Difference between revisions of "PC04/PC05 High-Speed Paper-Tape Reader/Punch"
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There are a myriad of different versions, particularly in the '04. To start with, there are two generations of each: in the former, input data is strobed during reading by a signal from the stepper motor; the later strobes the data by sensing the feed holes. | There are a myriad of different versions, particularly in the '04. To start with, there are two generations of each: in the former, input data is strobed during reading by a signal from the stepper motor; the later strobes the data by sensing the feed holes. | ||
| − | There are also reader-only and punch-only models: the reader-punch model of the PC04 is the '''PC04B''', the reader-only model is the '''PR04R''', and the punch-only model is the '''PC04P'''; the reader-punch model of the PC05 is the '''PC05C''', the reader-only model is the '''PR05R''', and the punch-only model is the '''PC05P'''. All come in 50Hz and 60Hz versions (which are identical except for the punch pulley). | + | There are also reader-only and punch-only models: the reader-punch model of the PC04 is the '''PC04B''', the reader-only model is the '''PR04R''', and the punch-only model is the '''PC04P'''; the reader-punch model of the PC05 is the '''PC05C''', the reader-only model is the '''PR05R''', and the punch-only model is the '''PC05P'''. All come in 50Hz and 60Hz versions (which are identical except for the punch pulley; so there are no 50Hz versions of the reader-only models). |
Finally, there are different versions of the PC04 for different PDP-8 models (they differ as to which FLIP CHIPs are used, which will be given below): | Finally, there are different versions of the PC04 for different PDP-8 models (they differ as to which FLIP CHIPs are used, which will be given below): | ||
Revision as of 00:34, 5 August 2018
The PC04 and PC05 Paper-Tape Reader/Punches are the DEC-supplied paper tape peripherals for the PDP-8 and PDP-11 respectively (the '05s were also used by the PDP-12 and PDP-15).
The mechanical portions are the same in the '04 and '05, but they differ in the control electronics included in them. Both include an electro-mechanical punch, and a photo-electric reader, which are completely separate, but housed in the same frame, and sharing a power supply.
There is also a backplane to hold the control electronics, in the form of a number of FLIP CHIPs. The backplane in the PC04 has 8 slots; that in the PC05 has 12 slots. (In addition, there is also a controller in the computer.)
Variants
There are a myriad of different versions, particularly in the '04. To start with, there are two generations of each: in the former, input data is strobed during reading by a signal from the stepper motor; the later strobes the data by sensing the feed holes.
There are also reader-only and punch-only models: the reader-punch model of the PC04 is the PC04B, the reader-only model is the PR04R, and the punch-only model is the PC04P; the reader-punch model of the PC05 is the PC05C, the reader-only model is the PR05R, and the punch-only model is the PC05P. All come in 50Hz and 60Hz versions (which are identical except for the punch pulley; so there are no 50Hz versions of the reader-only models).
Finally, there are different versions of the PC04 for different PDP-8 models (they differ as to which FLIP CHIPs are used, which will be given below):
- PC04-B, PC04-C - PDP-8, PDP-8/S (also the KA10)
- PC04-BB - PDP-8/I
- PC04-BL - PDP-8/E, PDP-8/F, PDP-8/L, PDP-8/M
There is also a special version of the reader/punch model for the KI10, the PC04-CL. (The 50Hz versions of all of these differ in the last letter, which is incremented; e.g. the KI10 50Hz version is the -CM.)
