Difference between revisions of "RL02 disk drive"

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m (Jnc moved page RL02 to RL02 disk drive: Canonical naming system)
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| name = RL02
 
| name = RL02
 
| manufacturer = [[Digital Equipment Corporation]]  
 
| manufacturer = [[Digital Equipment Corporation]]  
|}}
+
| controller = [[RL11 disk controller|RL11]] ([[UNIBUS]])
 +
| capacity = 10.4 Mbytes (formatted)
 +
| transfer rate = 512 Kbytes/sec<br>3.9 usec/word (peak)
 +
| average access time = 67.5 msec
 +
| rpm = 2400
 +
| revolution time = 12.5 msec
 +
| one track seek = 15 msec
 +
| average seek = 55 msec
 +
| maximum seek = 100 msec
 +
| head switch = 8 msec (maximum)
 +
| surfaces = 2
 +
| tracks = 512
 +
| sectors = 40
 +
| words per sector = 128
 +
| tracks per inch = 250
 +
| density = 3725 bpi (maximum)
 +
| recording method = [[Modified Frequence Modulation]] (MFM)
 +
| start time = 40 seconds
 +
| stop time = 30 seconds
 +
| physical size = 19" W x 10-1/2" H x 25" L
 +
| weight = 55 pounds
 +
| power consumption = 160VA (running); 550 VA (starting, 10 seconds)
 +
}}
  
 +
[[Image:rl02drive.jpg|thumb|left|An RL02 drive]]
  
[[Image:Rl02.jpg|thumb|A RL02 cartridge.]]
+
The RL02 is the high-density version of the [[RL01 disk drive|RL01]] [[disk|disk drive]], with twice as many tracks per surface, introduced in 1978 by [[Digital Equipment Corporation|DEC]].
[[Image:rl02drive.jpg|thumb|RL02 drive.]]
 
  
 +
The [[QBUS]] controllers are the [[RLV11]] and [[RLV12]], the latter being the [[QBUS|Q22]] version.
  
 
+
==4.3 BSD disktab==
The RL02 is a 10MiB, single platter, removable cartridge drive introduced in 1978 by [[Digital Equipment Corporation]].
 
 
 
Its 22-bit [[QBUS]] controller is the [[RLV11]],[[RLV12]]
 
 
 
Its [[UNIBUS]] controller is the [[RL11]]
 
 
 
Its lower-end cousin is the [[RL01]].
 
 
 
10.4 MB disk cartridge drive, the enhanced version of the [[RL01]]
 
 
 
= 4.3 BSD disktab =
 
 
<pre>
 
<pre>
 
rb02|RB02|DEC RL02 on 730 IDC:\
 
rb02|RB02|DEC RL02 on 730 IDC:\
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==Emulating the RL02==
 
==Emulating the RL02==
 +
 +
[[Image:Rl02.jpg|thumb|right|An RL02 cartridge]]
 +
 
Reinhard Heuberger has created an open source emulator for the RL02 (and RL01) using a Terasic DE0-Nano Altera Cyclone IV FPGA board, extended with necessary interfacing hardware and an SD card slot. The emulator can be used with a real PDP-11, for example.
 
Reinhard Heuberger has created an open source emulator for the RL02 (and RL01) using a Terasic DE0-Nano Altera Cyclone IV FPGA board, extended with necessary interfacing hardware and an SD card slot. The emulator can be used with a real PDP-11, for example.
 
  * [http://www.pdp11gy.com/doneE.html Home page of project]
 
  * [http://www.pdp11gy.com/doneE.html Home page of project]
 
  * [http://www.vintage-computer.com/vcforum/album.php?albumid=184&attachmentid=12300 Picture of the simulator connected to a PDP-11/53]
 
  * [http://www.vintage-computer.com/vcforum/album.php?albumid=184&attachmentid=12300 Picture of the simulator connected to a PDP-11/53]
 +
 
[[Category: DEC Disk Drives]]
 
[[Category: DEC Disk Drives]]

Revision as of 14:24, 5 October 2017


RL02
Manufacturer: Digital Equipment Corporation
Drive Controller(s): RL11 (UNIBUS)
Capacity: 10.4 Mbytes (formatted)
Transfer Rate: 512 Kbytes/sec
3.9 usec/word (peak)
Average Access Time: 67.5 msec
Revolutions per Minute: 2400
1/2 Revolution Time: 12.5 msec
One Track Seek Time: 15 msec
Average Seek Time: 55 msec
Maximum Seek Time: 100 msec
Head Switching Time: 8 msec (maximum)
Total Surfaces: 2
Tracks per Surface: 512
Sectors per Track: 40
Words per Sector: 128
Tracks per Inch: 250
Density: 3725 bpi (maximum)
Recording Method: Modified Frequence Modulation (MFM)
Start Time: 40 seconds
Stop Time: 30 seconds
Physical Size: 19" W x 10-1/2" H x 25" L
Weight: 55 pounds
Power Consumption: 160VA (running); 550 VA (starting, 10 seconds)


An RL02 drive

The RL02 is the high-density version of the RL01 disk drive, with twice as many tracks per surface, introduced in 1978 by DEC.

The QBUS controllers are the RLV11 and RLV12, the latter being the Q22 version.

4.3 BSD disktab

rb02|RB02|DEC RL02 on 730 IDC:\
    :ty=removable:se#256:ns#40:nt#2:nc#32:\
    :pa#15884:ba#4096:fa#1024:\
    :pb#4480:pc#20480:

Emulating the RL02

An RL02 cartridge

Reinhard Heuberger has created an open source emulator for the RL02 (and RL01) using a Terasic DE0-Nano Altera Cyclone IV FPGA board, extended with necessary interfacing hardware and an SD card slot. The emulator can be used with a real PDP-11, for example.

* Home page of project
* Picture of the simulator connected to a PDP-11/53