julian
bf37106c5c
The reader on hand is a GEE-QR-ER80 QR/DataMatrix/1D barcode access reader (not an EM4100 prox-card reader as first guessed). Interfaces: Wiegand 26/34, RS-232, RS-485, USB, TCP/IP; 4-15 VDC; Linux-supported. Variant on hand: -Q-W (QR scanner, Wiegand/RS-232/485). This is the QR-ticket scanner the design already needed: a host-side reader whose scans become read-bus events consumed by the (already-built) exit flow and QR-permit path. Prefer RS-232/485 over Wiegand (Wiegand can't carry a variable-length QR string; autonomy is moot with the no-ACL Dingtian). New source + entity pages; updated ticket-encoding, entry-exit-readers, index. Open (blocks the adapter): the RS-232/485 frame + baud (ASCII CR/LF expected).
38 lines
1.9 KiB
Markdown
38 lines
1.9 KiB
Markdown
---
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type: source
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tags: [parking, hardware, readers, qr, datasheet]
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sources: [gee-qr-er80]
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updated: 2026-06-16
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---
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# Source: GEE-QR-ER80 QR Code Access Control Reader (datasheet)
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Vendor datasheet (GEE NFC LIMITED, ©2007–2019) for the **GEE-QR-ER80** — a static
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**QR-code access-control reader**, optional ID/IC card. The reader the project has
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on hand for the [[ticket-encoding|QR ticket]] path. Raw:
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`raw/GEE-QR-ER80 QR Code Access Control Reader.pdf` (3 pages). Entity: [[gee-qr-er80]].
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## Key takeaways
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- **Optical scanner**, not a prox-card reader: reads **QR, DataMatrix, 1D barcode** (static).
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Optional add-ons for **IC card UID / ID card**.
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- **Multi-interface:** **Wiegand 26/34, RS-232, RS-485, USB, TCP/IP** — selectable by variant.
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- **Power:** 4–15 VDC, < 800 mA. **Read direction:** 360°. Built-in scanner LED.
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- **OS:** Windows XP/7/8/10 **and Linux** (explicit) — fits the [[disk-os-hardening|Linux appliance]].
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- **Wiring (Wiegand/RS-232/485 variant):** VCC(+12V), GND, **D0/D1** (Wiegand), **TX/R+ , RX/R-**
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(RS-232 / RS-485), plus **LED** and **BEEP** control lines (host can drive feedback).
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- **Order code** `GEE-QR-ER80-<scanner>-<interface>`: `Q`=QR scanner / `D`=ID reader / `C`=IC reader;
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`W`=WG·RS232·RS485 / `U`=USB / `T`=RJ45 (TCP/IP). **On hand: `-Q-W`** (QR scanner; Wiegand/RS-232/RS-485).
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## Section map
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- p1 — overview, physical + feature table (interfaces, power, read direction).
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- p2 — supported types (QR/DM/1D + optional IC/ID), OS, environment; **wire definition** (pin table).
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- p3 — order-code breakdown, applications (access control / vacation rentals / time attendance).
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## Not in this datasheet (open)
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- The **RS-232/RS-485 data protocol**: baud rate, frame format, and whether a QR scan is emitted as
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an **ASCII string** (expected) vs. some framed protocol. Decides the host-side adapter — see
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[[gee-qr-er80]] open questions. Resolve by vendor docs or by observing the port on a scan.
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