Electrical Engineering Abbreviations
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

Ra to Rh, Ri to Rz

RI - routing indicator
RIMM - Rambus DIMM [Memory Module Manufacturers]
RISC - reduced instruction set computer
RJ - Registered Jack [Telcom Connectors]
RJE - remote job entry
RLDRAM - Reduced Latency DRAM [DRAM IC Manufacturers]
RMM - Removable Memory Module
rms - root-mean-square [deviation]
RO - read only, receive only
ROA - recognized operating agency
ROC - required operational capability
RoHS - Restriction of Hazardous Substances [RoHS Description]
ROM - read-only memory [ROM IC Manufacturers]
ROSA - Receiver Optical Sub-Assembly
ROSE - remote operations service element protocol
RPC - Remote Power Controller
rpm - revolutions per minute
RPM - rate per minute
RPOA - recognized private operating agency
rps - revolutions per second
RPU - Reconfigurable Processing Unit
RQ - repeat-request
RR - repetition rate
RRH - Remote Radio Head
RS - Recommended Standard, Reed-Solomon
RSDS - Reduced-Swing Differential-Signaling
RSL - received signal level
rss - root-sum-square
RT - Real Time
RTA - remote trunk arrangement
RTC - Real Time Clock [RTC Manufacturers]
RTD - Resistance Temperature Detector [RTD Manufacturers]
RTL - Resistor Transistor Logic
RTM - Rear Transition Module
RTOS - Real Time Operating System [Software Vendors]
RTS - request to send
RTU - remote terminal unit
RTX - request to transmit
RU - Rack Unit [Equipment Rack Manufacturers]
RVA - reactive volt-ampere
RVWG - Reliability and Vulnerability Working Group
RWI - radio and wire integration
RWM - Read-write Memory
RX - receive, receiver
RXD - receive data
RZ - return-to-zero [Encoding Definitions]
PC motherboard

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