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Hand-Held SCSI CABLE TESTER
Model ST1000

  • Simple to Use - Fast - Inexpensive
  • All tests are run from one end of the cable
  • Tests: Continuity
  • Tests: Integrity (Twisted Pairs)
  • Tests: Bus Type and Termination Power
  • Tests cables with High Density 68 pin (HD 68) connectors.
  • Tests cables with VHDCI or 50-pin connectors with the use of adapters.

Made in USA (designed, manufactured, tested)

Made in USA

Paralan's ST1000 Hand-Held SCSI Cable Tester checks for continuity, twisted pair integrity, bus type and termination

ST1000 is the world's only hand-held SCSI cable tester designed to fully test cable assemblies made to SCSI specifications!

At today's SCSI speeds continuity tests alone are no longer sufficient to qualify SCSI cable assemblies. Proper testing of SCSI cables includes a test for correct connection of twisted pairs and shielding. Continuity tests check only that wires are making connections on both ends of a cable.

Twisted pairs in the cable must be matched with the correct SCSI signal pairs – otherwise, it is possible to have a SCSI signal pair placed on wires that are not in the same physical twisted pair (see diagram below right). This will cause crosstalk with resultant SCSI errors.

The ST1000 verifies correct signal pairing.

Twisted pairs in the cable must be matched with the correct SCSI signal pairs - otherwise, it is possible to have a SCSI signal pair placed on wires that are not in the same physical twisted pair. This will cause crosstalk with resultant hard to troubleshoot SCSI errors Twisted pairs in the cable must be matched with the correct SCSI signal pairs otherwise, it is possible to have a SCSI signal (signal and ground pair) placed on wires that are not in the same physical twisted pair. This will cause crosstalk with resultant SCSI errors

FEATURES

Paralan's ST1000 Hand-Held SCSI Cable Tester checks for continuity, twisted pair integrity, bus type and termination      

The ST1000 SCSI Cable Tester is designed with an emphasis on simplicity of use. Connect a cable, press a switch and the LCD indicates the test results within 5 seconds. In addition to Continuity and Integrity, the ST1000 also tests to determine that the critical REQ and ACK signal pairs are located in the inner layers of the cable.


All tests are made with only one end of the cable connected to the tester. Therefore it is not necessary to remove installed cables.


For details refer to SCSI Cables: More than a Couple of Connectors and a Few Pieces of Wire, and our article comparing the Paralan Models ST1000 and ST123.

PDF version of this data sheet.

Prevent Costly Downtime

When a SCSI system has a cable problem the symptoms vary greatly. Examples of problems caused by poorly made SCSI cable:

  1. The most extreme -- the system won't run.
  2. The system partially boots before stopping.
  3. The system will run if an extra terminator is inserted somewhere.
  4. The system will run with some lengths of cable but not others even though the total cable length is within SCSI limits.
  5. The system runs slower than expected.
    * NOTE: SCSI systems can mask intermittent transmissions with SCSI "retries" and Domain Validation, which may reduce system throughput.
  6. The system runs for long periods but will then hang-up.
  7. The system runs for long periods but will then have errors.
    * NOTE: Specific data pattern combinations can cause errors if cable pairs are not properly assigned within the cable. Random intermittent errors or SCSI "hangup" may occur; resulting in excessive system installation delays and costs.

Tests

Continuity Test:
A. Tests pin to pin connection of cable.
B. Checks for opens.
C. Checks for wire to wire shorts.
D. Checks for wire to shield shorts.
E. Checks the shield. A shield failure is noted separately,
so ribbon cables may be tested.
F. Checks for terminations.
Paralan's ST1000 SCSI Cable Tester checks for continuity, twisted pair integrity, bus type and termination
Integrity Test:
A. Tests both wide and narrow cable for correct signal pair/cable pair matching.
B. Tests for correct pair location in cable.
C. Checks for terminations.
Paralan's ST1000 SCSI Cable Tester checks for continuity, twisted pair integrity, bus type and termination
SCSI Bus Test:
When connected to a powered SCSI bus:
A. Display: Disconnect the other end from the SCSI bus.
B. Display: Term Power Presence.
C. Display: Bus Type - LVD, HVD, SE.
D. Display: Diffsense Voltage.
Paralan's ST1000 SCSI Cable Tester checks for continuity, twisted pair integrity, bus type and termination

