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CH2124

HIGH SPEED INTERNET MODEM FAMILY

Cermetek Microelectronics 

HIGH SPEED INTERNET MODEM FAMILY

CH2124

-

CH2156

-

CH2160

-

Send/Retrieve Email. 2 I/O Ports 2400bps.

Send Email Only. 2 I/O Ports, 56kbps.

Send/Retrieve Email. 2 I/O Ports, 56kbps.

FEATURES

• Point-to-Point Protocol (PPP)

• Password Authentication Protocol (PAP) and

challenge Authentication Protocol (CHAP) to

connect to the Internet.

• TCP/IP and Simple Mail Transfer Protocol (SMTP)

to send emails.

• TCP/IP and POP3 to retrieve and/or delete emails.

• On Demand and event driven email transmission

and retrieval.

• Programmable using serial interface or using

PSTN.

• Remote programming using PSTN.

• Supports V.90, V.34bvis, V.34, V.22bis, V.22A/B

V.23, V.21, Bell 212A and 103.

• Supports V.80 Synchronous operation.

• Error correcting: V.42 LAPM, MNP 2-4 and

MNP10.

• Data Compression: V.42bis and MNP5.

• MNP10 Data throughput enhancement for cellular

operation.

• DTE serial interface with speeds up to 230.4kbps.

• Automatic baud rate adaptability utilizing speed

sensing, flow control and data buffers.

• Send & Receive FAX Class 1, Group 3 supported.

• Serial V.24, 5 volt interface.

• NVRAM directory and stored profiles.

• Standard AT Command structure with extensions.

• Cermetek @T® AT Command extensions.

• Built-in DAA with 1500 VAC RMS isolation 2122V

peak surge protection.

• UL 1950 and CSA C22.2 950 (Third Edition)

Listed, Reference UL File E104957.

• FCC Part 68 Approved/DOT CSA CS-03 Part I

approvable.

• Pin-for-Pin compatible with CH179X and CH2056

HS Family of modems.

• +5 Volt operation with zero power option.

• Small size: 1.35” x 1.97” x 0.55” (nominal).

• Low Cost 2400bps version (CH2124).

• Low cost iModem Network ISP providing email to

Voice, Fax, ftp, and email re-routing services.

• 90 day free trial subscription to iModem Network

ISP provided with each iModem.

INTRODUCTION

Direct machine-to-machine interaction represents the

next logical extension of the internet. Cermetek

internet modem (iModem) products are designed to

exploit the internet to facilitate the utilization of

machine-to-machine interactions. Using email,

information can easily be transferred between systems

and can be transmitted/retrieved at will. Internet email

provides low cost, near real time multi-path

communication.

After initial setup, iModem machine-to-machine

activities proceed transparently with the level of control

desired by the user. This includes fully autonomous

(i.e., no human intervention) operation which takes

advantage of the internal intelligence of the iModem.

Cermetek’s iModem products operate at +5 Volt and

have a zero power option.

OVERVIEW OF THE CH21XX iMODEM

A conceptual representation of the iModem in the

embedded environment is presented in Figure 1. As

can be seen in this figure, the iModem requires the

input of various internet parameters to function

properly: user name, user ID, user password, ISP

telephone number, ISP mail server address, local

email address, destination email address and user

specified email message/input port status. Cermetek’s

iModem products provide the user with the ability to

assign a unique unit name to each iModem thereby

affording the user the opportunity to create a

customized identity for each system containing an

iModem product.

The iModem device stores all user-supplied

parameters in internal memory. These parameters will

not be lost when power is removed. The user supplied

parameters are loaded into the iModem via the

iModem’s RS232 serial interface port and is done

utilizing

either

Cermetek’s

iNetWizard®

telecommunications software package or, alternatively,

one of a variety of commercially available terminal

emulation software packages. iNetWizard® is

provided free of charge by Cermetek and runs on any

standard PC operating in the Microsoft Windows

environment. Cermetek also manufactures a

companion CH21XX Evaluation Board that is designed

to facilitate the hardware connections required to

program the iModem as well as providing a reliable

platform to assist with system level debugging.

2003 Cermetek Microelectronics, Inc.

Page 1

Document No. 607-0017 Revision G1 (06/03)

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