Metrologic MS9540 VoyagerCG CodeGate Barcode Scanner KB Wedge PS/2 w/ Stand

Metrologic MS9540 VoyagerCG CodeGate Barcode Scanner KB Wedge PS/2 w/ Stand

The Metrologic MS9540 VoyagerCG is a handheld laser barcode scanner featuring CodeGate technology — a presentation-mode trigger system that holds the decoded data until the operator presses the activation button, preventing accidental scans in high-traffic environments. It connects to a host computer via a keyboard wedge interface, passing barcode data through the keyboard port without requiring separate software drivers or a powered interface box. This unit includes the original CodeGate cradle stand and a Metrologic 53002B AT-to-PS/2 KB wedge cable.

Specifications & What's Included

• Brand: Metrologic Instruments Inc., Blackwood, New Jersey, USA
• Model: MS9540 VoyagerCG (CodeGate)
• Interface: KB Wedge (keyboard wedge) — AT/PS/2
• Keyboard connector (host side): Female AT, 5-pin DIN
• Computer connector (host side): Male PS/2, 6-pin Mini-DIN
• Cable: Metrologic 53002B AT-to-PS/2 KB wedge cable
• Power: 5V (derived from keyboard port — no external power supply required)
• Laser: Class 1 visible laser diode, 1.0 milliwatt peak
• Manufacture date: December 2004
• Includes: scanner, CodeGate cradle stand, 53002B KB wedge cable

Applications

The MS9540 VoyagerCG was designed for retail point-of-sale, library, healthcare, and light industrial data-entry environments where a keyboard-wedge connection is required — particularly legacy systems running DOS, Windows, or other platforms that recognize keyboard input natively. The KB wedge interface was the dominant barcode scanner connection standard through the 1990s and into the mid-2000s, allowing scanners to work with virtually any PC, terminal, or cash register without drivers or serial port configuration. CodeGate technology made the VoyagerCG well suited to environments where a scanner sits in a stand and scans multiple items in sequence — the operator aims, the scanner reads and holds the data, and a button press commits the scan, reducing errors from unintended reads. These scanners remain in use today on legacy POS systems, AS/400 and IBM midrange terminals, and older DOS-based inventory platforms that still rely on PS/2 keyboard-wedge input.