K2000/K2vx/K2500 series SCSI Drive Compatibility Information All drives must be SCSI 1 or SCSI 2 compatible This document is divided into two parts. Part 1 applies to a K2500 with v2.31 or later of the operating system, and a K2000 or K2vx with 3.52 or later. Part 2 applies to units with earlier versions of the operating system. PART 1 (K2500 w/ v2.31 or later; K2000/K2vx w/ v3.52 or later) DRIVE SIZE CAPACITY: Any drive 2048Mb (2 Gig), or less, can be used with the K2000, K2vx, & 2500. These figures apply to the available space AFTER the drive has been formatted. If a larger drive is formatted in DOS from a computer, and the first partition is kept within the above limits, that drive will function with the Kurzweil, since the Kurzweil only sees the first partition. If a larger drive is formatted from the Kurzweil, the drive will be formatted to 2048MB and the rest of the drive capacity ignored. FIXED DRIVES External Any fixed drive conforming to the capacity requirements and the SCSI 1 or SCSI 2 spec should work without problems. Asynchronous transfer is not supported, so if a drive has jumpers which allow enabling or disabling this mode, it must be disabled. Versions previous to K2000/K2vx v3.5 or K2500 v2.13 do not support drives which require a response to the Unit Attention command. Internal Installation of an internal drive requires an HDC-1 or HDC-25K hard drive installation kit. The K2000, K2vx, K2000R and K2500R require the HDC-1 kit, which contains the cable, hardware, and instructions for installing the option. The K2500 keyboards require the HDC-25K kit, which contains the bracket, filter electronics, cables, hardware, and instructions for installing the option. (These kits do not contain a SCSI hard drive.) All options, as well as the internal hard drive must be installed by an authorized service center. In addition to the requirements listed under External, the following specifications apply: Oper. Temp: 50 (C [122 (F]; for K2000/K2vx Keyboards: 55 (C [131 (F] Height: 25.4mm [1"] Width: 101.6mm [4"] Length: 146mm [5.75"] Mounting: Industry Standard 3.5" x 1" Drive Power Consumption: For the K2000/K2vx Keyboards: For the K2000 Rack +5VDC +12VDC +5VDC +12VDC Start Up: < .625A Start Up: < 1.0A Start Up: < 1.0A Start Up: < 1.5A Read/Write: < .625A Read/Write: < .75A Read/Write: < 1.0A Read/Write: < 1.0A Seek: < .625A Seek: < .75A Seek: < 1.0A Seek: < 1.0A Idle: < .625A Idle: < .75A Idle: < 1.0A Idle: < 1.0A For the K2500 Rack and Keyboards: +5VDC +12VDC Start Up: < 2.0A Start Up: < 3.0A Read/Write: < 1.0A Read/Write: < 1.5A Seek: < 1.0A Seek: < 1.5A Idle: < 1.0A Idle: < 1.5A REMOVABLE MEDIA DRIVES Syquest - Compatible. Iomega (Bernoulli, Zip, and JAZ) - Compatible. Magneto Opticals - Most are compatible. CD-ROMs - Most are compatible. One exception is NEC drives, which are not supported. Problems have also been reported with the Plextor 12x CD-ROM. CD-ROM Speed - For the K2500, starting with v2.50, drives up to 8x will perform faster than a slower version. Drives faster than 8x will function correctly but not perform faster. For the K2000, and versions of the K2500 previous to 2.5, drives faster than 2x will not perform any faster than a 2x drive. Writeable CD-ROMs - Not supported. Tape Based Drives - Not supported. PART 2 (for K2500 w/ v2.13 or earlier or K2000/K2vx w/ 3.18 or earlier): DRIVE SIZE CAPACITY: Any drive 1023Mb (1 Gig), or less, can be used with the K2000, K2VX, & K2500 v1.xx (a 2 gig drive can be used with the K2500 starting with v2.08). These figures apply to the available space AFTER the drive has been formatted. If a larger drive is formatted in DOS from a computer, and the first partition is kept within the above limits, that drive will function with the Kurzweil, since the Kurzweil only sees the first partition. (K2000 requires v3 or later for DOS compatibility.) FIXED DRIVES External Any fixed drive conforming to the capacity requirements and the SCSI 1 or SCSI 2 spec should work without problems, except for units which require a response to the Unit Attention command. Asynchronous transfer is not supported, so if a drive has jumpers which allow enabling or disabling this mode, it must be disabled. Internal All of the information regarding internal drives in Part 1 applies. REMOVABLE MEDIA DRIVES Syquest - Compatible. Previous to version 3 for the K2000, for drives which can read and write to more than one size cartridge ( for example, the 88C, 5110C, and 5200C), only native size cartridges can be written to. Iomega (Bernoulli, Zip, and JAZ) - Compatible. However, these drives are designed so that they go to sleep if the cartridge is not accessed after a specified time. This will cause the Kurzweil to lock up, either immediately or when Load is pressed. To avoid this problem, eject the disk when not in use. This prevents the drive from going into sleep mode. Starting with K2000/K2vx 3.52 or K2500 v2.31, this problem does not occur. Magneto Opticals - Most are compatible. Drive size limits mentioned above apply. Media must be hard formatted as 512 bytes per sector. CD-ROMs - Drives must be able to support 512 bytes per sector. Drive mechanisms from the following manufacturers are known to support this format: Sony, Toshiba, Chinon, Plextor, Aiwa, and Matsushita. CD-ROM Speed - Drives faster than 2x will function but will not perform any faster than a 2x drive. Writeable CD-ROMs - Not supported. Tape Based Drives - Not supported. General Notes Drive compatibility has been substantially enhanced in versions 3.52 for the K2000/K2vx and 2.31 for the K2500. If you are having problems with a particular drive, we recommend upgrading to the latest operating system. Chances are that the drive will then work, although we can't guarantee compatibility for every drive. For the K2000/K2vx prior to v3.52, the following limitation applies to units without the PRAM option installed: For Backup and Copy functions, the combined size of the 2 drives must not exceed 1023 MB. This limit does not apply if PRAM is installed. Known Incompatibles For K2000/K2vx version 3.18 or lower, or K2500 version 2.13 or lower: Fixed Drives - Quantum Empire Series, Seagate 1.3 Gig, IBM Spitfire, Fujitsu FJ694SB, plus all NEC, Epson, and Panasonic models Magneto Opticals - Teac 128, Pinnacle 650, IBM 230, Iomega Floptical CD-ROMs - All NEC, Panasonic, and Epson models; Reno, Apple CD300i, and Apple 600e (this last model works with K2500 v2.13) For K2000 with version 2 or lower, all of the above plus: Magneto Opticals - Sony E301 & C301, Fujitsu M2511 & M2512, Ricoh RO5031E, Maxoptix Tahiti T3-1300 series CD-ROMs - all Chinon mechanisms; compatibility with Aiwa, Plextor, and Matsushita is not certain