Motorola SG4-DRT-2X - Manual (Page 14)

14 STARLINE
9 Route and connect the fiber service cable.
10 Apply power to the node. Allow five to ten seconds for the system self-diagnosis to complete.
11 Verify that the green LED ( ENABLE ), located on the top panel of each SG4-DRT-2X, is
illuminated to confirm enable status.
12 Measure the RF power at each channels test point on the top of each SG4-DRT-2X.
The test point is a
−20 dB test point located after the JXP pad location and indicates the
level into the SG4-DRT-2X.
13 Place the proper JXP pad into each channels pad facility to achieve the nominal total power
level at the test point of
−5 dBmV.
14 Review return-path system levels.
The SG4-DRT-2X is configured to drive the laser to the recommended level (
+15 dBmV)
when the total combined power at the housing ports connected to each leg of the segmented
return board is approximately
+28 dBmV.
15 Measure the optical power level at the dc test point using a multimeter. The scaled voltage
at this test point is 0.5 V/mW.
16 Secure all cables and fibers.
17 Close the housing and use a torque wrench to progressively tighten the housing bolts to a
final torque of 12 ft-lbs. in the sequence stamped on the housing lid.
For more specific information regarding return path setup procedures, refer to the supplemental
document Return Path Level Selection, Setup, and Alignment Procedure.
SG4-DRT-2X Installation Sheet