craystone_header          Conner CTD8000 4/8Gb DAT

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INTRODUCTION
The Conner CTD8000 is an internal DDS2 DAT drive with a 4/8Gb capacity. It is 3.5" sized as standard, a 5.25" fixing kit and bezel is available as an option.
The following tables and notes give a quick guide in setting up the Conner CTD8000 4/8Gb.

CONFIGURING YOUR TAPE DRIVE
Locate the dip-switches by turning the tape drive upside down with the front bezel facing towards you.  The dip-switchbank is positioned on the right hand side of the tape drive.  If you find that your tape drive doesn't have a dip-switchbank, please
click here.
The Conner CTD8000 is despatched with factory default settings, as shown in the table below.
You should find that only the SCSI ID needs to be altered to suit your system (read below for full SCSI ID variations and instructions on achieving them).
Once this as been completed, the drive may need to be terminated (depending on your system), see SCSI TERMINATION below.

Default Conner CTD8000 Dip Switch Settings

OFF
ON

S8
Jumper Off

S7
Jumper ON

S6
Jumper Off

S5
Jumper Off

S4
Jumper ON

S3
Jumper Off

S2
Jumper Off

S1
Jumper Off

  Self
Test
Inquiry
String
DDS Pass
Through.

Compression
Parity MRS
Mode

SCSI ID SELECTION

SCSI ID

OFF

OFF

OFF

0

Switch 6 (COMPRESSION) When OFF=8Gb, ON=4Gb)

Switch 5 (PARITY) Enable or Disable parity checking on the SCSI bus.

Switch 4 (MRS MODE) If ON the drive reads or writes both MRS and
non-MRS 4mm media. if OFF, the drive reads and writes to MRS media
and reads from but does not write to 4mm media.)

Switches 1-3 (SCSI ID) The three switches correspond to the SCSI ID.
Each SCSI device on a bus must have a unique SCSI ID.
The highlighted example shows SCSI ID 5.  ON OFF ON (4 + 0 + 1 = 5)
OFF OFF ON 1
OFF ON OFF 2
OFF ON ON 3
ON OFF OFF 4
ON OFF ON 5
ON ON OFF 6
ON ON ON 7

SCSI TERMINATION
If you're unsure whether you need to terminate your tape drive, refer to the SCSI termination page
To set the SCSI termination and SCSI power on a Conner CTD8000 tape drive, you must look to the rear of the drive.  There you will see, above the SCSI interface and power connection, a 16 pin jumper block.   Ensure that only pins 11 and 12 (SCSI TERMINATION) and pins 15 and 16 (SCSI TERMINATION POWER) are jumpered.  The diagrams below show both the position of the jumper block and the jumper block in greater detail.

Conner CTD8000 Rear View
Conner CTD8000 Rear view Drawing

Jumper 11-12
Active Termination

     Conner CTD8000 Jumpers
Jumper 15-16
Termination Power

SCSI CONNECTION
The Conner CTD8000 4/8Gb needs to be connected to a SCSI controller card. A low cost card, such as an
Adaptec 1505, is suitable for this task.  However the Adaptec 1505 will only control the one SCSI device.

Conner CTD 8000 4/8Gb - Table of LED indicators
LED Colour State Indication
Yellow (Left) ON (lit) The drive is reading or writing the tape.
Yellow (Left) Flashing Rapidly A hardware fault occurred.
Green (Right) ON (lit) A cartridge is inserted and does not generate excessive errors.
Green (Right) Flashing Slowly A cartridge is inserted but generates excessive errors beyond a
predefined error threshold. (Warning only). Use a DDS DAT cleaning cartridge to clean the heads.
Green (Right) Flashing Slowly (with
yellow LED flashing)
A pre-recorded audio cartridge is inserted and is being played automatically.
Green (Right) Flashing Rapidly The drive could not write the tape correctly. (ERROR).
Use a DDS DAT cleaning cartridge to clean the heads.
Conner CTD8000 4/8Gb - Media Information
 

60 Metre

90 Metre

120 Metre To back up 8Gb (compression ON) on a Conner CTD8000 a 120 metre cartridge is used, if compression was OFF a 4Gb capacity would be achieved.  Inserting a 90 metre cartridge gives a 4Gb compressed and 2Gb native capacity.  Inserting a 60 metre cartridge gives a 2.6Gb compressed and 1.3Gb native capacity.
(*assumes 2:1 compression ratio)
Native

1.3Gb

2Gb

4Gb
Compressed

2.6Gb*

4Gb*

8Gb*

Routine Maintenance
If excessive magnetic dust or debris collects at one or more of the tape heads, your drive may not be able to read from or write to tape.  To avoid this situation, you must clean the tape heads on your DAT drive in the following circumstances:
bullet.gif (166 bytes)   After the first four hours of tape movement of a new cartridge
bullet.gif (166 bytes)   After every 25 hours of read/write operation.
bullet.gif (166 bytes)   Whenever the rectangular, green cartridge-status LED flashes during operation.

Note. A slowly flashing green LED may indicate that a tape is damaged or is nearing the end of it's life.  if cleaning the head does not correct the flashing LED condition, replace the cartridge.  the slowly flashing LED does not indicate a loss of data, nor does it, indicate SCSI problems.

To clean the tape heads on your drive, use a DDS DAT cleaning cartridge.  After you insert the cartridge, the drive detects that the cartridge is a cleaning cartridge, then loads and runs the cartridge for about 30 seconds.   When cleaning is complete, the drive ejects the cartridge.
Each time the cleaning cartridge is loaded, a new, unused portion of cleaning tape is advanced over the entire tape path.  The drive does not rewind a cleaning cartridge.   After about 30 cleaning cycles, the entire tape is used, and you must purchase a new cleaning cartridge.
If you insert a cleaning tape that has been used up, the drive ejects the tape without completing a cleaning operation.  this process takes just under 25 seconds.

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