Motorola SG2-DRT-3X - Manual (Page 11)

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.