VingCard KDE EST-4938 Magnetic Stripe Card Encoder
Manufacturer: VingCard (part of the ASSA ABLOY Global Solutions group, a world leader in door opening solutions).
Model: KDE EST-4938
Part/Serial Number: 998349
Origin: Seoul, South Korea (“KOREA SEO” indicates Seoul as the point of manufacture or distribution).
Primary Function:
The KDE EST-4938 is a programmable key card encoder. Its main purpose is to encode magnetic stripe cards (standard high-coercivity “HiCo” cards) with unique room access codes for electronic door locks, most commonly VingCard Classic or Signature series locks.
Key Features and Description:
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Standalone Operation: Unlike software-dependent encoders, this is a “smart” or “intelligent” encoder. It can operate independently after being initialized and loaded with a property code and sequence from a front desk system. It does not need to be connected to a computer for daily encoding.
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Secure Key Management: The encoder is not the system. It is a secure delivery tool for key data.
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It is programmed with a specific Property Code (a unique hotel identifier).
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It is loaded with a series of valid key codes (a “block” of numbers) downloaded from the hotel’s central PMS (Property Management System) or front desk software.
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It can only encode cards with the key numbers it has been given, ensuring control and security.
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User Interface: Features a simple keypad for entering room numbers, departure dates, and other functions, along with an LCD display to guide the user through the encoding process.
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Magnetic Encoding: Contains a high-reliability magnetic stripe head (HiCo) that writes data to tracks on the card (typically Track 2 or a proprietary format for VingCard locks). The encoding follows industry-standard formats and VingCard’s specific security protocols.
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Typical Use Case in a Hotel:
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A front desk agent downloads a set of key codes (e.g., for rooms 101-150 for the next week) from the PMS to the encoder via a serial or USB connection.
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The encoder is disconnected and placed on the counter.
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When a guest checks into room 101, the agent inserts a blank card, uses the keypad to enter room number 101 and the departure date, and presses encode.
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The encoder writes the unique, time-sensitive code for room 101 onto the card. The used key code is marked as “issued” in the encoder’s memory.
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Security & Audit Trail: Most models can store a transaction log of all cards encoded (room number, time, sequence number used), which can be uploaded back to the PMS for audit purposes.
Common Applications:
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Hospitality: The primary market, for encoding guest room keys.
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Corporate Offices: For encoding access cards for employees.
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University Housing: For student dormitory access.
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Healthcare Facilities: For staff access to restricted areas.
Physical Description (Typical of this series):
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A durable, hard-plastic casing designed for heavy front-desk use.
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A card slot for swiping/inserting the magnetic card.
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An alphanumeric keypad (0-9, function keys).
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A backlit LCD screen (2-4 lines).
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Connection ports (historically serial RS-232, later models USB) for communication with a PC/PMS.
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Label with model number (EST-4938), serial number (998349), and compliance markings.
