HP 21MX E-series front panel keyboards

[Bob Shannon]

The MPP ports are used in several applications for E series CPUs as well.

----- Original Message ----- 
From: "Jay West" <jwest at classiccmp.org>
To: "Glen Slick" <glen.slick at gmail.com>; "General Discussion: On-Topic and 
Off-Topic Posts" <cctalk at classiccmp.org>
Sent: Wednesday, January 26, 2005 10:26 PM
Subject: Re: HP 21MX E-series front panel keyboards


> Isn't the "tall" front panel board primarily different because it includes 
> a connector to go to the MPP port on the cpu? I'm not real up on that, but 
> I think it was only used on the F series, and used to provide high speed 
> memory access to an external device? Something like that sticks in my 
> head.
>
> Jay
> ----- Original Message ----- 
> From: "Glen Slick" <glen.slick at gmail.com>
> To: "General Discussion: On-Topic and Off-Topic Posts" 
> <cctalk at classiccmp.org>
> Sent: Wednesday, January 26, 2005 7:08 PM
> Subject: Re: HP 21MX E-series front panel keyboards
>
>
>> Take a look at this doc:
>>
>> http://www.bitsavers.org/pdf/hp/1000/1000_MEF_EngrRef/
>> 92851-90001_Mar81_8.pdf
>>
>> There are drawings of a shorter 2105/08/12 front panel PCA 5060-8343
>> and a taller 2019/11/13/17 front panel PCA 5061-1343.
>>
>> Does that help at all?
>>
>>
>> On Wed, 26 Jan 2005 17:56:03 +0000, Peter Brown
>> <peterbrown10 at hotmail.com> wrote:
>>> Hi All,
>>>
>>> How many types of front panel keyboard were used with the 2113 E-series 
>>> CPU?
>>>
>>> I have one in front of me that has two ribbon cables that run from the
>>> keyboard PCB to the CPU PCB (one from the top edge of the keyboard PCB 
>>> one
>>> from the bottom edge) but I seem to remember having seen other 2113 
>>> CPU's
>>> where the keybaord PCB is smaller and a single cable runs from the 
>>> bottom
>>> edge of the keyboard to the CPU PCB.
>>
>>
>
>
>