Tektronix TekXPress XP338
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Revision as of 02:16, 16 January 2005 by Sjlongland (Talk | contribs)
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Tektronix TekXPress XP338
Note: Many of the eratta docs for the listed chips are in PDF format.
System Specifications
- CPU: IDT 79R3052E (MIPS R3000 embedded core. Big endian)
- RAM: 4MB standard, upgradeable to 52MB (mine has 16MB)
- Peripherals:
- 1x Ethernet Port (AUI and UTP) -- AMD AM79C98 Chipset
- 2x Serial Ports -- Philips SCC2692 Dual UART chipset
- 1x "ERGO" Port (Combined Monitor, Keyboard, Mouse -- see below)
- Video Chipset: Texas Instruments 34020 (main chip: TI 34020AGBL-40, RAMDAC: Brooktree BT458LPJ135)
The "ERGO" Port
This port combines the keyboard, mouse and monitor into one single port. The "ERGO Cable" that plugs into this port, provides 3 BNC connectors for the video (this box uses Sync-on-Green like [SGI|ULOS/Hardware/RISC/MIPS/SGI] boxes do), and two PS2 sockets for the keyboard and mouse.
Parts Required:
- 2x PS/2 Sockets: You may be able to purchase these -- I grabbed a dead ATX motherboard and took to it with a hacksaw.
- 1x DB15 female plug.
- 1x VGA 15pin female plug.
- About 30cm of cable (I used some headphone wire for the video signal wires, and a bit of CAT5e for the keyboard & mouse)
The wiring looks like this:
File:Http://www.longlandclan.hopto.org/~stuartl/images/tektronix xp338/ergo cable.png
Notes:
- If you hacked the PS/2 sockets off a motherboard like I did, you might find that the sockets share common Ground and +5V rails. (that is, a tracks connect pin 5 and pin 2 of both sockets together) This is okay.
- If you'd prefer to use BNC connections, then do so. It should be possible to substitute a BNC socket for each pair of connections on the VGA plug.
Links
- Page on AtomicDOC Wiki: [1]
