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HP X-Terminals

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Hewlett Packard built a line of X-Terminals in the early- to mid-1990s, including the 700/X and 700/RX, Envizex and Entria, and the Envizex II and Entria II, which were often sold alongside PA-RISC-based HP 9000 Unix systems. The primary use case was connecting several graphical consoles to a single server or workstation to allow multiple users access the same (expensive) processing system from (more inexpensive) terminal systems These X-Terminals all allowed high-resolution, color-graphics access to the main server from which they downloaded their operating system and necessary program files. All models featured limited expandability, in most cases additional I/O options for peripherals and memory for more programs or local storage. HP did not use its own PA-RISC platform for these systems, the first design used an Intel CISC processor, while all later systems used RISC platforms, first Intel i960 and later the popular MIPS.

These 1990s X-Terminals, together with offerings from many other vendors from that time, were early implementations or precursors to the now again popular concept of Thin computing — small dumb front-end systems for I/O and a larger processing system as backend, shared by many concurrent users.

700/X

These were the first X-Terminals HP produced, featuring a similar case to that of some HP 9000/300 (Motorola 68000-based) workstations. They were driven by a pretty obscure CPU combination, an Intel 186 with a TI DSP as video coprocessor.

  • CPU: 16MHz Intel 80186 with a 60MHz Texas Instruments DSP as video processor
  • RAM: 1MB onboard, 9MB maximum; one slot takes up to 8MB modules of unknown type
  • Video RAM: Unknown
  • Maximum video resolution/color-depth: 1024×768/8-bit
  • I/O connectors: RS232 serial, HIL and two PS/2 for keyboard/mouse devices, AUI and BNC 10Mbit Ethernet connectors and VGA video connector
  • Expansion: Unknown

700/RX

HP 700/RX C2708B

These are the direct successors to the 700/X line of X-Terminals and changed the architecture significantly. They were the first in a line of terminals to be driven by an Intel i960 RISC CPU and introduced a case which also was used on later systems. They have a (albeit very quiet) fan.

Several submodels were available, featuring different video-options:

  • 16Ca: 1MB Video RAM, max. 1028×768 resolution, 8-bit color-depth
  • 19Ca: 2MB Video RAM, max. 1280×1024 resolution, 8-bit color-depth
  • 14Ci/16Ci/17Ci: 1MB Video RAM, max. 1028×768 resolution, 8-bit color-depth
  • 19Mi: 0.2MB Video RAM, max. 1280×1024 resolution, monographics

All models have these base features in common:

  • CPU: 22MHz Intel i960CA with 1KB instruction cache
  • RAM: 2MB onboard, 34MB maximum; two slots take each up to 16MB 72-pin non-parity SIMMs
  • I/O connectors: RS232 serial, HIL and two PS/2 for keyboard/mouse devices, parallel for printer, AUI and BNC 10Mbit Ethernet and VGA video connector
  • Expansion: slot for a Boot-ROM cartridge

Entria

The Entrias were the low-cost line of X-Terminals, featuring the same architecture as the 700/RX terminals, but in a plastic case the same style as the HP 9000/712 workstation. They are very small and quiet.

The Entrias were available in different video configurations, depending on the exact model:

  • 0.6MB Video RAM: max. resolution of 1024×768 with grayscale graphics
  • 1MB Video RAM: max. resolution of 1024×768 with 8-bit color depth
  • 2MB Video RAM: max. resolution of 1280×1024 with 8-bit color depth

Common:

  • CPU: Intel i960CA with 1KB instruction cache
  • RAM: 4MB onboard, 68MB maximum; two slots take each up to 32MB 72-pin non-parity SIMMs
  • I/O connectors: RS232 serial, two PS/2 for keyboard/mouse devices, parallel for printer, TP and BNC 10Mbit Ethernet and VGA video connector
  • Expansion: none

Envizex

The Envizex were the successors to the 700/RX terminals, featuring the same flat pizzabox case and a slightly modified architecture with a faster version of the Intel i960 RISC CPU. They have a (very quiet) fan inside.

