CH2165 Ver la hoja de datos (PDF) - Cermetek Microelectronics

Número de pieza

componentes Descripción

Lista de partido

CH2165

HIGH SPEED INTERNET MODEM FAMILY

Cermetek Microelectronics 

Cermetek Microelectronics, Inc.

Send, Retrieve and Delete Email: CH2124/60. The

CH2124/60 products send and retrieve email of modest

length. The pre-stored message length is approximately

125 ASCII characters. Messages are stored in Flash

ROM. Streaming email is not supported in the

CH2124/60 iModem products.

Refer to Cermetek Application Note # 155, @T®

Command Set Description and Usage For CH2124/60

iModems, for more details.

iModem Hardware Configuration. Each CH2160/65

(CH2124) iModem contains a fully functional 56kbps

(2400bps) modem and the hardware and firmware

needed to provide the internet capability. Because of

the unique architecture of Cermetek iModems, these

iModems have the ability to operate as either an

internet email transceiver or as a high reliability analog

modem. Additionally, the CH2124/60 products support

user remote access which can be used to reprogram or

reconfigure an iModem deployed in the field.

The iModem Family of products are pin compatible with

the CH179X and CH2056 modem products. Referring

to Figure 2, the CH21XX iModem Family consists of an

industrial grade high speed modem module and a µP

controller with associated internal logic. The µP

controller and the logic provide all the functions

required for internet communication via standard PSTN

telephones lines. The CH2165 contains an additional 8

Mbytes of RAM and 2 Mbytes of Flash ROM. All

CH21XX iModem products utilize TCP/IP, PPP, PAP,

CHAP, SMTP and POP3 internet protocols.

Required External Connections. The iModem

requires an external RJ-11C jack for the PSTN line

connection. An CCITT V.24 serial interface is required

when host processor control of the iModem is required

in the specific application. All retrieved emails are

presented to the host system for further processing

and/or retention via the serial interface.

Approvals. The CH21XX iModem Family is FCC Part

68 approved, UL 1950 and CSA C22.2 950 (Third

Edition) listed and Canadian DOT CSA CS-03

approvable.

Physical Dimensions. The modules are designed for

PCB through-hole mounting and are 1.35” x 1.97” x

0.55” in size.

iMODEM EVALUATION BOARD

Cermetek manufactures a companion evaluation board

that is designed to simplify the hardware connections

required to program the iModem as well as providing a

reliable platform to assist with system level debugging.

Contact Cermetek and ask for the CH21XX iModem

Evaluation Board.

High Speed Internet Modem Family

iMODEM NETWORK ISP

A valid ISP account ID and password are required to

access the internet. As a convenience to our

customers, and to facilitate operational use of the

iModem, Cermetek supplies each iModem with a pre-

programmed account on the Cermetek iModem

Network ISP. This account is provided on a 90 day

free trial offer basis. Cermetek established the iModem

Network ISP to provide embedded internet appliance

users with features and services tuned to the unique

demands of the internet appliance environment. In

addition to standard email service, the iModem

Network ISP can provide: email to FAX, email to Voice,

email to dynamic web page update, and email re-

routing. Refer to Cermetek Application Note # 149,

Cermetek Internet Service (ISP) Description of

Features and Services, for more details.

The CH2165 can utilize any non-proprietary commercial

or private ISP for internet access as well as the

Cermetek iModem Network ISP. We recommend the

Cermetek iModem Network ISP because of its

machine friendly features and low cost $2.00 per month

access. Please see www.imodem.net for more details.

iMODEM CONTROL METHODOLOGIES

The iModem receives @T® commands from the host

processor or receives an event status flag on the Send

Email Control Pin (Pin #6 – CH2124/60) and proceeds

to dial up the local POP, log on to the internet,

authenticate and verify the user ID and password, and

either sends or retrieves email depending on the

command/status flag received. For CH2124/60

products, see Table 1 for a summary of available @T®

commands. For CH2165 products, see Table 2.

The iModem Family offers a variety of internet

communication features ranging from simple on

demand event triggered email transmission to full send

and retrieve email capability. User Control of the

internet communication activity of the iModem device

typically falls into one of the following basic control

strategies:

1. Fully Autonomous or event driven pin control

requiring no host processor intervention. A pre-

stored message is sent on a pin transition

(CH2124/60).

2. Semiautonomous control, requiring one command to

be issued from the host processor. A pre-stored

message is sent on command.

3. Complete host intervention and supervision requiring

each command to be issued from the host.

Message is constructed and sent in real time.

2003 Cermetek Microelectronics, Inc.

Page 3

Document No. 607-0017 Revision H2 (11/03)

Share Link: