Motorola SG4-DRT-2X Instrucciones de operaciones descargar pdf (Pagina 27)

Overview 2-13

SG4000 Installation and Operation Manual

board. A flexible power-distribution design enables you to power the node from any of the six

RF/AC ports. Using fuses and shunts, you can configure the node to distribute power to the

remaining active ports. You can also power the node locally through either end while a second

cable-plant power supply loops through the other end of the node.

You can power the SG4000 from either 60 VAC or 90 VAC system power supplies. There is no

voltage selection jumper to relocate. The 20-ampere fuses, installed at the factory, provide

power passing to additional amplifiers. Section 3, “Bench Setup and Operation,” Powering the

Node, discusses fusing options that are also diagrammed in Figure 3-36. Figures 3-37 and 3-38

illustrate the location of the fuses.

Port Entry

The SG4000 housing base features six RF/AC ports that are physically identical. You can power

the node from any of these ports and use any port to support an RF module for custom

installations.

The SG4000 port entry seizure mechanism contains a 1/16-inch hex-head screw that travels

within a threaded ferrule to secure the connector.

This screw is captive and should not be backed out by using excessive force.

Figure 2-9 illustrates a top view of the port entry board and the seizure mechanism.

Figure 2-9

Port entry board – seizure mechanism

Seizure mechanism

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 107 108

Sin comentarios

Motorola SG4-DRT-2X Instrucciones de operaciones Pagina 27