5494 Remote Control Unit
Local copy of uCode, Release Patches, Feature
Patches (before IBM cleanses the site!)
You will need a 2.88MB floppy to extract some of these!
3.2 Microcode Diskettes
3.2 Feature Patches
Remote Control Unit R3.2 Bookshelf
5494 Memory (56 pin simms!!!)
5494 Operator Panel PCB
|P1 30 pin header, unk
P5-8 16 bit slots
P10 SIMM2 56 pins!
P11 SIMM1 56 pins!
P12 Floppy Header
P13 Operator panel
P14 Fan power
P15 Power / LEDs
P16-17 Contacts for power plugs
S1 14.318 MHz osc
S2 32.00000 MHz osc
S3 24.00000 MHz osc
U21 DS1287 RTC
U77 Firmware 03F0312
U78 Firmware 03F0313
U79 intel 71F7834 (resembles 82077)
U84 DS1225AD-170 NVRAM
2MB ECC?? SIMM,
These use a 56 pin SIMM.
Individual memory modules are 02G2871
Panel Controller Board
P2 LCD Panel
P3 Header to planar
|P4 Tape connector to keypad
U4 intel 02F9476
Y1 8.000 MHz xtal
P13 Operator Panel Controller Pinout
2 Operator Panel Reset
4 Transmit Data
6 Planar Reset
|8 Recieve Data
12 Speaker Data
5494 Power Supply
Uses a 90 form factor PSU, but wimpier
Input 100-240v 1.6 - 0.78A 50 / 60 hz
Output 63.8 Watts
Uses an NMB Boxer fan, 3610NL-04W-B10 12v, 0.13A ball bearings, brushless
5494 Operator Panel Components
The operator panel is located on the right-hand front
side of the 5494 and consists of a keypad, an LCD, and four LEDs (Ready,
Call 5494 Service, See PD Guide, and Test Mode) that indicate operating
status. An 8051 microprocessor controls the LCD, LEDs, and the keypad.
Communications between the planar and the operator panel are through a
The LCD has 16 character positions. It is blank and displays
a cursor in the rightmost position when not in use. When the 5494 operator
panel is in use, there will always be a message code (002-01 in the above
example) displayed on the left-hand side of the LCD. The message codes
are described in "Message Codes" in topic 3.1. When the 5494 is in use,
the LCD can also contain, in the data field on the right-hand side of the
LCD, a system reference code (SRC) or information as defined by the message
code. In the example, the data field contains an SRC.
If an error occurs before or during normal operation, both
a message code and an SRC will be displayed on the LCD and an LED will
be lit. If more than one error occurs during normal operation, the message
codes and SRCs will cycle at 3-second intervals. If the error clears (a
link is established after a failure, for example), the message code and
SRC will be removed from the LCD by the 5494.
Normal Power-On Display Sequence
Soon after the 5494 power pushbutton is set to ON (|):
1. All LEDs are ON for 1 second.
2. All LEDs are OFF for 1 second.
3. The Test Mode LED is switched ON.
4. 001-01 is displayed, indicating that POST is
5. The date and time are displayed on the LCD.
6. The microcode is loaded.
7. The Test Mode LED is switched OFF.
8. Within 10 seconds, the Ready LED is switched ON
The keys on the keypad allow commands to be entered and sent to the
5494, and include:
REQ Initiates a request function
PF1 Used for special requests
PF2 Used for special requests
Esc Used to cancel a request
Alt Enables the alternate hexadecimal
values of keys 4 through 9, to be used with keys PF1, PF2, and Esc for
additional special functions. (Ed.
Might be the SHFT key)
Enter Signals to the 5494 the end
of an input string
Clear Clears a value being
entered and allows you to begin again
0 to 9 Numerics 0 to 9
Alt+4 Hexadecimal A
Alt+5 Hexadecimal B
Alt+6 Hexadecimal C
Alt+7 Hexadecimal D
Alt+8 Hexadecimal E
Alt+9 Hexadecimal F
Up arrow Scroll up through several
choices or panels of data
Down arrow Scroll down through
several choices or panels of data
Left arrow Move the cursor left
or scroll to additional fields of data
Right arrow Move the cursor right
or scroll to additional fields of data.
If you hose the refstamp, the 5494 will not boot up and
the error code '003-04 1' is displayed on the Op Panel.
Model 001 or Model 002 to Model EXT. Model 001 and Model 002 can be
made functionally equivalent to Model EXT by installing level 3.0 microcode
Cables For 5494
72X5645 Cable Asm,Twinaxial Workstation Adapter (Ports 0-3)
03F0386 Cable Asm,Twinaxial Workstation Adapter (Ports 4-7)
Note: The Twinaxial Workstation Attachment cable connected to the slot
with the lowest number supports twinaxial ports 0--3. The Twinaxial
Expansion Adapter, if installed, supports twinaxial ports 4--7.
9595 Main Page