Difference between revisions of "TM03 magtape controller"
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| − | The '''TM03''' magtape | + | The '''TM03''' [[magnetic tape controller|magtape formatter]] is a [[MASSBUS]] device controller, effectively an upgraded version of the [[TM02 magtape controller]]. It is used with 1/2" [[magnetic tape drive]]s; supported drives include the [[TE16 magtape drive|TE16]] (45 inches per second), [[TU45 magtape drive|TU45]] (75 IPS) and [[TU77]] (125 IPS). It can handle 800 bits/inch ([[NRZI]]) and 1600 bits/inch (PE - Phase Encoded). |
| − | A TM03 can control up to 8 drives, although the TM03 and drives count as only a single MASSBUS | + | A TM03 can control up to 8 drives, although the TM03 and drives count as only a single MASSBUS device. The TM03 controller connects to all the drives over a 'slave bus'; all the drives are identical (unlike in the [[TM11 magtape controller|TM11]]/[[TU10 magtape drive|TU10]] system. |
==Implementation== | ==Implementation== | ||
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==Drive bus== | ==Drive bus== | ||
| − | [[Category: | + | ''To be added.'' |
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| + | ==External links== | ||
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| + | * [http://www.bitsavers.org/pdf/dec/magtape/tm03/TM03_UsersGuide.pdf TM03 Magnetic Tape Formatter User Guide] (EK-0TM03-UG-003) | ||
| + | * [http://www.bitsavers.org/pdf/dec/magtape/tm03/TM03_TechnicalManual_Jul79.pdf TM03 Magnetic Tape Formatter Technical Manual] (EK-0TM03-TM-002) | ||
| + | * [http://www.bitsavers.org/pdf/dec/magtape/tm03/TM03_FieldMaintDrws_Feb78.pdf TM03 Field Maintenance Print Set] (MP00349) | ||
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| + | [[Category: MASSBUS Devices]] | ||
Latest revision as of 17:41, 22 May 2022
The TM03 magtape formatter is a MASSBUS device controller, effectively an upgraded version of the TM02 magtape controller. It is used with 1/2" magnetic tape drives; supported drives include the TE16 (45 inches per second), TU45 (75 IPS) and TU77 (125 IPS). It can handle 800 bits/inch (NRZI) and 1600 bits/inch (PE - Phase Encoded).
A TM03 can control up to 8 drives, although the TM03 and drives count as only a single MASSBUS device. The TM03 controller connects to all the drives over a 'slave bus'; all the drives are identical (unlike in the TM11/TU10 system.
Implementation
The TM03 is implemented as a set of boards, all of which plug into a custom hex-high nine-slot backplane, usually mounted in a special box in the first tape drive rack. The modules include three hex-size boards, six quad-size modules, and six dual-high modules.
The hex modules are:
- M8933 - Tape Control Common Mode
- M8909 - MASSBUS Interface (the documentation refers to both the M8909, and M8909-YA)
- Bit Fiddler
- M8906 for use with a PDP-11
- M8915 for use with a PDP-10 and TE16 or TU45
- M8915-YA for use with a PDP-10 and TU77
The quad modules are:
- 3 x M8901 - Data Sync (PE)
- M8901-YA for the TE16
- M8901-YB for the TU45
- M8901-YC for the TU77
- M8932 - Tape Control (PE)
- M8934 - Tape Control (NRZI)
- M8934 for the TE16 and TU77
- M8934-YA for the TU45
- M8905-YB - Maintenance Register
The dual modules are:
- M8937 - Control and Write Drivers
- M8908-YA
- M8908
- 3 x M5903 or M5903-YA
The first three are the drive slave bus interface; the last three are the MASSBUS interface.
Drive bus
To be added.
External links
- TM03 Magnetic Tape Formatter User Guide (EK-0TM03-UG-003)
- TM03 Magnetic Tape Formatter Technical Manual (EK-0TM03-TM-002)
- TM03 Field Maintenance Print Set (MP00349)
