Anritsu S331C - Manual (Page 16)

Chapter 2
Functions and Operations
Introduction
This chapter provides a brief overview of the Site Master functions and operations, provid-
ing the user with a starting point for making basic measurements. For more detailed infor-
mation, refer to Chapter 4, Measurements and Chapter 7, Software Tools.
The Site Master is designed specifically for field environments and applications requiring
mobility. As such, it is a lightweight, handheld, battery operated unit which can be easily
carried to any location, and is capable of up to 2.5 hours of continuous operation from a
fully charged battery. Built-in energy conservation features allow battery life to be extended
over an eight-hour workday. The Site Master can also be powered by a 12.5 Vdc external
source. The external source can be either the Anritsu AC-DC Adapter (P/N 40-115) or 12.5
Vdc Automotive Cigarette Lighter Adapter (P/N 806-62). Both items are standard accesso-
ries.
Test Connector Panel
The connectors and indicators located on the test panel are listed and described below.
12.5-15VDC
(1100 mA) 12.5 to 15 Vdc @ 1100 mA input to power the unit or for battery charging.
WARNING
When using the AC-DC Adapter, always use a three-wire power cable connected
to a three-wire power line outlet. If power is supplied without grounding the equip-
ment in this manner, there is a risk of receiving a severe or fatal electric shock.
Battery
Charging Illuminates when the battery is being charged. The indicator automatically shuts
off when the battery is fully charged.
External
Power Illuminates when the Site Master is being powered by the external charging unit.
Serial
Interface RS232 DB9 interface to a COM port on a personal computer (for use with the
Anritsu Software Tools program) or to a supported printer.
RF Out RF output, 50
W impedance, for reflection measurements.
RF In RF input, 50
W impedance, for spectrum analysis measurements.
RF Detector RF detector input for the Power Monitor.
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