R-tron Inc. APEX1933 用户手册

 

 

The following is a list of abbreviations and terms used in this manual. 

 

Abbreviation 

Definition 

AC 

Alternating Current 

CDMA 

Code Division Multiple Access 

DC 

Direct Current 

DL 

Downlink 

GUI 

Graphic User Interface 

LED 

Light Emitting Diode 

PSU 

Power Supply Unit 

RF 

Radio Frequency 

UL 

Uplink 

VSWR 

Voltage Standing Wave Ratio 

NCU 

Network Control Unit 

MCU 

Main Control Unit 

NMS 

Network Management System 

SNMP 

Simple Network Management Protocol 

 

AGC (Automatic Gain Control) 
AGC prevents the equipment from exceeding its maximum output power by reducing the gain 
automatically. AGC is used to adjust the gain to an appropriate level for a range of input signal 
levels

. 

 
ASD (Automatic Shutdown) 
ASD helps protect the amplifier from over load. ASD helps protect the network by preventing 
excessive signal output power. 
 
ASD does not: 
1. Prevent oscillation 
2. Protect from excessive input. 
 
There are three parameters: ASD Level, ASD Time, and ASD Iteration. 
If the output power exceeds higher than the “ASD LEVEL”, the equipment will shut down for “ASD 
TIME” seconds. If shutdown repeats “Iteration” times, the equipment will require manual re-start.