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IPDS Printing
Win10 - IPDS
5765e - IPDS
5755e - IPDS
5735e - IPDS
5435e - IPDS
Adaptio - IPDS
iSeries Printing
zSeries Printing
Win10 - SCS
5760e - SCS
5750e - SCS
5730e - SCS
5450e - SCS
5430e - SCS
5430b - Barcode
5431b - Barcode
Adaptio - SCS
2677e - Ethernet
2677m - Twinax
Xip+ Controller
Xip Controller







PrintBox TxS Plus & CxS Plus
Twinax / Coax Interface for Serial Printers


I-O 8220 Test TextConnect Your Serial Interface Laser, Matrix or Barcode Label Printer to your IBM iSeries AS/400 Over Twinax

PLEASE NOTE:  The I-O CorporationPrintBox TXP Lite and CXP Lite Twinax and Coax Printer Interfaces are no longer manufactured.   The direct replacement for the TXP Lite and TXP+  Twinax Interface is the Praim PR165e Twinax-to-Parallel Printer InterfaceFor the CXP Lite and CXP+ Coax Interface the  Axis AX-7 Cobra Coax-to-Parallel Printer Interface is the direct replacement .  Please click on either of these to products for more information.


The I-O Print Box TXS/CXS Plus turns any serial interface ASCII laser, dot-matrix or barcode label printer into a powerful Twinax or Coax printer. It can easily be configured to meet the most demanding printing requirements.

If you need a Parallel-to-Twinax printer interface, click here to be taken to the TXP+/TXS+  Printer Interface page.

If you need Twinax AFP or IPDS printing, please click here for the 4465-TX. 


  • Attaches virtually any PC printer with a serial port to an IBM Power System, System i, i5, iSeries AS/400, System/3X, or 53X4 Remote Controller  with a standard Twinax (or balun) connection, or to a 3270-type mainframe host or 3174 type controller with a standard coax (or balun) connection.

  • Setup is quick and easy via the mouse-supported PC setup software, through Host/PC download commands, and on-board DIP switches.

  • Comes with built-in intelligent printer sharing capabilities, allowing the attached printer to be automatically shared between Twinax/Coax and PC/LAN users at no extra cost.

  • Comes with the industry's best 3812-1, 4214, 5224/25/56 Twinax and 3812-1, 4214, 4224, 4234, 3287/68/62 coax printer emulations (all non-IPDS).

  • Supports multiple fonts, duplex printing (Twinax only), Automatic Print Orientation, Computer Output Reduction, and other features. APF/ BGU printing is available across all IBM matrix printer emulations (Twinax).

  • Comes with drivers for a wide variety of popular PC printers including Hewlett-Packard PCL-type laser, Epson and IBM dot-matrix printers. In addition, laser printers can be driven as IBM 5225 line printers.

[Twinax Features][Coax Features][Specifications][Benefits]

Click here for more information on Twinax and Coax Interfaces

If you are only using a Matrix printer and DO NOT need integrated printer sharing, please click on the link here for information on the more economical PrintBox TXS/CxP Lite.

IBM Features:

Twinax AS/400

  • Attaches to IBM Power System, System i, i5, iSeries AS/400 or System/3X Hosts, or 5X94 Controllers via Twinax attachment

  • Supports IBM 3812-1 (SCS), 4214, 5224/25/56 Printer Emulations

  • APO and COR

  • Supports duplex selection of OS/400 beginning with V2R3 and OfficeVision/400

  • Supports Multiple Fonts via IBM Typestyle Numbers

Coax 3270

  • Attaches to IBM System z, zSeries, 30XX, 43XX, or 937X Host, or 3x74 or 3276 Controller

  • IBM 3812-1, 4224, 4214, 3287/68/62 Printer Emulations (all non-IPDS)

  • LU3 (DSC) and LU1 (SCS) Mode Printing

  • APO and COR for laser printers

  • Supports All Applicable IBM RPQs

Additional Features



IBM Compatibility

Offers complete IBM compatibility for 3812-1 (non-IPDS) and 5224 printer emulations.

Easy Setup

Host or PC download configuration "on the fly". PC download or push-button configuration allows setup of the interface without being connected to the 3270 host, for pre-programming of the interface.

Intelligent Host/PC Printer Sharing

Attach a PC and a Host to the same printer. Automatically monitors both input lines for data and selects the next incoming stream without user intervention.

I-O Command Pass-Thru™

Allows access to all user-programmable printer functions.

Host/PC Download Commands

Allows printer configuration customization.

Custom User Strings

Allows the user to assign commonly used printer commands to simple identifiers which can be sent to the printer prior to printing a document.




Host Systems

Twinax (5250) or Coax (3270)


IBM Twinax (TxP Plus) or Coax (CxP Plus) to serial


9V wall mount transformer


Temperature: +40░ to 110░ F (+5 to 42░ C)
Relative humidity: 20% to 85%
Optimum: 70░ +/- 15░ F (24░ +/- 8░ C)


6 1/2" x 2 1/8" x 5 1/2" (16,5 x 5,4 x 14 cm)


FCC A; CISPER 22 class A


Ordering Information



Item Number

Host Connection / 
Bar Code Printer Interface
IO-TXPPLUSR TXP Plus - Attaches a Parallel Printer to a 5250 Twinax Host $  595.00
IO-TXSPLUSR TXS Plus - Attaches a Serial Printer to a 5250 Twinax Host $  595.00
IO-CXPPLUSR CXP Plus - Attaches a Parallel Printer to a 3270 Coax Host Call For
IO-CXSPLUSR CXS Plus - Attaches a Serial Printer to a 3270 Coax Host Call For


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