Editing Telex 270 Keyboards

{{Stub}}
{{infobox dkeyboard
| image name   = Telex 270 Top Front.jpeg
| model        = 
| fcc          = None
| branding     = [[Telex Corporation#Telex Computer Products Inc | Telex Computer Products Inc]]
| family       = 
| manufacturer = [[Telex Corporation#Telex Computer Products Inc | Telex Computer Products Inc]]
| switch       = [[Micro Switch SD Series]]
| layouts      = [[Physical keyboard layout#IBM 3276/3278| 3278]]
| interface    = Parallel 
| keycaps      = [[Double-shot_molding|Double-shot]]
| weight       = 
| years        =
| price        = 
}}

The "'''Telex 270 Keyboards'''" refers to a range of terminal keyboards used with the [[Telex Terminal Communications]] 270 terminal family; a clone of the IBM 3270 terminal family. These keyboards use [[Micro Switch SD Series]] hall effect switches and [[Double-shot_molding|double-shot]] keycaps.

==Description==

The Telex 270 Information Display System is a line of terminals that are software and hardware compatible with the IBM 3270 family. The styling of the displays and keyboards followed that of their IBM counterparts. The 270 was designed as a lower cost solution. The keyboards achieved lower cost by using plastic case materials and [[Micro Switch SD Series]] switches. 

==Variants==
Telex documentation indicates several keyboards were available with the different terminals in the 270 family. These included:<ref name="variant-list" />

'''For 276-2/-10'''
* EBCDIC Typewriter w/ 24 PF Keys
* EBCDIC Data Entry
* EBCDIC Data Entry w/ Keypunch layout
* EBCDIC Typewriter w/ Numeric Pad
* EBCDIC Typewriter w/ Function Pad

'''For 275-2'''
* EBCDIC Data Entry
* EBCDIC/ASCII w/ Numeric Pad
* EBCDIC Data Entry w/ Keypunch Layout
* EBCDIC/ASCII w/ Function Pad
* Operator Console or Check Processing
* Upper/lower Case Character Set

'''For 277D''' 
* EBCDIC Data Entry
* EBCDIC Data Entry w/ Keypunch Layout
* EBCDIC Typewriter w/ Numeric Pad
* EBCDIC Typewriter w/ Numeric Pad and 12 PF Keys
* EBCDIC Typewriter w/ Program Function Keys
* Operator Console or Check Processing
* ASCII Typewriter w/ Numeric Pad
* ASCII Typewriter w/ Function Pad

'''For 278-1/-2/-3/-4/-5'''
* EBCDIC Typewriter w/ 24 Program Function Keys
* EBCDIC Typewriter w/ 12 Program Function Keys
* EBCDIC Data Entry
* EBCDIC Data Entry w/ Keypunch layout
* EBCDIC Typewriter w/ Numeric Pad
* ASCII Typewriter w/ 12 Function Keys
* ASCII Typewriter w/ Numeric Pad

==Gallery==

===278 Typewriter with Numeric Pad===
====PN: 952003-222====
The switches used are:

{| class="wikitable variants-table"
! Image !! Code !! Type !! Usage
|-
| [[File:Telex-270-4B3E-Switch-Alone.jpg|100px]] || 4B3E || Momentary stepped 2.5 oz 3-pin || All keys except space and numeric keypad zero 
|-
| [[File:Telex-270-6B1D-Switch-Alone.jpg|100px]] || 6B1D || Support (stepped) 1.1 oz dummy || Numeric keypad zero stabiliser (no keystem)
|-
| [[File:Telex-270-4B1E-Switch-Alone.jpg|100px]] || 4B1E || Momentary stepped 1.1 oz 3-pin || Space bar, right-hand end
|-
| [[File:Telex-270-4B1D-Switch-Alone.jpg|100px]] || 4B1D || Momentary stepped 1.1 oz dummy || Space bar, left-hand end
|}

<gallery widths=250 heights=167>
File:Telex 270 Top Front.jpeg
File:Telex-270-Front.JPG
File:Telex-270-Front-Left-Corner.JPG
File:Telex-270-Rear-Top.JPG
File:Telex-270-Right-Side.JPG 
File:Telex-270-Rear-Left-Corner.JPG
File:Telex-270-Rear-Cover.JPG
File:Telex-270-Nameplate.JPG
File:Telex-270-Connector-1.JPG
File:Telex-270-Connector-2.JPG
File:Telex-270-Connector-3.JPG
File:Telex-270-ATTN-Keycaps.JPG
File:Telex-270-PF1-Closeup.JPG
File:Telex-270-Uniform-Caps-3.JPG
File:Telex-270-Uniform-Caps-2.JPG
File:Telex-270-Uniform=Caps-1.JPG
File:Telex-270-Sculpted-Caps-3.JPG
File:Telex-270-Sculpted-Caps-1.JPG
File:Telex-270-Sclupted-Caps-2.JPG
File:Telex-270-Top-No-Cover.JPG
File:Telex-270-No-Cover-Front-Mat.JPG
File:Telex-270-Dust-Sheild-Label.JPG
File:Telex-270-No-Cover-Front.JPG
File:Telex-270-No-Cover-Right-Side.JPG
File:Telex-270-No-cover-Right-Front-Corner.JPG
File:Telex-270-No-Cover-Left-Side.JPG
File:Telex-270-No-Cover-Left-Front-Corner.JPG
File:Telex-270-No-Cover-Rear.JPG
File:Telex-270-Clicker-Solenoid.JPG
File:Telex-270-PCB-Label-2.JPG
File:Telex-270-PCB-Label.JPG
File:Telex-270-PCB-Connector.JPG
File:Telex-270-Dip-Switch.JPG
File:Telex-270-Spacebar-Stab-Up.JPG
File:Telex-270-Spacebar-Stab-Down.JPG
File:Telex-270-Spacebar-Stab-3.JPG
File:Telex-270-Spacebar-Stab-2.JPG
File:Telex-270-Spacebar-Stab-4.JPG
File:Telex-270-Spacebar-Stab-1.JPG
File:Telex-270-6B1D-Switch.JPG
File:Telex-270-4B1E-Spacbar-Switch.JPG
File:Telex 270 4B1D Spacebar Support Switch.jpeg‎
File:Telex 270 Bottom cover inside.JPG 
File:Telex-270-Top-Cover-Inside.JPG
</gallery>

==External links==
*1000 BiT — [http://www.1000bit.it/ad/bro/telex/TelexProducts.pdf Telex Computer Products Brochure]

==References==
<references>
<ref name="variant-list">bitsavers — [http://bitsavers.trailing-edge.com/pdf/datapro/alphanumeric_terminals/Datapro_C25_Telex.pdf Telex 270 Information Display System]</ref>
</references>

[[Category:Telex keyboards]]
[[Category:Keyboards with Micro Switch SD switches]]
[[Category:Micro Switch OEM keyboards]]