Motorola SG4-DRT-2X Instruções de Operação descarregar pdf (Página 103)

Specifications A-3

SG4000 Installation and Operation Manual

Table A-6 lists the typical power requirements for the SG4-PS power supply module. In a

maximum configured capacity, including efficiency and power factor, the following are typical

measurements.

Table A-6

SG4-PS power requirements

Power Supply Modules DC Current (Amps@ 24VDC) Power Consumed (Watts)

One

2.9 90

Two

5.8 176

Three

5.8 179

Table A-7 lists distortion and c/n performance for the SG4000 with a load of 77 channels.

Table A-7

SG4000 performance, with 77 channels

Parameter Specification

Carrier-to-Composite Noise (CCN)

50.5 dB Minimum

Composite Triple Beat (CTB)

66 dBc Maximum

Composite Second Order (CSO)

62 dBc Maximum

Note:

Link: SG4-R w/GX2-LM1000*, 77ch, 20km

Loss budget 9.0 dB

12.5 dB tilt 870 MHz virtual level of 53 dBmV

310 MHz of compressed data 6 dB below analog channel level

Output level (870, 550, 55 MHz), 53/48.5/40.5 dBmV

Table A-8 lists the RF performance specifications for the SG4-IFPT laser transmitter.

Table A-8

SG4-IFPT RF specifications

Parameter Specification

Nominal RF input impedance

75 Ohms

RF passband

5 MHz through 65 MHz

Flatness (peak to valley)

1.00 dB maximum

RF input return loss

18 dB minimum

Recommended total input power

+22 dBmV

Optical output power

0.4 mW (−4 dBm), nominal

Noise Power Ratio over dB Input

Dynamic Range Typical

30 dB NPR over 10 dB dynamic range

1 2 ... 98 99 100 101 102 103 104 105 106 107 108

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