IBM 12/24 GB DDS-3 4mm Internal (SCSI) Tape Drive

12/24 GB DDS-3 4mm Internal (SCSI) Tape Drive

Important ! Some functions are duplicated by both, the JUMPER and DIP-Switches. One or the other should be used per function. DO NOT set both locations to the same function. (i.e. If you set dip switch 1 to ON and install a jumper on pins 5-6, the drive will be set to SCSI ID 5).

Jumper 7, 9 and 10 are reserved and should be left in their factory default setting (OFF).

SCSI ID selection (Switch or Jumper)

SCSI-ID SW-3 SW-2 SW-1 ------- J5-6 J3-4 J1-2 0 Off Off Off 1 Off Off ON 2 Off ON Off 3 Off ON ON 4 ON Off Off 5 ON Off ON 6 ON ON Off 7 ON ON ON

SCSI-ID	SW-3	SW-2	SW-1
-------	J5-6	J3-4	J1-2
0	Off	Off	Off
1	Off	Off	ON
2	Off	ON	Off
3	Off	ON	ON
4	ON	Off	Off
5	ON	Off	ON
6	ON	ON	Off
7	ON	ON	ON

DDS-Pass Through Mode - Hardware Compression settings

DDS-Pass Through Mode (hardware compression) is enabled or disabled by either SW-6 or jumpers 9-10.
The default is DDS pass through mode disabled (SW-6 = OFF, jumpers 9-10 = OFF).
If using the DIP switch to set DDS-Pass Trough mode, remove jumper from pin 9-10.

   SW-6 = ON    enable pass through

   Data Compression disabled.

   SW-6 = OFF    disable pass through

   Data Compression enabled.

SW-6 = ON	enable pass through
	Data Compression disabled.
SW-6 = OFF	disable pass through
	Data Compression enabled.

Media Recognition and Parity Checking

Media Recognition System (MRS) setting and Parity configuration must be set using the DIP-switches.
The SW-4 switch enables/disables the MRS-mode. The default is MRS disabled (SW-4 = ON).
If MRS is disabled (SW-4 = ON), the drive read/writes to MRS and non-MRS media.
If MRS is enabled (SW-4 = OFF), the drive will write to MRS media only.

The SW-5 enables/disables parity checking. Default parity is disabled (SW-5 = OFF).

Power Specifications

DC Voltage +12 Vdc + 5 Vdc Voltage Tolerance + or - 10% + or - 7% Operational Current 250 mA 600 mA Standby Current 50 mA 550 mA Peak Current 600 mA 800 mA Ripple, Peak to Peak <= 100mV <= 100mV Standby Power Dissipation < 3.3 watts < 2.2 watts Operating Power Dissipation < 5.5 watts < 5.5 watts

DC Voltage	+12 Vdc	+ 5 Vdc
Voltage Tolerance	+ or - 10%	+ or - 7%
Operational Current	250 mA	600 mA
Standby Current	50 mA	550 mA
Peak Current	600 mA	800 mA
Ripple, Peak to Peak	<= 100mV	<= 100mV
Standby Power Dissipation	< 3.3 watts	< 2.2 watts
Operating Power Dissipation	< 5.5 watts	< 5.5 watts

Specifications

Compressed Data 2.2 MB per second Uncompressed Data 1.1 MB per second

Compressed Data	2.2 MB per second
Uncompressed Data	1.1 MB per second

Environmental Specifications

- Operational Nonoperational Temperature Range +5°C to +45°C +41°F to +113°F -40°C to +65°C -40°F to +149°F Relative Humidity (noncondensing) 20% to 80% 0% to 90% Mximum Wet Bulb Temperature 26°C (78.8°F) No condensation Altitude -100m to 4575m -330ft to +15000ft -300m to 15200m -985ft to +49900ft

-	Operational	Nonoperational
Temperature Range	+5°C to +45°C +41°F to +113°F	-40°C to +65°C -40°F to +149°F
Relative Humidity (noncondensing)	20% to 80%	0% to 90%
Mximum Wet Bulb Temperature	26°C (78.8°F)	No condensation
Altitude	-100m to 4575m -330ft to +15000ft	-300m to 15200m -985ft to +49900ft

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