F. Cables 



Two specially constructed 100-foot sections of MSPU-7 sonar cable connect 

 the declc-mounted transducer with the below deck recording area. The outboard 

 sensing element ends are fitted with waterproofed female Joy connectors, built to 

 withstand the pressures encountered during diving. The cables lead from the sensor 

 housing, passing under the deck, and enter the hull through two "E"-type hull 

 fittings in the recording compartment. 



Figure 4 illustrates cable connections at the oceanographic console. Spare 

 conductors are shown which can be used to expand the system for measuring other 

 variables. Special cables (Fig. 5) were necessary to connect the sound velocity- 

 depth housing to the MSPU-7 cable. 



III. OPERATING INSTRUCTIONS 



A. Standby 



Prior to beginning the actual collection of data, power to all equipment 

 should be on, the digital clock running, the EDO recorder on "STANDBY, " all 

 counters set on "INFINITY, " and the tape punch switch in the "OFF" position (the 

 above conditions will prevail at all times, except when data is being collected, or 

 when trouble shooting is in progress). 



B . Format of Data Message 



The data message varies in format with the modes employed, and prior to 

 periods of data collection or calibration appropriate format codes are manually 

 introduced Into the tape punch coupler. See Appendix B for format codes. 



All data messages can be read directly from the digital recorder, or can be 

 recorded on digital punch tape. 



1 . Mode 1 data message 



a . Digital Recorder 



Recorder 



Paper 

 Movement 



6002335 

 5015156 

 4000243 

 3507655 

 2130038 

 1111827 



