lotus



previous page: Hard Drive: TANDON: TM262 21MB 5.25"/HH   MFM ST506
  
page up: Hard Drive Specs from TANDON
  
next page: Hard Drive: TANDON: TM362 21MB 3.5"/HH    MFM ST506

Hard Drive: TANDON: TM262R 20MB 3.5"/HH RLL ST506




T M 2 6 2 R    TANDON
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     782|     |     |
Capacity form/unform    20/      MB        Heads           2|     |     |
Seek time   / track  85.0/     ms          Sector/track   26|     |     |
Controller           RLL / ST506           Precompensation 65535
Cache/Buffer               KB              Landing Zone      781
Data transfer rate    0.938 MB/S int       Bytes/Sector      512
                      0.938 MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     NO           Certificates                                  

Layout

TANDON TM362/TM262 PRODUCT SPECIFICATION AND USER'S MANUAL 1985

  +---------------------------------------------------------+  1
  |                                                         |XX
  |                                                         |XX J1
  |                                                      +1 |XX
  |                                             Terminator| |XX
  |                                             Resistor || |XX
  |                                                      || |XX
  |                                                      ++ |XX
  |                                                  W1+--+ |
  |                                          Drive   W2|  | |XX1
  |                                          Address W3|  | |XX J2
  |                                                  W4|  | |XX
  |                                                  W5|  | |XX
  |                                                    +--+ |XX
  |                                                         |XX
  |                                                         |  1
  |                                                         +---J3XX
  |                                                         +-----XX
  +---------------------------------------------------------+Power

Jumpers

TANDON TM362/TM262 PRODUCT SPECIFICATION AND USER'S MANUAL 1985

Jumper Setting
==============

 Drive Address Jumper
 --------------------
                                            W1 Drive Select 0
   +--------+   +--------+   +--------+     W2 Drive Select 1
   ++++++++++   ++++++++++   ++++++++++     W3 Drive Select 2
          xx W1       xx W2      xx   W3    W4 Drive Select 0
                                 |          W5 Radial Configuration
   +--------+   +--------+      Jumper
   ++++++++++   ++++++++++
      xx    W4   xx      W5
      |          |
     Jumper     Jumper

The drive address option allows the user to daisy chain up to four
drives, and to enable one drive at a time. Drive Select is
implemented by shorting one of the four connections, using the Drive
Select Jumper. The W5 location is used for radial configurations.
The drive is selected at all times with the W5 jumper installed.

If jumper configurations are changed, power should be cycled off and
on, so that the microprocessor can recognize the new configuration.

 Terminator Resistor
 -------------------
                        The terminator resistor pack, located on the
        +--------+      logic circuit board should be installed in the
        |********| ^    last drive of the daisy chain. All other
        +--------+ |    drives on the interface must have the
        ++++++++++      resistor pack removed. For a radial configura-
        +--------1      tion, all drives should have the terminator
                        resistor pack installed.













TOP
previous page: Hard Drive: TANDON: TM262 21MB 5.25"/HH   MFM ST506
  
page up: Hard Drive Specs from TANDON
  
next page: Hard Drive: TANDON: TM362 21MB 3.5"/HH    MFM ST506