Specifications For ST1000 SCSI Cable Tester:

Environmental
Operating temperature: 0-50C (32-122F)
Storage temperature: -20C to + 70C (-4-158F)
Relative humidity: 5-95% non-condensing
International Compliance:
CE
MTBF
500,000 Hours
SCSI Cables tested
68-pin High-Density
With adapters:
68-pin VHDCI
50-pin High-Density
50-pin Centronic type
50-pin 2 x 25 pin IDC

- Specifications subject to change without notice -

Connector
68-pin High-Density Female

Known as the 68-pin high-density SCSI connector. This pin-and-socket connector is also called the SCSI-3 Connector. The SCSI recognized version has thumbscrew fasteners. A few SCSI devices have used the latch version. Used for 8-bit Wide SCSI devices. The SCSI spec terms it the Alt 3, P-cable connector
Power
9V Alkaline Battery
Battery Life: 200 Tests
Display includes Battery Life Indicator
Weight
10.2 oz (288g)
Shipping weight: Approx 2 lbs (0.9 kg)
Dimensions
7.25" x 3.63" x 1.25" (184mm x 92mm x 32mm)
Installed Sacrificial Connector adds 0.75" (19mm) to Height
Loopback Module: 2.83" x .75" x 1.65" (72 x 19 x 42mm)
Warranty Two Year Limited Warranty
(excluding battery and connectors)

Ordering Guide for Model ST1000:

Model Number Description
ST1000
ST1000 SCSI Cable Tester. Includes: Carrying Case, Loopback Module AD1002, Sacrificial connector AD1001, User Manual, 9V Battery 6141.
    For quantity purchases contact Paralan

Options Description
Options and Adapters marked with an asterisk (*) are not suitable for any use other than as cable adapters for the ST1000.
6141
Battery: Standard 9VDC
AD1001
Sacrificial Connector, 68 Pin high density -- one end male connector one end female connector. Plug male into mating connector and screw down locking nuts. Make all connections into and out of the other end of the adapter thus reducing wear on the ST1000 connector
Sacrificial Connector, 68-Pin high density -- one end male connector one end female connector. Plug male into mating connector and screw down locking nuts. Make all connections into and out of the other end of the adapter thus reducing wear on the ST1000 connector *.
AD1002
AD1002 Loopback Module, This adapter provides needed connections on one end of a cable to allow the ST1000 to perform testing when connected to the other end of the cable
Loopback Module, This adapter provides needed connections on one end of a cable to allow the ST1000 to perform testing when connected to the other end of the cable *.
 
The following are optional adapters:
AD1003
AD1003, 68-Pin High Density male connector to 68-Pin VHDCI female connector
68-Pin High Density male connector to 68-Pin VHDCI female connector.
AD1004
AD1004, 68-Pin High Density male connector to 50-Pin High Density female adapter
68-pin HD male to 50-pin HD female adapter *.
AD1005
AD1005, 68-Pin High Density male to 50-Pin Centronic type female adapter
68-pin HD male to 50-pin Centronic type female adapter *.
AD1006
68-pin HD male to 2 x 25 pin IDC male adapter *. Not currently available.

Note: In most cases when testing cables with other than 68-pin HD connectors, two adapters will be needed.

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Paralan Corporation 4655 Ruffner Street, San Diego, CA 92111
Sales: (800) 479-7719 | Tel.: (858) 560-7266 | Fax: (858) 560-8929 | E-mail: info@paralan.com
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