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Phaser 840


Connecting SCSI devices

Required items

  • A SCSI peripheral cable for each SCSI device.
  • The printer uses a SCSI-2, 50-pin connector.
  • One SCSI cable terminator, unless one of the SCSI devices has an internal terminator.

To order supplies and accessories, contact your local dealer or visit the Xerox web site at www.tek.com/supplies.

012-1465-00

SCSI-2 HD to SCSI-1 LD cable

50-pin high-density plug to 50-pin low-density plug;
2.0 meters (6.56 feet)

Connects the printer's SCSI port to a hard disk drive or a scanner SCSI port.

012-1299-00

SCSI-1 LD to Macintosh SCSI cable

50-pin low-density plug to Macintosh SCSI 25-pin plug

Combine with 013-0297-00 to connect the printer's SCSI port to a hard disk drive with Macintosh SCSI 25-pin plug.

013-0297-00

SCSI-1 LD to SCSI-2 HD adapter

SCSI adapter: converts 50-pin low-density plug to 50-pin high-density plug

Use with either 012-1465-00 or 012-1299-00 to convert a low-density SCSI connection to a high-density SCSI connection.

Connection overview

  • Determine which SCSI device has which SCSI ID number:
    • The printer is SCSI ID 7.
    • The optional IDE internal hard drive is SCSI ID 6.
    • For SCSI devices, select SCSI ID numbers 0 - 5.
  • Turn off the printer.
  • Turn off the SCSI device.
  • Connect SCSI cables.
  • Check termination.
  • Connect a SCSI device.
    • Scanner
    • Hard disk drive
  • Turn on a SCSI device.
  • Turn on the printer.
  • Initialize the hard disk drive


Connecting one SCSI device


CAUTION
To avoid damaging components, before you connect or disconnect a SCSI cable, turn off the printer, then turn off the SCSI device.

  1. Turn off the printer first, then turn off the SCSI device.
  2. On the SCSI device, set a unique SCSI ID number ( 0 - 5; the printer is 7 and the optional IDE internal hard drive is 6).
  3. Connect the SCSI device to the printer:
    1. Connect the SCSI cable to the SCSI device; you will need a high-density SCSI connector to connect to the printer.
    2. Check termination (not required if the SCSI device has a built-in terminator).
      • The printer has an internal terminator.
      • The printer must always be at one end of the chain with a terminator (or a device with an internal terminator) at the other end.
      • Most SCSI hard disks are shipped with an internal terminator that is active.
      • If the SCSI device does not have an internal terminator, add one.

      • NOTE
        Devices that require power from another device (TERMPWR pin 38) may not terminate properly.

      • For termination information on any SCSI device, refer to its documentation.
    3. Connect the SCSI cable to the printer.
    4.  

  4. Turn on the SCSI device first, and then turn on the printer.
  5. If you have a SCSI hard disk, see Initializing a formatted SCSI device, and Enabling and disabling Sys/Start Job execution.


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