Three different series were available which featured different speeds of the CPU:

  • i SERIES: 25MHz Intel i960CF with 4KB instruction and 1KB data cache
  • a SERIES: 28MHz Intel i960CF with 4KB instruction and 1KB data cache
  • p SERIES: 33MHz Intel i960CF with 4KB instruction and 1KB data cache

Common aspects:

  • RAM: a and i SERIES: 4MB onboard, 132MB maximum; four slots take each up to 32MB 72-pin non-parity SIMMs. p SERIES: 6MB onboard, 102MB maximum; three slots take each up to 32MB 72-pin non-parity SIMMs
  • Video RAM: 2MB
  • Maximum video resolution/color-depth: 1280×1024 (i SERIES might do only 1024×768) 8-bit
  • I/O connectors: two RS232 serial, HIL and two PS/2 for keyboard/mouse devices, parallel for printer, TP, AUI and BNC 10Mbit Ethernet and VGA video connector
  • Expansion: They offer a range of expansion options:
    • 3.5″ PC floppy drive
    • CD-quality audio support
    • Either one of the following three cards:
    • They also have two PCMCIA sockets for:
      • Boot-ROM card
      • SRAM cards which contain fonts or a local copy of the X server (no network download necessary)

Entria II

These were the successors of the low-cost Entria X-Terminals, keeping their HP 9000/712-style small footprint plastic case. The system architecture was changed completely and is shared with the later Envizex II terminals. It is based around a NEC R4300 CPU and PCI-based I/O devices.

  • CPU: 100MHz NEC R4300
  • RAM: 64MB maximum; two slots take each up to 32MB 168-pin DIMMs (PC66/100/133 DIMMs in different sizes can be used, but only 8MB of each module will be available; the larger modules (16 and 32MB) were HP-proprietary)
  • Video RAM: 2MB
  • Maximum video resolution/color-depth: 1280×1024/8-bit
  • I/O connectors: RS232 serial, two PS/2 for keyboard/mouse devices, parallel for printer, TP Ethernet (probably 10Mbit) connector and VGA video connector
  • Expansion: none

Envizex II

These are the bigger brothers of the Entria II X-Terminals, driven by the same R4300 MIPS CPU and PCI I/O architecture. The case was redesigned, is very easy to open and does not have any fans, making the terminal rather quiet.

  • CPU: 133MHz NEC R4300
  • RAM: 96MB maximum; three slots take each up to 32MB 168-pin DIMMs (PC66/100/133 DIMMs in different sizes can be used, but only 8MB of each module will be available; the larger modules (16 and 32MB) were also HP-proprietary)
  • Video RAM: 2 or 4MB VSIMM
  • Video chipset: ATI Mach64
  • Maximum video resolution/color-depth: 1600×1200/16-bit
  • I/O connectors: two RS232 serial, two PS/2 and USB for keyboard/mouse devices, TP Ethernet connector and EVC video connector (requires an adapter-cable to use standard VGA monitors)
  • Expansion:
    • 3.5″ PC floppy drive
    • Audio Kit with telephone I/O
    • Flash DIMMs card for booting and storing configuration and font files
    • 100VG AnyLan PCI card
    • 100Mbit Ethernet PCI card
    • Combined BNC and AUI card (expands the onboard NIC)

Software

These X-Terminals/stations run a proprietary operating system from HP — Netstation, formerly Enware, with some versions apparently based on VxWorks (probably those with RISC support].

This software runs on theoretically any Unix system, native support is available for HP-UX 10, HP-UX 11, IBM AIX and Solaris 2.x. A generic installation image is provided for other Unix flavors; this can be used to install the software via the provided installation shell script on for instance various Linux or BSD flavors.

Netstation Version 7.1

The older Enware/Netstation Version 7.1, HP product B.07.11, supports the following i960-based Terminals:

  • 700/RX
  • Entria
  • Envizex

It was downloadable from a public HP FTP service (hprc.external.hp.com/B.07.11/), which however was apparently discontinued.[1]

Read the included documentation/technical reference and refer to the installation instructions. Generally, an Unix server is needed from which the station can boot its kernel and load its X server. This is done via TFTP; the station can be managed local via a configuration screen or remotely on the server via customizable configuration files.

Netstation Version 9.0

The most current available Netstation version is 9.0, HP product B.09.11. This version supports the newer MIPS-based X-Terminals:

  • Entria II
  • Envizex II

Same as with the older Netstation software, version 9.0 was available from a HP FTP service, which was discontinued. (See above)

The newer X-Terminals (IIs) can boot in different ways, over a NFS mount, a SMB share or plain TFTP. Included in the Netstation software is a native Java environment which makes execution of local Java applets on the terminal possible.

Notes

  1. ^ Last tested September 2008.

References

  • This page was originally contributed by the original author from OpenPA.net.
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