Shenzhen Coban Electronics Co. Ltd. CB900 用户手册
1. Introduction
This document describes the hardware interface, including interface specifications, electrical and
mechanical details, of the CB900 module that connects to the cellular device application.
1.1. Abbreviations
The following abbreviations are used in this document:
Abbreviation
Description
ACM
Accumulated Call Meter
ADC
Analog Digital Convertor
AMR
Adaptive Multi-rate
AMR- FR
AMR Full-rate
ADN
Abbreviated Dialing Number
APN
Access Point Name
CLIP
Calling Line Identity Presentation
CSD
Circuit Switched Data
DCD
Data Carrier Detect
DCE
Data Communication Equipment
DCS
Data Coding Scheme
DTE
Data Terminal Equipment
DTMF
Dual Tone Multi Frequency
DTR
Data Terminal Ready
EFR
Enhanced Full-rate
FR
Full-rate
GPIO
General Purpose Input Output
GPRS
General Packet Radio Service
GSM
Global Standard for Mobile Communications
IP
Internet Protocol
PDP
Packet Data Protocol
PDU
Packet Data Unit
PPP
Point-to-Point Protocol
RF
Radio Frequency
RTS
Ready To Send
SIM
Subscriber Identification Number
SMS
Short Messages Service
TCP
Transmission Control Protocol
UART
Universal Asynchronous Receiver Transmitter
UDP
User Data Protocol
USSD
Unstructured Supplementary Service Data