Change the 15 dB JXP pad at the XMTR A location to a 5 dB JXP.
3
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 a 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 transmitter’s D subconnector into RF INPUT A or INPUT B on the SG2-DRT-3X.
Replace the E-pack cover, taking care not to pinch any cables.
Install a JXP-15 in the optical transmitter A pad location, illustrated in Figure 10.
13
14
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.
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.
12
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 10 seconds before illumination is normal.
and DR MCX 2 connector to RF INPUT B on top of
9 Attach DR MCX 1 connector to RF INPUT A the SG2-DRT-3X (Figure 11).
Continue to route the two cables alongside the PIC and under the fiber tray in the SG2000 lid as illustrated in Figure 11.
8
STARLINE
11
