# Standalone source cross-reference

Canonical URL: https://eloragrid.ai/symbols/iec-standalone-source-cross-reference
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: HA2S1_REF
Drawing use: Schematic
Reference families: Manufacturer

A source cross-reference identifies the originating side of a diagram continuation relationship.

## What it represents

A source cross-reference identifies the originating side of a diagram continuation relationship. This is a navigation and association element linking a circuit or signal to its continuation. Its source role is meaningful only when the matching destination reference is present.
Use consistent reference text, sheet identifiers and locations at both ends. Cosmetic source shapes do not create different circuit functions.

## How to read it

- Provide the matching destination reference, sheet and location information.
- Rectangle, hexagon and ellipse presentation styles are kept as one source-reference concept.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- Provide the matching destination reference, sheet and location information.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

Rectangle, hexagon and ellipse presentation styles are kept as one source-reference concept.

## Facts

- Reference scope: Publisher drafting annotation / connectivity convention
- Publisher reference token: HA2S1_REF, HA3S1_REF, HA5S1_REF (Autodesk token; not a verified IEC database ID)
- Information added: Provide the matching destination reference, sheet and location information.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [Autodesk IEC-60617 preview: Standalone source and destination cross-references](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-9517DC1C-1B8E-4C09-89EE-433B372FE3ED.htm) — Autodesk. Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.