MIL-STD-2042-6B(SH)
1. SCOPE.
METHOD 6L1
CABLE TOPOLOGY END-TO-END RETURN LOSS TEST
1.1 Scope. This method describes procedures for performing a cable topology return loss test on FOCT links. Optical return loss testing of FOCT links is performed on single mode optical fiber cable FOCT links only when specified by the contract.
2. REQUIRED EQUIPMENT AND MATERIALS.
2.1 Equipment and materials. The equipment and materials in table 6L1-I shall be used to perform these procedures.
CAUTION: Throughout the testing process, cleanliness is critical to obtaining a correct optical measurement. Make sure that your hands and the work area are as clean as possible to minimize the ingress of dirt into the connector parts.
TABLE 6L1-I. Equipment and materials.
|
Description |
Quantity |
Optical Return Loss Meter (Noyes Fiber Systems model ORL 3 or equal) |
1 |
Optical Return Loss Meter (ORLM) interface cable (COTS SC/APC to COTS SC jumper cable) |
1 |
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 |
Measurement quality jumper cables (NAVSEA DWG 6877804) |
As required |
Wipes (NAVSEA DWG 6872811-18 or equal) |
As required |
Alcohol bottle with alcohol/2-propanol or equal (sealable type) |
1 |
Canned air or compressed air |
As required |
Protective caps |
As required |
3. PROCEDURE.
3.1 Safety summary. The following safety precautions shall be observed:
a. When visually inspecting an optical fiber, never stare into the end of a fiber connected to a laser source or LED.
6L1-1
METHOD 6L1
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