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Main image of MDB Payment Device to PC Converter RS232 Adapter Bill Acceptor Vending Machine Cash Interface Adapter Computer Serial Port Transfer Box for Connecting MDB Receivers

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MDB Payment Device to PC Converter RS232 Adapter Bill Acceptor Vending Machine Cash Interface Adapter Computer Serial Port Transfer Box for Connecting MDB Receivers

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1.Core Function & Protocol ConversionThis converter is primarily designed to connect MDB receivers, bill receivers, and card readers, with a key function of converting the MDB protocol (used in vending machines) to the RS-232 serial protocol. It also specifically converts MDB bill acceptor (BA) and MDB changer protocols to RS-232, serving as a slave device for the main control systemcompatible with any master device that supports RS-232 serial communication, such as a PC.
2.Wide Compatibility & Flexible ConnectionIt offers strong compatibility, supporting not only the RS232 port of computers but also Android motherboards or other motherboards equipped with RS232 or USB ports. For devices with only a USB port, an additional USB-to-RS232 transfer case can be used to create a virtual COM port on PCs or Android boards, ensuring flexible connection in various scenarios.
3.Rich Interface Support & Control CapabilityIt supports a range of interfaces including MDB, cash interfaces (10H

Overview

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Conditon: 100% New
Item Type: MDB to RS232 Converter
Material: ABS Plastic
Color: As Pictures Shown
Start Bit: 1
Data Bits: 8
Stop Bit: 1
Between Bytes: 1 Ms
Response (Maximum): 50 Ms
Master Polling Time: 150-300 Milliseconds
IU Waits for the Main Polling Time Before Rejecting BA and changer (Maximum): 3 Seconds
Minimum Voltage: 20V DC
Nominal Voltage: 24-34V DC (or 24-30V AC)
Maximum Voltage: 39V DC
Idle Current Consumption: Cable: Standard Computer Serial Cable, Standard MDB Cable

Package List
1 x MDB to RS232 Converter1 x Manual

Additional Information
First Listed on Newegg	September 24, 2026

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Return for refund within: 30 days
Return for replacement within: 30 days
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Item#: 9SIC81RM7E1160