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HIGH SPEED INTERNET MODEM FAMILY 

 

 

CH2165 

Send/Retrieve Email. Unlimited Email, V.90 

 

 

2005 Cermetek Microelectronics, Inc. 

Page 1 

Document No. 607-0017-01 Revision A (05/05) 

FEATURES 

  Replaces conventional modems using the world 

wide web for communication. 

  Transparent internet operations of Point-to-Point 

Protocol (PPP), Password Authentication Protocol 
(PAP) and Challenge Authentication Protocol 
(CHAP) to connect to the Internet. 

  Built-in TCP/IP and SMTP to send emails, TCP/IP 

and POP3 to retrieve and/or delete emails. 

  Send/Retrieve streaming email of unlimited length; 

or pre-stored email up to 100K bytes in RAM. 

  Retrieve multiple messages or select individual 

messages. 

  Once online CH2165 can stay online and send, 

retrieve and/or delete email. 

  Programmable using serial interface. 

  Remote programming using browser to access 

remote device. 

  Resident modem supports: V.90, V.34bis, V.34, 

V.22bis, V.22A/B V.23, V.21, Bell 212A and 103, 
(depending on model) and can be used in 
conventional modem mode. 

  Error correcting: V.42 LAPM, MNP 2-4 and MNP10. 

  Automatic baud rate adaptability utilizing speed 

sensing, flow control and data buffers. 

  Serial interface, V.24 (EIA 232-E), 5 volts. 

  NVRAM for stored modem (S-Registers) profiles. 

 Cermetek 

@T

®

 AT-like Commands. 

  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/Industry Canada CSA CS-

03 Part I approvable. 

  Pin-for-Pin compatible with CH2124/60 iModem 

family and modem CH179X/2056 family. 

  +5 Volt operation. 

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

  Use with any Non-proprietary commercial or private 

ISP. 

 Cermetek’s 

iModem Network

 ISP has 1000s of 

local access numbers world wide. 

  1 year 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. 

 

Replacing conventional modems and long distance 
telephone lines with local access internet connections 
reduces fixed asset and maintenance costs, limits 
communication expenses and saves money. 
 
 

USER FRIENDLY INTERFACE LAYER 

All Cermetek iModem products contain a user friendly 
interface layer that provides the user transparent 
access to the internet.  This interface layer, consisting 
of various 

@T

®

 macro commands, has the look and feel 

of conventional modem AT commands.  With the 

@T

®

 

macro commands the user can direct the iModem to 
compose, edit/modify, send, retrieve and delete email 
messages.  Internet and email activity status is reported 
via the iModem’s V.24 (EIA 232-E) serial interface. 
 
 

COMPARISON OF CH21XX iMODEM DEVICES

 

The CH2165 represents the next generation in internet 
enabled devices.  This product provides the user with 
unsurpassed command and control capabilities.  The 
CH2165 communicates asynchronously with the host 
controller (via the serial port) and the internet (via the 
PSTN connection) 

simultaneously

.  Consequently, the 

user can intersperse CH2165 specific management 
commands with internet commands.  Further, 
commands can be queued.  The CH2165 will also send 
or retrieve email messages of virtually unlimited length 
by using streaming email techniques.  The CH2165 is 
ideal for applications where larger data transfers are 
required and/or where large amounts of data must be 
stored locally on the iModem device. 
 
The CH2124/60 products are the first generation 
internet enabled devices.  These products excel at 
sending and retrieving modest amounts of data.  Email 
messages of approximately 125 ASCII characters in 
length can be stored in internal Flash ROM for later 
transmission. 
 
The CH2124/60 products are ideal for very low cost 
controller applications and in applications where limited 
data transfer is required.

 

 

Summary of Contents for CH2165

Page 1: ...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...

Page 2: ...e data stream with a CR CR Alternatively messages of finite length can pre stored locally on the CH2165 in RAM memory and then sent when needed The data stream termination sequence for pre stored mess...

Page 3: ...the issuance by the host processor to the iModem the appropriate T command to send retrieve delete email PSTN dial up logon authentication and email transmission retrieval and or deletion are perform...

Page 4: ...evels of internet and email status information Using the TCS PPP command the user can monitor all the internet PPP communication Additionally the user can determine internet connectivity status by iss...

Page 5: ...THE FACTORY all T command communication between the CH2165 iModem and the host processor is conducted over the serial interface at 19 2kbps CH21XX DTE Speed AS DELIVERED FROM THE FACTORY the CH2165 i...

Page 6: ...ed Password T PI n T PI Set ISP Login password n T PM n T PM Set POP3 email retrieve password n Username T UI n T UI Set ISP Login username n T UM n T UM Set POP3 email retrieve username n POP3 Retrie...

Page 7: ...ver This address becomes the DESTINATION address of the Error Email and appears in the TCP IP header T AF n T A Set email FROM address n This is the address that follows the FROM located in the body o...

Page 8: ...ED V Display verbose command syntax Z Display factory default parameter restore command syntax Server Addresses T SS n T S Set SMTP server symbolic name n This symbolic name is used by the CH2165 to d...

Page 9: ...ircuit PCB 5 No additional circuitry other than that shown in Figure 3 may be connected between the iModem module and the RJ 11C jack Doing so will invalidate the conveyed FCC approval 6 The iModem th...

Page 10: ...tions will be provided by the FCC within 30 days of their request for the same Telephone Company Procedure The goal of the telephone company is to provide the best service it can In order to do this i...

Page 11: ...INPUT Active LOW Switching off DTR can either return modem to command state disconnect phone call or reset modem DTR should be set LOW when not in use 14 DSR O DATA SET READY LOW indicates handshakin...

Page 12: ...lab to verify compliance For Canada use either 10 resistors carbon film or SMD parts 1 8 watt minimum as described in paragraph B above 2 Over Voltage and Lightning Protection A Surge Protection is p...

Page 13: ...iModem Electrical Specifications Symbol Characteristic Min Typ Max Units VCC Positive Supply Voltage 4 5 5 0 5 5 V ICC Off Hook Nominal Operating Current VCC 5 5V when modem is Off Hook 300 0 mA VIH...

Page 14: ...0 mA Return Loss 1000 Hz 15 dB 600 Ohm Ring Frequencies 18 20 30 Hz Receiver Insertion Gain 0 5 0 0 0 5 dB Transmit Power 9 5 dBm 600 Ohm Data Mode First Character After Reset See Note 1 25 0 sec Dela...

Page 15: ...ts or other rights of third parties resulting from its use No license is granted under any patents or patent rights of Cermetek Cermetek provides the user with a FCC USA and IC Canada Approved or Appr...

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