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STARLINE 11
SG2-DRT-3X Installation Sheet
8
Continue to route the two cables alongside the PIC and under the fiber tray in the SG2000
lid as illustrated in Figure 10.
9 Attach DR MCX 1 connector to RF INPUT A and DR MCX 2 connector to RF INPUT B on top of
the SG2-DRT-3X (Figure 10).
10 Use tie straps to loosely secure the two cables to the PIC cable as an assist in cable
management.
11 Confirm that the green LED (ON), located on the top panel of the SG2-DRT-3X is
illuminated to confirm enable status. A delay of approximately ten seconds before
illumination is normal.
12 Review return-path system levels:
Each input of the SG2-DRT-3X is configured to drive the laser to the recommended level of
+15 dBmV. If available, use a test adapter cable to measure levels directly at the SG2 ICS
board assembly.
Use TP XMTR B to monitor the levels of the two combined ports. Pad XMTR B is used to
adjust the level into the XMTR.
Use the JXP TP return-path locations on the E-pack for the two ports that have been
segmented.
13 Install a JXP-15 in the optical transmitter A pad location, illustrated in Figure 9.
14 Replace the E-pack cover, taking care not to pinch any cables.
15 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.
Installing the SG2-DRT-3X in the SG2000 Node in a 1X or 2X Configuration
The SG2-DRT-3X transmitter can operate with three data streams. If you install the
SG2-DRT-3X in an SG2000 that will remain combined (1X) or split (2X) return, an additional
cable is provided to properly load the transmitter.
To properly cable the SG2-DRT-3X for a combined or split return:
1 Verify that the return path module is either an RPM/C combined (1X) or an RPM/S split
(2X) model.
2 Insert the provided cable from the redundant transmitters’ D-subconnector into RF INPUT A
or
INPUT B on the SG2-DRT-3X.
3 Change the 15 dB JXP pad at the XMTR A location to a 5 dB JXP.