Decision Data 122RX31S-1E Terminal Keyboard 28576-01 122-Key RJ-45

Decision Data 122RX31S-1E Terminal Keyboard 28576-01 122-Key RJ-45

The Decision Data 122RX31S-1E is a 122-key terminal keyboard designed for use with Decision Data dumb terminal systems, including the 9565 and 9240 series. It connects via a coiled cable terminating in an RJ-45 connector, as required by Decision Data terminal hardware. The keyboard features a full extended layout with dedicated function key banks on both the left side and top row — characteristic of the IBM 3270-style layout common on terminals of this era.

Specifications & What's Included

• Catalog / Model Number: 122RX31S-1E
• Engineering Part Number: 28576-01
• Number of Keys: 122
• Connector: RJ-45
• Cable: Coiled, attached
• Compatible With: Decision Data 9565 terminal, Decision Data 9240 terminal
• Color: Beige/light gray
• Country of Manufacture: Mexico
• Includes: Keyboard with attached coiled RJ-45 cable

Applications

Decision Data produced a line of IBM-compatible dumb terminals and terminal keyboards used in business data-entry and mainframe/minicomputer access environments from the 1980s into the 1990s. The 122-key layout mirrors the IBM 3278/3279 and 5250-style keyboard layouts favored in environments running IBM midrange and mainframe hosts, as well as Decision Data's own host-attached terminal systems. These keyboards are still sought by facilities maintaining legacy terminal infrastructure, as well as collectors and retrocomputing enthusiasts restoring period-correct terminal workstations. The RJ-45 connection is specific to Decision Data's proprietary terminal cabling and is not interchangeable with standard Ethernet or telephone cabling.