Difference between revisions of "XTS Keyboard/UCM"

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(Model Matrix)
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The above crypto parts are listed in the "Security Policy:Astro Subscriber UCM" Guide.  Some part descriptions are a inference on my part as I've not seen them, they are designated with a '''?'''.  If something is wrong, please update it.
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The above crypto parts are listed in the "[[media:Security Policy UCM 140sp1457.pdf|Security Policy:Astro Subscriber UCM]]" Guide.  Some part descriptions are a inference on my part as I've not seen them, they are designated with a '''?'''.  If something is wrong, please update it.
  
 
It's my understanding any of the UCM's can do any algorithms, they just need to be programed via a KVL3000+ or later keyloader.  
 
It's my understanding any of the UCM's can do any algorithms, they just need to be programed via a KVL3000+ or later keyloader.  

Revision as of 19:46, 14 March 2019

The XTS series have a Universal Crypto Module (UCM) and Keyboard/option board combo. Normally without hardware crypto, they will have the keyboard only option board, and the part numbers vary base on the model type (1.5,2,3).

Model Matrix

XTS2500 Keypads
P/N TYPE Model BackLight Description
0104018J69 1.5 Keypad Bright Motorola Part from Service Manual, no crypto
7585776C02 2 Keypad Bright Motorola Part from Service Manual, no crypto
7585776C01 3 Keypad Bright Motorola Part from Service Manual, no crypto
0104020J49 1.5 Kit, FM Bright This is a listed accessory kit
0104020J50 2 Kit, FM Bright This is a listed accessory kit
0104020J51 3 Kit, FM Bright This is a listed accessory kit
0104024J45 1.5 Unknown Bright 5 Algo, From an eBay auction
0104024J44 2? Unknown Bright Never seen this, inferred as model 2
0104020J51 3 Unknown Bright 5 Algo, From an eBay auction
0104027J01 1.5? US Military Dim Never seen this, inferred as model 1.5 Night Vision
0104025J11 2? US Military DIM Never seen this, inferred as model 2 Night Vision
0104025J12 3 US Military Dim AES only, Night Vision, from a Facebook seller

The above crypto parts are listed in the "Security Policy:Astro Subscriber UCM" Guide. Some part descriptions are a inference on my part as I've not seen them, they are designated with a ?. If something is wrong, please update it.

It's my understanding any of the UCM's can do any algorithms, they just need to be programed via a KVL3000+ or later keyloader.

The different model UCM's are the same, but lacking the Snaptron keys and polyester tape to hold them in. The LED's are missing in the 1.5 version as well, but the dropping resistors are present. This is due to the backlight for the LCD being sourced from the keypad. The CPU will simply tell the Keypad backlight on, and the keypad will take care of the rest.

Note the dim listed parts are for use with night vision, and will appear to be not working in daylight and barely visible at night. I've experimented with these and have reverse engineered a better soultion below.

Modification of Dim to Normal

There are a few UCM boards made for night vision equipment, and I reversed how to make these brighter by studying a couple good boards. It's basically some current limiting resistors and a regulator. In the dim UCM there is an addition of a 5v regulator which powers the LEDs rather than being powered via the B+ voltage of 7.5 volts.