(d) Unit role indicators (App B, p B-9). You place branch or functional role indicators
inside the basic symbol. More than one role indicator may appear within the basic symbol to denote its
exact function. Figure 1-6 illustrates some examples of unit role indicators.
Figure 1-6. Unit role indicators
(e) Installation role indicators (App B, p B-16). Installation role indicators are similar in
purpose as unit role indicators except that they apply to installations vice units. Figure 1-7 shows
examples of installation role indicators.
Figure 1-7. Installation role indicators
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