MIL-STD-2042-6B(SH)
Step 7 - Repeat step 3 through step 6 a minimum of three times (a maximum of
ten times) for the selected MQJ. (A wipe dampened with alcohol may be
used to clean the adapters/connectors and they may be blown dry with
air before making each connection.)
NOTE: The loss of the second MQJ end is measured next. If both ends of the MQJ have ST connectors on them, the loss of the "B" end is measured next.
Step 8 - Connect the ST to ST, ST to pin terminus, ST to socket terminus, or ST to MIL-S-24623 splice reference cable between the light source and the power meter and record the power at the meter (Pl) (see figure 6Fl-3). Disconnect the reference cable from the power meter.
Reference cable
ST
connector
Power meter adapter
FIGURE 6Fl-3. Connecting the reference cable.
NOTE: The time delay between the measurement of Pl and P2 shall be kept to a minimum to prevent inaccurate readings.
NOTE: The reference cable to light source connection shall not be disturbed between measurement of Pl and P2 to prevent inaccurate readings.
NOTE: For single mode fiber measurements, the reference cable may include a single loop with a diameter of 30 mm (l in) to eliminate higher order mode power.
Step 9 - Connect the MQJ to the reference cable and to the power meter using the ST adapter head (see figure 6Fl-4).
NOTE: For either pin or socket termini, the termini shall be inserted into
MIL-C-28876 plug or receptacle connectors and mated.
NOTE: For MIL-S-24623 splices, the splice ferrules shall be mated using a splice alignment clip as specified in MIL-STD-2042-2.
6Fl-4
METHOD 6Fl
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