MIL-STD-2042-6B(SH)
TABLE 6C1-IV. Maximum component loss values.
|
Component |
Single mode |
Multimode |
Cable |
1.5 dB/km @ 1300 nm 1.5 dB/km @ 1550 nm |
4.5 dB/km @ 850 nm 2.0 dB/km @ 1300 nm |
Single terminus (light duty) connectors (mated pair) |
0.75 dB |
0.75 dB |
Multiple terminus (heavy duty) connectors (mated pair) |
0.75 dB |
0.75 dB |
COTS connectors (mated pair) |
0.75 dB |
0.75 dB |
Mechanical splice |
0.2 dB tuned 0.6 dB untuned |
0.2 dB tuned 0.6 dB untuned |
NOTE: If components other than those listed in table 6C1-IV are used, the loss value of these components must be included in the maximum acceptable loss. If the loss value for a component is not known, contact the Naval Surface Warfare Center (see 1.1.1) for assistance in determining the appropriate loss value.
Step 3 - If the measured loss (in either direction for multimode optical fiber cable assemblies) is 0.5 dB or more above the maximum acceptable loss, reject the optical fiber cable assembly. If the measured loss (in either direction for multimode optical fiber cable assemblies) is less than 0.5 dB above the maximum acceptable loss, disconnect and clean
all the connections and retest. If the loss (in either direction for multimode optical fiber cable assemblies) is still unacceptable, reterminate or replace the defective components.
Step 4 - If the optical fiber cable is not going to be immediately connected to its mating connectors, install protective caps over the optical fiber cable connectors.
6C1-9
METHOD 6C1
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