6

3.4 Cable Retention

Procedure:

Testing was performed on samples subjected to Twist Test. A coupling was secured to the traversing stage of an

Instron tensile tester. At 0.3 m from the coupling/connector, the cable was secured to the stationary base by

wrapping the cable 3 times around a 3" mandrel. A load of 15 lbs. @ 0

° is applied to the connector for 5 seconds,

then released. Additional testing was performed after the first cable Retention Test in the same manner, but with 4.5

lbs. @ 90

°. Values for Insertion Loss and Return Loss are measured 10 seconds after releasing the load.

Sample Size: 10

Results:

(Cable Retention 15 lbs. @ 0

°)

Loss (dB)

Return Loss (dB)

Wavelength

Mean

Std. Dev.

Mean

Std. Dev.

850

0.15

0.07

-24.0

1.25

1310

0.10

0.06

-26.1

1.56

(Cable Retention 4.5 lbs. @ 90

°)

Loss (dB)

Return Loss (dB)

Wavelength

Mean

Std. Dev.

Mean

Std. Dev.

850

0.17

0.07

-23.6

1.12

1310

0.11

0.05

-26.0

1.77

4.0 Mechanical Tests (Group 2)

4.1 Vibration

Procedure:

Ten samples from group 2 were subjected to a vibration test from 10 to 55 Hz, 1.5 mm p-p amplitude. The

samples were attached to the vibration table via a 10 port patch panel. The connectorized samples were tested in

3 axis (X, Y, Z) for 2 hours in each axis, at a sweep rate of 45 Hz per minute.

Sample Size: 10

Results:

LOSS (dB)

RETURN LOSS (dB)

Initial

After Vibration

Wavelength

Mean

Std. Dev.

Mean

Std. Dev.

850

-25.0

1.42

-24.3

1.30

1310

-27.6

1.54

-27.4

1.58

Initial

After Vibration

Wavelength

Mean

Std. Dev.

Mean

Std. Dev.

850

0.12

0.07

0.11

0.07

1310

0.12

0.06

0.10

0.07