCC to the atmosphere van. An Amphenol plug 67-06J14-9S shall be installed on each end 

 of the cable. The type of cable required will be specified later. Conductor and connector re- 

 quirements are listed in Table 2. 



O2 Partial Pressure 



The Krasberg unit for determining the Oj partial pressure will be furnished by ONR and 

 Special Projects. The equipment will be shipped to NOTS, Pasadena. Provisions are being 

 made to monitor and record the Oo partial pressure remotely. The conductor and connector 

 requirements are listed in Table 2. The installation of the unit and connections to the patch 

 panel will be accomplished during the fitting-out period at Long Beach. 



Equipment Mounting Strips 



To facilitate the installation of communication and monitoring equipment during the fitting- 

 out period, two slotted metal angle strips shall be installed on the overhead in the lab space, 

 galley and berthing space. 



The strips shall be installed approximately 2 ft 2 in. on either side of the center line, the 

 entire length of each space. Where interferences exist, the strips may be omitted. The strips 

 shall be on the surface of the cork insulation. 



Circuits for Shore Equipment 



The following circuits shall be installed from a terminal box located near Scripps elec- 

 tronic rack to the locations indicated for equipment to be installed later. 



Equipment Type Conductor Location 



Open Mike (3) Shielded Pair (3) (1) Berthing area 



(2) Galley 



(3) Lab 



