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G3S-800-140-031 Installation & Service Manual

044-05095 Rev. A 3-1 September 2001

Section 3 Operating Instructions

3-1 Introduction

This section contains operating instructions for the Multicarrier Cellular Amplifier System.

3-2 Location And Function Of Amplifier Module Controls And Indicators

Primary +27 Vdc power is applied to the amplifier via a 100-amp circuit breaker (ON-OFF) lo-

cated on the left side of the amplifier front panel.

The plug-in amplifier module RF control and indicators, located in the center of the amplifier front

panel between the cooling fans, are shown in figure 3-1. The status and RF control functions and

alarms are described in detail in the subsequent paragraphs.

Figure 3-1 G3S-800-140-031 Amplifier Module RF Control and Indicators

3-2.1 Voltage Indicators And On/Off/Reset Switch

3-2.1.1 +27VDC Indicator

Green LED. When lit, indicates that the +27 Vdc supply is greater than +21 Vdc and less than

+31 Vdc. If the +27 Vdc indicator goes out, the DC FAIL indicator will illuminate. This indicates

that the +27 Vdc voltage dropped below +21 Vdc.

3-2.1.2 +15VDC Indicator

Green LED. When lit, indicates that the +15 Vdc supply is greater than +12 Vdc and less than

+17 Vdc. If the +15 Vdc indicator goes out, the DC FAIL indicator will illuminate. This indicates

that the +15 Vdc voltage dropped below +12 Vdc or increased above +17 Vdc.

Summary of content (4 pages)

PAGE 1
G3S-800-140-031 Installation & Service Manual Section 3 Operating Instructions 3-1 Introduction This section contains operating instructions for the Multicarrier Cellular Amplifier System. 3-2 Location And Function Of Amplifier Module Controls And Indicators Primary +27 Vdc power is applied to the amplifier via a 100-amp circuit breaker (ON-OFF) located on the left side of the amplifier front panel.
PAGE 2
G3S-800-140-031 Installation & Service Manual 3-2.1.3 +5VDC Indicator Green LED. When lit, indicates that the +5 Vdc supply is greater than +2 Vdc and less than +7 Vdc. If the +5 Vdc indicator goes out, the DC FAIL indicator will illuminate. This indicates that the +5 Vdc voltage dropped below +2 Vdc or increased above +7 Vdc. 3-2.1.4 -5VDC Indicator Green LED. When lit, indicates that the -5 Vdc supply is greater than -7 Vdc and less than -2 Vdc.
PAGE 3
G3S-800-140-031 Installation & Service Manual Table 3-1 Amplifier Module Alarm Indicators Definition Alarm Mode LED MCPA Disable signal Condition Module (pin 4 inTable 2-1) Over Pwr Critical Red Disable High Over Pwr Critical High Temp Minor Red Red Disable Enable High Low High Temp Critical Red Disable High MCPA MCPA module output power >200 watts (Note 4) Input power >-2 dBm High temperature detected High temperature detected for longer than two minutes 14.
PAGE 4
G3S-800-140-031 Installation & Service Manual 3-3 Initial Start-Up And Operating Procedures The amplifier module has two operating controls, both located on the front face of the module: the power ON - OFF switch and the RF ON - ON/OFF/RESET switch (refer to figures 1-1 and 3-1). To perform the initial start-up, proceed as follows: 1. Verify that all input and output cables are properly connected.