11.1 Cable Transmission of Analog Voltage and Current Signals 11.2 Cable Transmission of Digital Data 11.3 Fiber-Optic Data Transmission 11.4 Radio Telemetry 11.5 Pneumatic Transmission 11.6 Synchro Position Repeater Systems 11.7 Slip Rings and Rotary Transformers 11.8 Instrument Connectivity 11.9 Data Storage with Delayed Playback (an Alternative to Data Transmission)