TM 5-3805-281-24-1
System Diagrams
COMPONENT IDENTIFICATION TABLE
Each component (electrical device) and main connector
will have and identification letter assigned to it. A number
is added to the letter to separate and indicate the total
components within that letter group.
Identification Letter
Type
Examples
A
System, subassembly, parts group
Control units, trigger boxes, two-way radios, logic module, FNR
logic module
B
Transducer for conversion of non-electrical
Speed sensors, pressure sensors, pressure switches horns,
variables to electrical and vice versa
sensors, pickups, limit-value sensors, pulse generators,
loudspeakers, inductive pickups, probes, air-flow sensors,
oil-pressure switches, temperature sensors, ignition-voltage pickups
C
Condenser, capacitor
Condensers and capacitors, general
D
Binary device, memory
Digital devices, integrated circuits, pulse counters, magnetic tape
9015
recorders
10
E
Various devices and equipment
Heating devices, air conditioners, light, headlights, spark plugs,
3
ignition distributors
F
Protection device
Release mechanisms, polarity protection devices, fuses, current
protection circuits
G
Power supply, generator
Batteries, generators, alternators, charging units
H
Monitor, alarm, signalling device
Audible alarms, indicator lights, turn-signal lights, brake lights,
alarms, warning lights, buzzers
K
warning flashers
L
Inductor
Choke coils, coils, windings
M
Motor
Blower motors, fan motors, starter motors
N
Regulator, amplifier
Regulators (electronic or electromechanical), voltage stabilizers
P
Measuring instrument
Ammeter, diagnostic connectors, tachometers, fuel gauge, pressure
gauges, measuring points, test points, speedometers
R
Resistor
Flame glow plugs, sheathed-element flame glow plugs, glow plugs,
heating resistors, NTC resistors, PTC resistors, potentiometers,
regulating resistors
Continued on next page
TX,10,111507 1922AUG961/2
