MIL-STD-2042-6 Fiber Optic Cable Topology Installation Standard Methods For Naval Ships Tests Part 6 Of 7 PartsThis standard practice provides detailed methods for testing optical fiber cable installations.

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MIL-STD-2042-6B(SH)

TABLE 6F1-I. Equipment and materials - continued.

Description

Quantity

Protective caps (plastic)

As required

ST adapter (Lucent 105 271 142 or equal)

MIL-C-28876 plug connector

MIL-C-28876 receptacle connector

ST termination type power meter adapter

Single socket terminus power meter adapter

Single pin terminus power meter adapter

Splice ferrule termination type power meter adapter

NOTE: Ensure the test equipment calibration is current.

NOTE: Use a wipe dampened with alcohol to clean the adapters/connectors and blow them dry with air before making connections.

NOTE: Identify and label all of the measurement quality jumper cables to be evaluated.

NOTE: Reference cables are cables constructed using fibers and connectors with tightened geometrical specifications (for example, diameter, concentricity). For more information on reference cables, see EIA/TIA-455-171.

NOTE: The LED light source shall have a CPR value (refer to TIA/EIA-526-14)

not less than 21 dB and not greater than 22 dB when measured into a

62.5 um fiber at a wavelength of 1300 nm. Best FOCT end-to-end

attenuation results are obtained with LED light sources with a CPR

value between 21 dB and 21.5 dB.

NOTE: Make sure that both the light source and power meter have been energized long enough to have stable performance before making measurements.

NOTE: A laser light source may be used for single mode optical fiber MQJs. Step 1 - Select an MQJ.

NOTE: The loss of the MQJ end with an ST connector is measured first. If both ends of the MQJ are terminated with ST connectors, the ends shall be identified as "A" and "B" and the loss of "A" measured first.

Step 2 - WARNING: Do not look into the end of a fiber connected to an LED or laser diode. Light may not be visible but can still damage the eye.

Connect the ST to ST reference cable between the light source and the power meter and record the power at the meter (P1) (see figure 6F1-1). Disconnect the reference cable from the power meter.

6F1-2

METHOD 6F1