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)

3.3 Procedure II. Method 6C1-1 power meter cable assembly link loss test.

3.3.1 The equipment and materials in table 6C1-II shall be used to perform this procedure.

TABLE 6C1-II. Equipment and materials.

Description

Quantity

Wipes (NAVSEA DWG 6872811-18 or equal)

As required

Alcohol bottle with alcohol/2-propanol (sealable type)

Canned air or compressed air

As required

Measurement quality jumper cables (NAVSEA DWG 6877804)

As required

ST to ST adapter (Lucent 105 271 142 or equal)

As required

Hybrid adapter, ST to SC (AMP 503638-2 or equal)

As required

Hybrid adapter, ST to COTS connector

As required

LED light source (NSN 7Z 6625 01 304 1739 or equal)

As required

Power meter (NSN 7Z 6625 01 304 1739 or equal)

Protective caps (plastic)

As required

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 the connections.

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

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 cable assembly link

loss results are obtained with LED light sources with a CPR value

between 21 dB and 21.5 dB.

NOTE: A laser light source may be used for single mode optical fiber cable assembly link loss measurements.

NOTE: This procedure involves the use of Measurement Quality Jumper cables (MQJs). Dirty or defective MQJs will lead to high or unacceptable cable assembly loss values. MQJs used in these procedures should be clean and should be of known quality. Test organizations are encouraged to institute an MQJ verification program in which the quality of MQJs is regularly validated. Additional guidance on establishing an MQJ verification program can be obtained from the Naval Surface Warfare Center (see 1.1.1).

6C1-4

METHOD 6C1