Ardent Tool of Capitalism

5494 Planar

192-037 IBM 5494 Remote Control Unit

IBM 5494 Remote Control Unit Brochure
CO2V4002 5494 Maintenance Information

5494 Remote Control Unit User's Guide Rel. 3.0 (GA27-3960-03, 4th Ed., Nov 1994)
5494 Remote Control Unit Functions Reference Rel. 2.0 (SC30-3533-02, 3rd Ed., Nov 1993)
5494 Remote Control Unit Functions Reference Rel. 3.1 (SC30-3533-04, 5th Ed., Aug 1995)
   Documentation sourced from bitsavers.org

5494 Remote Control Unit Planning Guide Rel. 3.2 (GA27-3936-05, 6th Ed., Oct 1996)
5494 Remote Control Unit Quick Reference Rel. 3.2 (GA27-3909-05, 6th Ed., Nov 1996)
5494 Remote Control Unit Users Guide Rel. 3.2 (GA27-3960-05, 6th Ed., Nov 1996)
5494 Remote Control Unit Functions Reference Rel. 3.1 (SC30-3533-04, 5th Ed., Aug 1995)
5494 Remote Control Unit Maintenance Information Rel. 3.2 (SY27-0327-05, 6th Ed., Nov 1996)
   MHTML format (doesn't load correctly? use IE). Sourced from archive.org

Configuring 5494 Remote Control Units
Related Redbooks (DEAD)
Remote Control Unit R3.2 Bookshelf (DEAD)

5494 Planar
   P12 Floppy Controller Header Pinout
   P13 Operator Panel Controller Pinout
   P15 Speaker/Switch Assembly Pinout
System Firmware
   ROM Images
Memory (56-pin SIMMs!)
Known Problems
   SRC F8F556 (H121724)

5494 Planar

03F0330

Most of the ASIC/GA are the same with the Model 55 SX planar and/or various other PS/2 boards.

P12 Floppy Controller Header Pinout

P13 Operator Panel Controller Pinout

P15 Speaker/Switch Assembly Pinout

System Firmware (POST & BIOS)

Firmware stored in EPROM.

ROM Images

03F0312 / 03F0313 - 28 Jan 1992, rev. 19h, 2x 27C512 (U77 / U78)

Note: Unusually, the ROM images have non-zero checksums (two different systems were dumped using two different setups, with the same result).

Memory

2MB ECC?? 56-pin SIMM.

53F7913, individual memory modules are 02G2871.

Note: The second stick ("5494 Memory Expansion Feature") must be installed in order to use the Frame Relay Token-Ring Bridge feature (and possibly for some other functionality as well).

Known Problems

SRC F8F556 (H121724)

Symptom SRC F8F556

SRC F8F556 is a known problem with the Vimercate produced planars. The way to identify Vimercate planars is: near the SIMM there is a label with bars. In this label you can find the P/N 02F9524 and just before it exists a sequence of letters and numbers. If this sequence starts with "WI" this planar comes from Vimercate. Everything else comes from Mechanicsburg. Example: WIJA0890187 02F9524 253

Note: SRC F8F556 Can also be caused by a defected twinaxial adapter card. There is about a 15% probability that the twinax adapter card is the source of the problem.

Problem Isolation Aids

None.

Fix

Replace the planar. If that does not fix it, replace the twinax adapter card.

The planar is most likely your problem so replace it first.