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¼" Cartridge Streaming Tape Drive

ND 106270

[Photo: Tape drive image]

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ND Norsk Data

[Scanned by Jonny Oddene for Sintran Data © 2021]

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1/4" Cartridge Streaming Tape Drive

INTRODUCTION

The ND 106270 is an 5 1/4" form factor, high-quality, cost-effective, cartridge streaming tape drive. Streaming is the technique of writing to and reading from a magnetic tape without making frequent stops. High capacity, compact size, and the ability to record data on industry standard 1/4" cartridge media are basic attributes of the ND 106270. Large scale integration (LSI) employed extensively in the ND 106270 electronics is designed to produce superior reliability.

FEATURES

  • High-capacity/low-cost media.
  • High data-transfer rate.
  • Multifunction capability.
  • Intelligent control.
  • Standard interface (CIQ-02).
  • Data integrity.
          TRACKS
             5
  ┌───────────┐
  │         1 │
  │ ┌─────────┘
  │ │       7  
  │ └───────┐  
  │         │  
  └── 3     │  
     ┌──────┘  
     │     4   
     └─────┐   
           │   
    0 ─────┘   
  ┌────────┐   
  │      6 │    
  │ ┌──────┘    
  │ │    2      
  │ └────┐      
  │      │      
  └──────┘      
        8       

B.O.T. (PHYSICAL)     E.O.T. (PHYSICAL)
                      E.O.M. (LOGICAL)

Nine-track recording

          Serpentine Recording

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1/4" Cartridge Streaming Tape Drive

PRODUCT DESCRIPTION

  • The ND 16072 Cartridge Streaming Tape Drives uses an ANSI Standard X3.55-1977 1/4" tape cartridge which is 600' or 450' long.
  • The Read/Write head assembly consists of two Read and Write heads with an Erase bar for full tape erase prior to recording. This allows the tape unit to perform a read-after-write check during a Write operation.
  • A 4 to 5 run-length limited code is used because every four bits of data are translated to a corresponding five-bit code. Using this code will prevent the recording of three consecutive zeros in the data stream, thus allowing for efficient NRZI recording onto the tape.
  • The 4 to 5 code also permits unique bit patterns for GAP, SYNC, and FILEMARK, which will never appear in the users' data field.

TECHNICAL SPECIFICATIONS

Data handling:
Recording Track/Format 9-track serpentine
No. of Channels 2
Formatted Capacity Up to 60 MB
Backup Time 12 min. (without compare)
Recording Mode NRZI
Recording Density 8000 BPI
Recording Code (0,2) Run-Length Limited
Flux Density 10,000 frpi
Track Capacity Up to 6.5 MB
Data Transfer Rate 86.7 Bytes/sec.
Tape Speed 90 IPS
Start/Stop Time 300 msec
Media ANSI Standard X3.55-1977 certified for 10,000 frpi
Device Reliability:
Recoverable Error Rate No more than 1 in 10^8 bits
Non-recoverable Error Rate No more than 1 in 10^10 bits

Power Requirements for basic drive and formatter:

    • 12 V ± 10 % 1.0A nom. 3.0A max.
    • 5V ± 5 % 3.1A max.
  • Typical Dissipation 21.5 Watts

Physical Dimensions for basic drive:

  • Height 44 mm
  • Width 150 mm
  • Depth 218 mm
  • Weight basic drive and formatter 1.9 kg

DOCUMENTATION:

Tandberg Reference Manual TDC 3319