SIM800L datasheet(70/73 Pages) SIMCOM

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Smart Machine Smart Decision

SIM800H&SIM800L_Hardware Design_V2.02

2015-07-27

III.Terms and Abbreviations

Table 61: Terms and abbreviations

Abbreviation

Description

ADC

Analog-to-Digital Converter

AMR

Adaptive Multi-Rate

Coding Scheme

CSD

Circuit Switched Data

CTS

Clear to Send

DTE

Data Terminal Equipment (typically computer, terminal, printer)

DTR

Data Terminal Ready

DTX

Discontinuous Transmission

EFR

Enhanced Full Rate

EGSM

Enhanced GSM

ESD

Electrostatic Discharge

ETS

European Telecommunication Standard

Full Rate

GPRS

General Packet Radio Service

GSM

Global Standard for Mobile Communications

Half Rate

IMEI

International Mobile Equipment Identity

Li-ion

Lithium-Ion

Mobile Originated

Mobile Station (GSM engine), also referred to as TE

Mobile Terminated

PAP

Password Authentication Protocol

PBCCH

Packet Broadcast Control Channel

PCB

Printed Circuit Board

PCL

Power Control Level

PCS

Personal Communication System, also referred to as GSM 1900

PDU

Protocol Data Unit

PPP

Point-to-point protocol

Radio Frequency

RMS

Root Mean Square (value)

RTC

Real Time Clock

Receive Direction

SIM

Subscriber Identification Module

SMS

Short Message Service

Terminal Equipment, also referred to as DTE

Transmit Direction

UART

Universal Asynchronous Receiver & Transmitter

URC

Unsolicited Result Code

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