Motorola SG4-DRT-2X Instruções de Operação descarregar pdf (Página 84)

4-12 Modules

SG4000 Installation and Operation Manual

Feature Description

Return Input JXP Attenuator

JXP style attenuator pad that enables you to make return path level

adjustments.

Ingress Control Switch (ICS)

Optional, active plug-in device that enables you to attenuate the return

path of the individual RF module in 0, -6 dB, and off states. It is

controlled through the optional EPIM or transponder module. You can

access the ICS by removing the RF module chassis cover.

FSB Board

In the event that the standard FSB is replaced, bench alignment of the new board is

recommended to ensure proper flatness is achieved. The controls on the FSB are illustrated in

Figure 4-8.

Figure 4-8

FSB board

Table 4-6 identifies and describes the controls on the FSB board.

Table 4-6

FSB board controls

Control Use

R1, R2, C1, C2

Adjusts the low end of the band.

R3, C3, C4

Adjusts the mid band.

Adjusts the high end of the band.

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Motorola SG4-DRT-2X Instruções de Operação Página 84