Editing Marquardt Military Keyboard 7069.3111

{{infobox dkeyboard
| fcc              = 
| pn               = 
| branding         = 
| manufacturer     = [[Marquardt]]
| switch           = [[Marquardt Series 6184]]<ref name="gh-thread-2" />
| switch mount     = [[switch mount|Plate mounted]]
| layouts          = Slightly modified [[ISO]]
| interface        = [[PS/2 interface|PS/2]] for keys, RS232 (1200 Baud) for trackball over a DA-15 D-SUB connector<ref name="gh-thread"/>
| rollover         = [[NKRO]]
| weight           = 3.38 kg
| years            =
| price            =
}}

The '''Marquardt 7069.3111''' is fullsize, plate-mounted keyboard manufactured by [[Marquardt]] for the ''Deutsche Bundeswehr''.

The keyboard was part of the HEROS-System (''Heeresführungs - Informationssystem für die Rechnergestützte Operationsführung in Stäben'') and consisted out of a Digital Equipment DECpc433 mounted inside a EDKA aluminium box. The keyboard itself was attached inside the box top.

The keycaps are [[Cherry_MX|Cherry MX]]-compatible [[Double-shot_molding|double shots]].

The housing is made out of aluminium, with the bottom plate being 2mm and the top being 6mm thick.

==Pinouts==
Even though equipped with a 15 Pin D-Sub connector the keyboard uses ordinary PS2 signalling, therefore it can easily be used on modern PCs. The pin out is as follows<ref name="gh-thread"/>:
{| class="wikitable" border="1"
|-
! PCB connector
! Signal
! D-SUB 
! Cable colour
|-
| Pin 1
| +5V
| Pin 15
| Brown
|-
| Pin 2
| GROUND
| Pin 7, 11, 14
| White
|-
| Pin 3
| KDB_CLK
| Pin 13
| White
|-
| Pin 4
| KDB_DATA
| Pin 12
| Green
|-
| Pin 5
| RS232-MOUSE
| Pin 2
| White
|-
| Pin 6
| Unknown
| Pin 4
| Yellow
|}

The serial signal for the trackball operates at a speed of 1200 Baud. The trackball can be put into operation with the following addition to xorg.conf<ref name="gh-thread"/>:
 <nowiki>
,----[ xorg.conf ]
| Section "InputDevice"
|    Identifier  "heros ball"
|    Driver      "mouse"
|    Option      "CorePointer"
|    Option      "Sensitivity" "2.0"
|    Option      "Device"      "/dev/ttyS0"
|    Option      "Protocol"    "mouse systems"
| EndSection
`----
</nowiki>

==Gallery==
<gallery widths=250 heights=187>
File:marquardt_military_keyboard_7069-3111_topview.jpg                 | Top view
File:marquardt_military_keyboard_7069-3111_topview2.jpg                | Top view
File:marquardt_military_keyboard_7069-3111_numberpad.jpg               | Numeric keypad
File:marquardt_military_keyboard_7069-3111_trackball_and_arrowkeys.jpg | Trackball and arrow keys
File:marquardt_military_keyboard_7069-3111_keys.jpg                    | Keys
File:marquardt_military_keyboard_7069-3111_modifier.jpg                | Modifier
File:marquardt_military_keyboard_7069-3111_label.jpg                   | Label
File:marquardt_military_keyboard_7069-3111_bottomplate.jpg             | Bottom plate
File:marquardt_military_keyboard_7069-3111_bottomplate_removed.jpg     | Bottom plate removed
File:marquardt_military_keyboard_7069-3111_housing_sealing.jpg         | Metal sealing at housing
File:marquardt_military_keyboard_7069-3111_pcb.jpg                     | Marquardt label on PCB
File:marquardt_military_keyboard_7069-3111_trackball.jpg               | Trackball with ball bearings
File:marquardt_military_keyboard_7069-3111_cable_attachment.jpg        | Cable attachment inside housing
File:marquardt_military_keyboard_7069-3111_housing.jpg                 | Housing with PCB removed
File:marquardt_military_keyboard_7069-3111_housing_thickness.jpg       | Thickness of housing
File:marquardt_military_keyboard_7069-3111_switch_3.jpg                | Switch at 3 key, usage unknown
File:marquardt_military_keyboard_7069-3111_pcb_topview_01.jpg          | PCB top view
File:marquardt_military_keyboard_7069-3111_pcb_topview_02.jpg          | PCB top view
File:marquardt_military_keyboard_7069-3111_pcb_topview_03.jpg          | PCB top view
</gallery>

==References==
<references>
<ref name="gh-thread">Geekhack - [http://geekhack.org/index.php?topic=8016.msg141500 Rugged military keyboard by Marquardt]</ref>
<ref name="gh-thread-2">Geekhack - [https://geekhack.org/index.php?topic=33130.msg878365#msg878365 What did you get in the mail today?] (page 145, post 7233)</ref>
</references>

[[Category:Marquardt_keyboards]]
[[Category:Keyboards_with_Marquardt_switches]]
[[Category:Keyboards with integrated pointing device]]
[[Category:List_of_all_keyboards]]