Device Type	Tape Drive
Interface	SCSI-2
Format	QIC-24 (TDC3620), QIC-120 (TDC3640), QIC-150 (TDC3660 VER. 2)
Sustained Transfer Rate	Unidentified
Size	5.25 in. half height
View	Top

CONNECTIONS
Function	Label
Ground connector	CN1
Note: CN1 not present on all models.

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Factory configured - do not alter. (Serial communication out)	JP1/Pins 1 & 2	Unidentified
»	Factory configured - do not alter. (Serial communication in)	JP1/Pins 3 & 4	Unidentified
	Parity check enabled	JP1/Pins 5 & 6	Closed
	Parity check disabled	JP1/Pins 5 & 6	Open

DRIVE SELECT ID
Drive ID		JP1/Pins 7 & 8	JP1/Pins 9 & 10	JP1/Pins 11 & 12
»	0	Open	Open	Open
	1	Open	Open	Closed
	2	Open	Closed	Open
	3	Open	Closed	Closed
	4	Closed	Open	Open
	5	Closed	Open	Closed
	6	Closed	Closed	Open
	7	Closed	Closed	Closed
Note: Pins 2 & 4 of JP1 must be open to enable SCSI ID select. With Pins 2 & 4 of JP1 closed, factory test functions are enabled via pins 7-12.

MANUFACTURERS RECOMMENED MEDIA
Drive	Tape	Capacity Without Compression	Capacity With Compression
TDC 3620	3M® DC300XL 137m	45MB	Unidentified
TDC 3620	3M® DC300XLP 137m	45MB	Unidentified
TDC 3620	DEI 169m	55MB	Unidentified
TDC 3620	DEI Ser. II Gold Plus 169m	55MB	Unidentified
TDC 3620	3M® DC600A 183m	60MB	Unidentified
TDC 3620	3M® DC600XTD 183m	60MB	Unidentified
TDC 3640	3M® DC600A 183m	125MB	Unidentified
TDC 3640	3M® DC600XTD 183m	125MB	Unidentified
TDC 3660 (VER. 2)	3M® DC600A 183m	125MB	Unidentified
TDC 3660 (VER. 2)	3M® DC600XTD 183m	125MB	Unidentified

TERMINATING RESISTOR CONFIGURATION
Function	RP1	RP2	RP3
Termination enabled	Terminator installed	Terminator installed	Terminator installed
Termination disabled	Terminator not installed	Terminator not installed	Terminator not installed

DIAGNOSTIC LED(S)
LED1 (Red) Blink-Code*	Condition	Fatal Error
Short	Short	Short	Short	Short	Short	No error
Short	Short	Short	Short	Short	Long	Append error
Short	Short	Short	Short	Long	Short	Bad command block
Short	Short	Short	Short	Long	Long	Bad parameter block
Short	Short	Short	Long	Short	Short	Bus parity error
Short	Short	Short	Long	Short	Long	Busy
Short	Short	Short	Long	Long	Short	Capst. servo error	B
Short	Short	Short	Long	Long	Long	Cartridge removed
Short	Short	Long	Short	Short	Short	Compare error
Short	Short	Long	Short	Short	Long	Copy data error
Short	Short	Long	Short	Long	Short	Copy managem. error
Short	Short	Long	Short	Long	Long	File mark error
Short	Short	Long	Long	Short	Short	Head servo error	B
Short	Short	Long	Long	Short	Long	Illegal command
Short	Short	Long	Long	Long	Short	Illeagal copy
Short	Short	Long	Long	Long	Long	Illegal length
Short	Long	Short	Short	Short	Short	Inappropriate request
Short	Long	Short	Short	Short	Long	Latch error	A
Short	Long	Short	Short	Long	Short	No cartridge
Short	Long	Short	Short	Long	Long	Not loaded
Short	Long	Short	Long	Short	Short	Power-on request
Short	Long	Short	Long	Short	Long	QIC. No data detected
Short	Long	Short	Long	Long	Short	Read after write error
Short	Long	Short	Long	Long	Long	Read EOM logical
Short	Long	Long	Short	Short	Short	Read EOM physical
Short	Long	Long	Short	Short	Long	Reserv. Conflict
Short	Long	Long	Short	Long	Short	Sensor error	B
Short	Long	Long	Short	Long	Long	Tape runnout	B
Short	Long	Long	Long	Short	Short	Unit attention
Short	Long	Long	Long	Short	Long	Write EOM warning
Short	Long	Long	Long	Long	Short	Write EOM
Short	Long	Long	Long	Long	Long	Cartridge write prot.
Long	Short	Short	Short	Short	Short	16 rewrite errors
Long	Short	Short	Short	Short	Long	24 rereads. Blk. fnd.
Long	Short	Short	Short	Long	Short	24 rereads. Not fnd.
Long	Short	Short	Short	Long	Long	Illegal copy function
Long	Short	Short	Long	Short	Short	Illegal header
Long	Short	Short	Long	Short	Long	No header
Long	Short	Short	Long	Long	Short	Too large address
Long	Short	Short	Long	Long	Long	Bad ID or LUN
Long	Short	Long	Short	Short	Short	Partial Description
Long	Short	Long	Short	Short	Long	Bad target status
Long	Short	Long	Short	Long	Short	Check condition
Long	Short	Long	Short	Long	Long	Data transfer error
Long	Short	Long	Long	Short	Short	Selection failure

DIAGNOSTIC LED(S) CONTINUED
LED1 (Red) Blink-Code*	Condition	Fatal Error
Long	Short	Long	Long	Short	Long	Sequence error
Long	Short	Long	Long	Long	Short	Illegal block size
Long	Long	Short	Short	Short	Long	Buffer size error	A
Long	Long	Short	Short	Long	Short	Rereads outside limits
Long	Long	Short	Short	Long	Long	Rewrites outside limits
Long	Long	Short	Long	Short	Short	Buffer error. Low nibble	A
Long	Long	Short	Long	Short	Long	Buffer error. High nibble	A
Long	Long	Short	Long	Long	Short	Unspec. fatal error
Long	Long	Short	Long	Long	Long	Timeout error	B
Long	Long	Long	Short	Short	Short	Buffer RAM error	A
Long	Long	Long	Short	Short	Long	Drive contr. Error	A
Long	Long	Long	Short	Long	Short	EEPROM verification	A
Long	Long	Long	Short	Long	Long	EEPROM error	A
Long	Long	Long	Long	Short	Short	External RAM error	A
Long	Long	Long	Long	Short	Long	SCSI contr. Error	A
Long	Long	Long	Long	Long	Short	Spurious interrupt	B
Long	Long	Long	Long	Long	Long	Stack overflow	B
Note: Type ‘A’ Code: Error cannot be reset. Drive will continue to report error with a blinking code once initial error has occurred. Service is required. Type ‘B’ Code: Errors are failures in the Drive or the cartridge. Error can be cleared by RESET and information saved in EEPROM.