Difference between revisions of "KM11-A Maintenance Set"
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==External links== | ==External links== | ||
| − | * [http://www.bitsavers.org/pdf/dec/pdp11/1140/PDP-1140_System_Engr_Drawings_Rev_P_Jun74.pdf PDP-11/40 system engineering drawings] - the KM11 is covered on pp. 123-125 | + | * [http://www.bitsavers.org/pdf/dec/pdp11/1140/PDP-1140_System_Engr_Drawings_Rev_P_Jun74.pdf PDP-11/40 system engineering drawings] - the KM11 is covered on pp. 123-125 <!-- |
| − | * [http://www.psych.usyd.edu.au/pdp-11/maint_panel.html Maintenance Control Panel] - DEC's original | + | * [http://www.psych.usyd.edu.au/pdp-11/maint_panel.html Maintenance Control Panel] --> |
| − | * [http://www.shiresoft.com/products/km11/KM11%20Replica.html KM11 Replica] - Guy Sotomayor | + | * [https://www.pdp-11.nl/testtools/km11-info.html Maintenance Board Set] - DEC's original |
| − | * [http://www.ubanproductions.com/museum.html Replacement KM11 maintenance board] - Tom Uban | + | * Replacements |
| − | * [http://www.ubanproductions.com/km11x.html How to build a clone of the DEC KM11 maintenance module] - | + | ** [http://www.shiresoft.com/products/km11/KM11%20Replica.html KM11 Replica] - Guy Sotomayor |
| − | * [http://retrocmp.com/tools/dec-km11-maintenance-panel DEC KM11] - Jörg Hoppe | + | ** [http://www.ubanproductions.com/museum.html Replacement KM11 maintenance board] - Tom Uban |
| + | ** [http://www.ubanproductions.com/km11x.html How to build a clone of the DEC KM11 maintenance module] - Tony Duell | ||
| + | ** [http://retrocmp.com/tools/dec-km11-maintenance-panel DEC KM11] - Jörg Hoppe | ||
[[Category: PDP-11s]] | [[Category: PDP-11s]] | ||
Latest revision as of 17:49, 27 February 2023
The KM11-A Maintenance Set (also variously called the KM11-A Maintenance Panel, KM11-A Maintenance Console and KM11-A Maintenance Cards in some later DEC manuals) is a device used to perform maintenance activities on early PDP-11 CPUs and some early PDP-11 peripherals.
As produced by DEC, a KM11 consists of a W131 Maintenance Indicator Module plugged into a W130 Maintenance Connector Module; later a W131 and a W133 Driver Module. The W131 contains an array of 28 lights, three double-throw switches, and a single spring-loaded double-throw switch.
Overlays
A variety of overlays, specific to a CPU or peripheral, indicate the meaning of the lights, and the function of the switches, when used with that CPU or peripheral.
The CPUs which can use the KM11-A, and for which overays exist, are:
Devices which support the KM11-A, and for which overays exist, are:
There is also reportedly an overlay for the KE11-A Extended Arithmetic Element, but although several KE11-A documents refer to it, no image of it can be found.
Replicas
The original DEC KM11-A's are incredibly scarce, but they are also a very powerful diagnostic tool. So, there have been several different projects to produce replicas; see the links below.
External links
- PDP-11/40 system engineering drawings - the KM11 is covered on pp. 123-125
- Maintenance Board Set - DEC's original
- Replacements
- KM11 Replica - Guy Sotomayor
- Replacement KM11 maintenance board - Tom Uban
- How to build a clone of the DEC KM11 maintenance module - Tony Duell
- DEC KM11 - Jörg Hoppe
