Nixdorf CT22
 | |
| Part number | 1129HA (base) |
|---|---|
| Branding |
Nixdorf Siemens Nixdorf[1] |
| Manufacturer | Cherry |
| Layouts | ISO, quite likely ANSI too |
| Keyswitches |
Cherry MX Black Cherry MX Linear Grey (spacebar) |
| Keycaps | Double-shot |
| Interface | AT |
| Rollover |
NKRO over AT / PS/2 6KRO over USB (with adapter) |
| Years of production | 1989 |
Nixdorf CT22 is a rebranded keyboard from the Cherry G80-1000 series. Base product number is 1129HA.
Keycaps are double-shot with slightly darker coloring than the typical gray Cherry modifiers. The CT22 supports N-key rollover through AT/PS2 and 6-key rollover through an USB adapter. It features PCB mounted Cherry MX Black switches on all keys, except the spacebar which is a Cherry MX Linear Grey switch with ~20g heavier actuation than the Black switches. All switches are paired with diodes to allow NKRO. Under the "Nixdorf Computer" logo there are the typical green status LEDs.
The only known production date of this keyboard is 1989.
Variants
Documented layouts of the board include:
- HAD (German layout, ISO)
- HAE (Spanish layout, ISO)
- HAF (French layout, ISO)[2]
Gallery
HAD version
Back of keyboard / label
Production date of case (7th month of 89)
PCB
PCB mount switches with diodes on 1129 PCB
Closeup of PCB
Closeup / PCB labels
Closeup of switch with diode
HAE version
Overview
Back label with barely visible aftermarkings
Branding
Left hand side
Right hand side
Comparison with stock Cherry G80-1000
Cherry MX Black switch
Double-shot keycaps
PCB underside
PCB branding
Mold markings
Mold datestamp
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_-_back_label.jpg)
_-_branding.jpg)
_-_closeup_left_hand_side.jpg)
_-_closeup_right_hand_side.jpg)
_-_G80-1000_comparison.jpg)
_-_switch.jpg)
_-_keycap_underside.jpg)
_-_back_of_PCB.jpg)
_-_PCB_branding.jpg)
_-_mold_markings.jpg)
_-_mold_datestamp.jpg)
References
- ↑ Reddit — I found a CT22 Siemens Nixdorf but find no Infos about it. Do you know more? by drjonase. Posted 2021-10-09. Retrieved 2024-05-14.
- ↑ Leboncoin — Clavier vintage Nixdorf CT22 des années 80 (French) [Volatile reference] Last updated 2024-05-06. Retrieved 2024-05-14.
