The following layers are created by default in the Block Schematic environment and the symbol shown here is built up using objects on specific layers as described.
Some layers are designed to hold symbol information, some are there so that users can add their own information in the drawings they produce. These layers are indicated by [User].
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Layer Name |
Purpose/Convention |
Sample |
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Work Layer |
[User] General purpose working layer. (No objects appear on this layer in symbols) |
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Outline |
The outline, description and model number of the product. Sometimes also a stylised graphic to show the overall function of the product. |
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Audio Circuit Paths |
Connection stubs and input/output labels for audio signal paths (e.g. Mic level, Line level and Speaker level). |
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Video Circuit Paths |
Connection stubs and input/output labels for video signal paths (e.g. S-VHS, RGB/Synch etc.). |
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Lighting Circuit Paths |
Connection stubs and input/output labels for lighting signal paths (e.g. DMX etc.). |
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Control Circuit Paths |
Connection stubs and input/output labels for control signal paths (e.g. RS232, control voltage etc.). |
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Power Circuit Paths |
Connection stubs and input/output labels for power signal paths (e.g. mains, DC etc.). |
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User Circuit Path 1 |
[User] Connection stubs and input/output labels for user-specified signal paths. |
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User Circuit Path 2 |
[User] Connection stubs and input/output labels for user-specified signal paths. |
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Mechanical Interconn. |
[User] Mechanical relationships not usually shown in schematic format (e.g. rack housings, physical locations etc.). |
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System References |
[User] Any information required by the user to identify components within the system. |
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Module Targets |
Insertion targets for modular equipment which needs to be precisely located within a sub-frame. |
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Title & Borders |
[User] Drawing border and any information used to reference the drawing (draughtsman, company details, project, drawing number etc.). |
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