Specifications

SATA-IO Confidential 40

The tester shall ensure that the cable assemblies are clearly labeled so that each line in a cable assembly can be

uniquely identified. For a standard internal cable assembly, a suggested labeling method is:

• Each of the cables is labeled

• The two ends of the cable are also labeled, e.g. Recept_A, Recept_B

• The signal lines use the pin names provided in the specification. For standard internal connectors table 2 and

Figure 29 of section 6.1.3.2, in the Serial ATA Revision 2.6 specification labels the individual signal lines as

S1, S2, S3, …S6, S7. It also defines Pair A as being the combination of signal lines S2 and S3, while Pair B

is defined as the combination of signal lines S5 and S6.

If a family of cables is being tested, all tests shall be performed on both the longest and shortest lengths unless

otherwise noted in a specific test.

Tester must save all the calibration data (i.e. screen shot) that is done daily at a minimum, if not every cable

evaluation. Valid calibration data must be available per product for review, even if the same calibration data (i.e.

daily) is used for multiple products. It is required that calibration be completed for this area of testing to ensure

consistent measurements and environment impacts.

2.7.1. SI-01 : Mated Connector Impedance

2.7.1.1. Cable Assembly Expected Behavior

See section 6.5.1.1, Table 16 of the Serial ATA Revision 2.6 specification.

The test shall be performed on both ends of the cable assembly, for each differential pair of the assembly.

• See section 6.5.2.4, Table 21, Procedure P1 of the Serial ATA Revision 2.6 specification.

Measurement Requirements

• This test is normative for internal SATA cables and informative for eSATA cables.

• For an internal SATA and eSATA cable:

o After completing the common procedures (and before doing the measurement) the instrument rise

time shall be set or the results filtered for a minimum of 55 ps to a maximum of 70 ps (20-80%)

system rise time. The system rise time shall be set as close to 70 ps (20-80%) as practical.

Pass/Fail Criteria

For an internal SATA and eSATA cable:

• Mated Connector Differential Impedance 100 Ohms ±15%

2.7.2. SI-02 : Cable Absolute Impedance

2.7.2.1. Cable Assembly Expected Behavior