Difference between revisions of "RX50 dual-diskette drive"

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[[Image:rx50.jpg|thumb|right|200px|RX50]]
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{{Infobox Disk drive
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| name = RX50
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| manufacturer = [[Digital Equipment Corporation|DEC]] 
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| capacity = 400 KB (per floppy)
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| transfer rate = 250K bits/sec
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| average access time = 164 msec
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| rpm = 300
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| revolution time = 100 msec
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| one track seek = 6 msec
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<!-- | average seek =
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| maximum seek = -->
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| surfaces = 1 (2 floppies per RX50)
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| number of heads = 1 (per floppy)
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| tracks = 80 (per floppy)
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| sectors = 10 (soft)
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| bytes per sector = 512
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| tracks per inch = 96
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| density = 5576 flux changes/inch
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| recording method = [[Modified Frequency Modulation|MFM]]
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| start time = 500 msec
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| physical size = 3.25" x 5.75" x 8.5"
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| weight = 4.8 lb
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| power consumption = 4.2W (idle)<br>17.5W (active)
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}}
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[[Image:rx50.jpg|thumb|left|200px|RX50]]
 
   
 
   
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5.25" floppy drive, 0.8 MB
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The '''RX50 dual-diskette drive''' is a 5.25" full height [[floppy disk]] drive from [[Digital Equipment Corporation|DEC]]. It uses [[Modified Frequency Modulation|MFM]] encoding, and holds 400 KB per floppy.
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It is supported by the following DEC [[QBUS]] MFM disk controllers:
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* [[RQDX1/RQDX2 MFM Disk & Floppy QBUS Controllers|RQDX1]]
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* [[RQDX1/RQDX2 MFM Disk & Floppy QBUS Controllers|RQDX2]]
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* [[RQDX3 MFM Disk & Floppy QBUS Controller|RQDX3]]
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There are two controllers for other buses:
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* [[RUX50]] for the DEC [[UNIBUS]]
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* [[RCX50]] for the DEC [[CTI BUS]]
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The DEC order number for RX50 floppies is '''RX50K'''.
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==4.3 BSD disktab==
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<pre>
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rx50|RX50|DEC RX50:\
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    :ty=removable:ns#10:nt#1:nc#80:\
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    :pa#800:ba#4096:fa#512:
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</pre>
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{{semi-stub}}
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==External links==
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* [http://bitsavers.org/pdf/dec/disc/rx50/ rx50] - documentation at [[Bitsavers]]
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* [http://bitsavers.org/pdf/dec/rainbow/EK-PC100-TM-001_Rainbow_100_Technical_Manual_May84.pdf Rainbow 100 Technical Manual] (EK-PC100-TM-001) - the RX50 is covered in detail here, in Chapter 6 (pp. 218-255 of the PDF)
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* [http://bitsavers.org/pdf/dec/rainbow/RX50_FAQ.txt Frequently Asked Questions File for RX50 Users]
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* [http://www.vaxarchive.org/hardware/rx50.html The RX50 FAQ]
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* [https://rc.xqwv.org.uk/2014/rx50.html RX50 technology]
  
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{{stub}}
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[[Category: DEC Floppy Disk Drives]]

Latest revision as of 00:16, 13 October 2024


RX50
Manufacturer: DEC
Capacity: 400 KB (per floppy)
Transfer Rate: 250K bits/sec
Average Access Time: 164 msec
Revolutions per Minute: 300
1/2 Revolution Time: 100 msec
One Track Seek Time: 6 msec
Total Surfaces: 1 (2 floppies per RX50)
Number of Heads: 1 (per floppy)
Tracks per Surface: 80 (per floppy)
Sectors per Track: 10 (soft)
Bytes per Sector: 512
Tracks per Inch: 96
Density: 5576 flux changes/inch
Recording Method: MFM
Start Time: 500 msec
Physical Size: 3.25" x 5.75" x 8.5"
Weight: 4.8 lb
Power Consumption: 4.2W (idle)
17.5W (active)


RX50

The RX50 dual-diskette drive is a 5.25" full height floppy disk drive from DEC. It uses MFM encoding, and holds 400 KB per floppy.

It is supported by the following DEC QBUS MFM disk controllers:

There are two controllers for other buses:

The DEC order number for RX50 floppies is RX50K.

4.3 BSD disktab

rx50|RX50|DEC RX50:\
    :ty=removable:ns#10:nt#1:nc#80:\
    :pa#800:ba#4096:fa#512:

External links

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