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TASCAM
TEAC Professional Division
MX-2424
24-Bit 24-Track Hard Disk Recorder
MX-2424 Version 2.1
SCSI Instructions
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SCSI Terminology ................................................................................................................................................. 3 SCSI.....................................................................................................................................................................................3 Throughput..........................................................................................................................................
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SCSI Terminology It is important to understand some SCSI basics before adding drives to an MX-2424. The first step in this understanding is familiarity with a few simple terms. SCSI Stands for Small Computer System Interface. This is the data transfer method and physical connection used by the MX-2424 for connection to hard drives and backup solutions. Throughput This is the amount of data transferred from one device/component to another in a specified time period. 8-Bit Data Transfer This ref
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SCSI Cables/Terminators There is a considerable difference in quality and performance of cables used to connect SCSI devices. Low quality cables may cause data transmission errors, file corruption and system malfunctions. It is important to always use high quality SCSI cables & terminators such as those available from TASCAM listed below for use with TASCAM distributed external drive enclosures. SCSI-MX2: 3’ 68-pin High Density to 68-pin Very High Density SCSI cable for connecting the MX- 2424
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Paralan Corporation www.paralan.com 4655 Ruffner St. San Diego, CA 92111 (858)-560-7266 Supported SCSI Cables: • 68-Pin to 68-Pin High density SCSI cable for LVD and Wide use, 3 ft. P/N: SQ-9-9-3 StorCase Technology www.storcase.com 17600 Newhope St. Fountain Valley, CA 92708 (800) 435-0642 Supported SCSI Cables • 68-pin Wide Very High Density to 68-Pin High Density Cable P/N: DC-SCSI3/U2-3 • 68-pin Wide Very High Density to 68-Pin Very High Density Cable P/N: DC-U2-3 Supported Terminators: • 50
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Removable “Hot-Swappable” SCSI Solutions The following “hot-swappable” StorCase SCSI Carrier/Frame Systems are approved for use with the MX-2424 when configured according to the diagrams on the following pages: Rhino Jr. System Frame & Carrier: RJR100-SW/B (Wide) RJR100-SWU2X/B (Ultra 2) Carrier Only: RJR100-CSW/B (Wide) RJR100-CSWU2X/B (Ultra 2) Ultra 160 Data Express System Frame & Carrier: DE100i-SW160/B (New Part #: S20A100 includes Isolator Board) Carrier Only: DE100i-CSW160/B Frame Only: D
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Mounting/Un-Mounting Drive in Removable Carriers When drives are installed in StorCase carrrier/frames, the MX-2424 can mount and un-mount removable drives without required a system reboot. Remember to un-mount (SHIFT+MOUNT) before removing any StorCase carriers from the MX-2424 to avoid data corruption and system errors. To re-mount the drive carrier, lock it and press the MOUNT key. Note that Rhino Jr. and Data Express systems are not cross compatible. External Drive Cases The following Sto
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Notes SCSI Connection Matrix MX-2424 Approved SCSI Configurations Internal Drive External Drive Front HD Front HD Ext HD Ext HD Front Front Front HD Data Data Ext Ext HD Data Data Ext Int HD Ext DVD DVD Tape Rhino Jr Express Express Tape Rhino Jr Express Express Orb Ultra 2 160 Ultra 2 160 1 11 11 1 1 11 11 2 11 2 * 11 2 * 11 1 11 11 2 11 2 * 11 2 * 11 1 11 11 1 11 1 11 1 11 11 1 11 1 11 2 * 11 1 11 111 * 111 * 11 2 * 1 3 1 3 * 4 # 4 * # 13 * * Each Storcase device in this configuration
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SCSI Rules There are a few rules that must be considered when connecting SCSI devices to the MX-2424: 1. Narrow (8-bit) devices connected externally to the MX-2424 must be connected at the end of the SCSI chain. 2. Narrow (8-bit) devices may be installed in the front panel bay of the MX-2424 with the proper adapter (ADP-9053). 3. Only Approved SCSI devices should be connected to the MX-2424 in approved configurations. For a list of currently approved SCSI devices check the TASCAM web site at
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MX-2424 with standard internal hard drive and single ended backup device (DVD-RAM or Travan) in the front bay. MX-2424 with standard internal hard drive and single ended backup device (DVD-RAM or Travan) in external 68-pin case. MX-2424 with standard internal hard drive and single ended backup device (DVD-RAM or Travan) in external 50-pin case. 10
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MX-2424 with standard internal hard drive, single ended backup device (DVD-RAM or Travan) in the front bay and two external hard drives. MX-2424 with standard internal hard drive, single ended backup device (DVD-RAM or Travan) in the front bay and external Orb Drive. MX-2424 with standard internal hard drive and second hard drive in the front bay. 11
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MX-2424 with standard internal hard drive, second hard drive in the front bay and a single-ended backup device (DVD-RAM or Travan) in an external 68-pin case. MX-2424 with standard internal hard drive, second hard drive in the front bay and a single-ended backup device (DVD-RAM or Travan) in an external 68-pin case. MX-2424 with standard internal hard drive, second hard drive in the front bay and an external Orb drive. 12
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MX-2424 with standard internal hard drive, second hard drive installed in the front bay and two hard drives connected in external 68-pin cases. MX-2424 with standard internal hard drive and three hard drives connected in external 68-pin cases. 13
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MX-2424 with internal hard drive removed/disconnected and four hard drives connected externally in 68-pin cases. SCSI Cable Length The total cable length of a SCSI chain includes the internal cabling in the MX-2424 itself, all carriers and drive bays connected and the cable used to connect between any external drive cases. The MX-2424 supports a maximum cable length of 6 feet. This maximum length, however, is dependent on the quality of the SCSI cables in a chain. Number of SCSI Devices The MX-2
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Proper Termination A terminator provides electrical circuitry at the end of a SCSI chain to prevent the reflection of electrical signals when they reach the end of the chain. The SCSI bus requires termination only at the end of the SCSI chain. The MX-2424 includes an internal terminator as standard, which should not be removed. There are several types of SCSI Termination for use with external devices. Only the specified types of terminators described below should be used with the MX-2424. When
