Cermetek CH2124 Скачать руководство пользователя страница 15

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Cermetek Microelectronics, Inc.

High Speed Internet Modem Family



2005 Cermetek Microelectronics, Inc.

Page 15

Document No. 607-0017 Revision I1 (05/05)

Table 4. Analog Characteristics.

NAME TYPE

CHARACTERISTICS

VALUE

SPK O(DF)

Minimum

Load

300ohm

Maximum Capacitive Load

0.01µf

Output

Impedance

10ohm

Output Voltage

2.5 ± 1.6V

D.C.

Offset

<20mV

Table 5. Summary of CH2124/60 iModem Family of Products.

Model

Summary of Features

Operating Temperature

CH2124 2 Input Sense Pins, Send and Retrieve Emails. Email Send Control Pin,

Full Function, V.22bis, 2400bps, FCC Part 68 Approved, UL1950 listed.

0°C to 70°C

CH2160 2 Input Sense Pins, Send and Retrieve Email. Email Send Control Pin

Full Function, V.90, 56Kbps, FCC Part 68 Approved, UL 1950 listed.

0°C to 70°C

Figure 4. Example Circuit for illumination of Email Accepted LED for CH2124/60. This circuit is not needed
for the CH2165 product.

CLEAR LED

74LS74

SET

CLR

SET

CLR

300

Ω

Vcc

4.7K

Ω

Vcc

4.7K

Ω

CH21XX

SENT

74HCT74

Vcc

10µf

Содержание CH2124

Страница 1: ...d available free of change 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 prov...

Страница 2: ...H2124 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 reprogr...

Страница 3: ... the idle state if a low going TTL pulse is presented to the SEND Email Control Pin Pin 6 at any time during or after initiation of email send Semi Autonomous Control This method requires a minimal amount of host processor intervention and requires that the DTE serial port be operational Semi autonomous control is a special case of full Host Supervised Control and relies on the preprogrammed defau...

Страница 4: ...nds an ASCII MESSAGE ACCEPTED activity response message and sends a TTL LOW Pulse to Pin 8 indicating that the ISP Mail Server has accepted the email message Control of the internet capabilities of the iModem can be either event driven or initiated and controlled by a system level host processor Refer to Table 3 for a complete set of pin descriptions When not utilized in the internet connectivity ...

Страница 5: ...on with the internal µP controller Refer to Application Note 158 Cermetek iModem Caveats and Definitions for a more detailed discussion of this issue IMPORTANT NOTE Cermetek recommends a minimum of 50ms inter character delay when sending commands to the CH2124 60 iModem Failure to do so could result in unpredictable performance Refer to Cermetek s High Speed Modem and FAX Family product data sheet...

Страница 6: ...ware versions 1 262 or greater T J 1 1 2 7 12 Establish email message type to be sent when iModem SEND pin is activated or the TD command issued J1 will select the User Defined message or by K8 parameter for firmware versions 1 262 or greater T K0 n 1 2 6 Select PAP Authentication Protocol n 01 allows PAP only DEFAULT n 7D allows CHAP or PAP CHAP NOT SUPPORTED T K1 n 1 2 6 Set the number of dial u...

Страница 7: ...is currently limited to 125 ASCII characters Blanks or spaces are allowed and count as 1 character per each occurrence The entered message is stored in message memory location M1 T N1 n 1 2 Enter local access phone number for ISP n T OP1 n 1 2 Enter POP3 server IP HEXIDECIMAL address n T OS1 n 1 2 Enter SMTP server IP HEXIDECIMAL address n T PW n 1 2 Enter Dialup Password Maximum length is 15 alph...

Страница 8: ...5 Parameter must be specified as one ASCII alphanumeric character 6 Parameter must be specified as two alphanumeric characters Use a leading 0 if necessary 7 Effective with iModem Firmware Revisions 1 262 or greater the TJ0 and TJ1 commands have been replaced with K8 parameter modifiable with the TK8 command 8 Dial up Unix Shell account access is NOT currently supported on the iModem Network ISP 9...

Страница 9: ...curs after successful email transmission and after receipt of MESSAGE ACCEPT status from ISP SMTP mail server MESSAGE DELETED 1 Occurs after successful deletion of specified message number s NO CONNECT 1 Occurs when PSTN line is released after unsuccessful dialup and or unsuccessful ISP negotiation and or unsuccessful SMTP server negotiation NO DIALTONE 1 Occurs after unsuccessful dialup and iMode...

Страница 10: ...y User Defined email message TN1 Display local access POP phone number TOP1 Display POP3 server IP address TOS1 Display SMTP server IP address TPW Display Dial up password TPM Display POP3 password TP1 Display ISP password TS1 Display email subject TU1 Display email recipient TO name Commands To Interrogate iModem Command Function TI Display iModem product type and firmware revision TV Displays IS...

Страница 11: ...rovable for use by DOT to Industry Canada CS 03 Part I However per Canadian procedures approval can only be granted after the iModem has been installed into the end product Typically Canadian approval is obtained by submitting the final end product to an independent test house or consultant for evaluation The test house consultant then forwards the test results and applicable documents to the regu...

Страница 12: ...o the users or the operation of the user s equipment the telephone company will give the user notice in writing to allow the users to make any changes necessary to maintain uninterrupted service In certain circumstances it may be necessary for the telephone company to request information from the users concerning the equipment which the user has connected to the telephone line Upon request of the ...

Страница 13: ...nary 1 condition is indicated by a HIGH 11 RXD O RECEIVE DATA Serial Receive data output Received marking or a binary 1 condition is indicated by a HIGH 12 NC NO CONECTION 13 DTR I DATA TERMINAL READY 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...

Страница 14: ...o verify compliance For Canada use either 10Ω 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 provided by internal circuitry see Figure 3 No additional external components are required to maintain conveyed FCC Part 68 approval B In most environments 2 terminal surge suppressors are adequate For seve...

Страница 15: ...roducts Model Summary of Features Operating Temperature CH2124 2 Input Sense Pins Send and Retrieve Emails Email Send Control Pin Full Function V 22bis 2400bps FCC Part 68 Approved UL1950 listed 0 C to 70 C CH2160 2 Input Sense Pins Send and Retrieve Email Email Send Control Pin Full Function V 90 56Kbps FCC Part 68 Approved UL 1950 listed 0 C to 70 C Figure 4 Example Circuit for illumination of E...

Страница 16: ...nput Current RST 580 uA CP Capacitive Load TXD DTR RTS Capacitive Load RTS 10 8 pF pF Table 6B CH2160 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 120 0 mA VIH High Level Input Voltage 5 0V 2 0 3 5 V VIL Low Level Input Voltage 5 0V 1 0 2 2 V VT Positive Hyst...

Страница 17: ...lse 10 msec If user supplied Note 1 All CH2124 iModem devices perform an internal self check upon reset and will not respond to commands issued during this self check sequence Table 7B CH2160 iModem Electrical Specifications Parameter Minimum Typical Maximum Units Comments Off Hook Impedance 20 Mohm Trans Hybrid Loss 25 dB 600 Ohm RXA TXA Ring Voltage Loop 35 VPP On 48VDC line voltage for sustaine...

Страница 18: ...e or for any infringements of patents 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 Approvable device However Cermetek does not have influence over nor knowledge of the specific user application environment Therefore for FCC and IC Approved or Approvabl...

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