Motorola SG4-DRT-2X Instrucciones de operaciones descargar pdf (Pagina 41)

Bench Setup and Operation 3-13

SG4000 Installation and Operation Manual

Figure 3-12 illustrates the forward segmented 2X board. Jumper J4 is shown in the normal

position that enables signal flow to each output connector. When configuring for a single output,

move

J4 to the lower position, thereby terminating output connector J5 (OUT 1).

Figure 3-12

Forward segmented 2X board

OUT 2

OUT 1

Figure 3-13 illustrates the signal flow through the forward segmented 2X board. Loss is

measured at 870 MHz.

Figure 3-13

Forward segmented 2X – signal flow

Loss = 8.7 dB

-4.5 dB

-4.0 dB

Out 1

Out 2

To set up the forward segmented 2X option:

1 Confirm that an SG4-R/* receiver is installed in lid slots 1 and 7.

2 Confirm that two forward segment 2X boards are installed in the forward configuration

board locations 1 and 4, as illustrated in Figure 3-11.

3 Install an RF cable from each SG4-R receiver to the respective forward segment 2X board.

The RF cable should be approximately five inches long and have black boots on the

connector signifying the forward path.

4 Connect the appropriate forward RF cables from the SG4-RF modules to the forward

segment 2X board.

5 Position jumper J4 as required for the number of active outputs you are using.

In a typical installation, the RF modules in Ports 1 and 3 are connected to the forward

segment 2X board in configuration location 1. The RF modules in Ports 4 and 6 are

connected to the forward segment 2X board in configuration location 4.

6 Ensure that the PIC cable is properly connected to the lid router board and center

power-distribution board in the node base.

7 Route the fiber service cable into the node and fiber tray.

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Motorola SG4-DRT-2X Instrucciones de operaciones Pagina 41