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Document No. 607-0017 Rev. B (06/00)

Table 6A. Summary of Basic AT Commands.

Re-execute command

Go off-hook and attempt to answer call

Select V.22 connection at 1200bps

Select Bell 212A connection at 1200bps

Return OK message

Dial modifier
P

Pulse Dial

Touch Tone Dial

Wait for Dial Tone

;

Return to Idle State

Wait for Quiet Answer
Command

Flash Hook

Pause

0-9/ABCD

Dial Digits/
Characters & wait for credit
card dial tone

Toggles calling tone

Redial last number

Star digit - tone dialing

S=n

Dial the number and store in
directory. N 0 to 3.

Turn off command echo

Turn on command echo

Initiate a hang-up sequence

If on-hook, go off-hook and enter command
mode

Set low speaker volume

Set medium speaker volume

Set high speaker volume

Turn Speaker off

Turn speaker on during hand shaking and turn
speaker off while receiving carrier

Turn speaker on during hand shaking and while
receiving carrier

Turn speaker off during dialing and receiving
carrier and turn speaker on during answering

Turn off auto-mode detection

Turn on auto-mode detection

Go on-line

Go on-line and initiate a retrain sequence

Allow result codes to DTE

Inhibit result codes to DTE

Select S-Register as default

Sn?

Return the value of S-Register n

Sn=v

Set default S-Register to value v

Report short form (terse) result codes

Report long form (verbose) result codes

Report DTE speed in EC model

Report line speed, EC protocol and DTE speed

Report DCE speed in EC mode

COMMAND

FUNCTION

COMMAND

FUNCTION

Report basic call progress result codes, i.e.
OK, CONNECT< RING, NO CARRIER (also for
busy, if enabled, and dial tone not detected),
NO ANSWER and ERROR

Disable long space disconnect before on-hook

Enable long space disconnect before on-hook

Restore stored profile 0 after warm reset
Restore stored profile 1 after warm reset

Force RLSD active regardless of the carrier
state

&C0

Allow RLSD to follow the carrier state

&C1

Interpret DTR On to OFF transition per & Qn:

&Q0, &Q5, &Q7

&D0

The modem ignores DTR Interpret DTR On to
OFF transition per & Qn: &Q0, &Q5, &Q6

&D1

Interpret DTR On to OFF transition per & Qn:

&Q0, &Q5, &Q6

&D2

Interpret DTR On to OFF transition per & Qn:

&Q0, &Q5, &Q6

&/D3

The modem performs soft reset.

Содержание iModem CH2156

Страница 1: ... Automative 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 iNet 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 Refer...

Страница 2: ...l flow control and to facilitate transmission and reception of large email files Control of the internet capabilities of the iModem can be either event driven semiautonomous or initiated and controlled by a system level host processor Further the iModem can function as a 56K V 90 modem when not connected to the internet Semiautonomous control is a special case of full Host Supervised Control and r...

Страница 3: ...n the iModem is operating in the internet state all iNet AT Command communication between the iModem and the host processor DTE is conducted over the RS232 serial interface at 57 6kbps When the iModem is operating in the modem state communication with the DTE can be at any speed up to and including 230 4kbps The resident Modulator Demodulator supports line equalization and forward error correction...

Страница 4: ...ecommended that a 10 mF or greater tantalum capacitor in parallel with a 0 1mF ceramic capacitor be used The user must also provide shielding from nearby sources of EMI such as relays motors and other power supplies The iModem is trained to a selected speed with an AT CR training sequence Thus the DTE to modem serial interface speed can be set independent of the DCE or line carrier connecting spee...

Страница 5: ...ES The iModem can be in either the Internet State or the Modem State Because the iModem has the unique ability to operate as either a high speed V 90 Modem or as an internet email transceiver the commands sent on TXD or the status of the Send Email Control Pin determine operation iModem Internet State The iModem can be controlled by providing status flags on the Send Email Control Pin pin 6 or by ...

Страница 6: ...nd 5C specifying X4 allows the iModem to utilize the entire range of non extended messages whereas X0 suppresses all but the very basic result codes Most of the result codes allowed under X1 X2 and X3 are considered call progress status codes and in practice are suppressed except for the case of debugging activities It is recommended that the non extended result codes be used in all cases It shoul...

Страница 7: ...ND EMAIL CONTROL pin Semi Autonomous and Complete Host Intervention Control This method of control requires all commands to be issued in serial fashion The first example assumes that the pre pro grammed ISP and email address is to be used A common host control application involves using the iModem pre programmed internet configuration profile except for the local access ISP phone number Example In...

Страница 8: ... 2000 Cermetek Microelectronics Inc Page 8 Document No 607 0017 Rev B 06 00 Table 3 iModem Family Pin Descriptions ...

Страница 9: ...ss to send and receive emails The required information can be modified by including it on the appropriate iNet AT Command line at the time the commands are issued from the host processor Commands can be issued to the iModem using any number of commercially available terminal emulation programs such as PROCOM or HYPER TERMINAL As an added service to our customers each iModem is shipped from the fac...

Страница 10: ...C E N N O C X X X X X 2 7 1 0 0 0 6 4 T C E N N O C X X X X X 3 7 1 0 0 0 8 4 T C E N N O C X X X X X 4 7 1 0 0 0 0 5 T C E N N O C X X X X X 5 7 1 0 0 0 2 5 T C E N N O C X X X X X 6 7 1 0 0 0 4 5 T C E N N O C X X X X X 7 7 1 0 0 0 6 5 T C E N N O C X X X X X 8 7 1 0 0 0 6 5 T C E N N O C X X X X X 9 7 1 0 0 4 0 3 2 T C E N N O C X X X X X e s r e T r o t r o h S r o e s o b r e V g n o L 0 1 2 ...

Страница 11: ...party lines service is subject to state tariffs Changes in Attestation Procedure for Plugs and Jacks Name of applicant attests that the network interface plugs or jacks used on this equipment comply with and will continue to comply with the mechanical requirements specified in Part 68 Sub part F specifically the dimensions tolerances and metallic plating requirements The compliance of these connec...

Страница 12: ...er n Sn v Set default S Register to value v V0 Report short form terse result codes V1 Report long form verbose result codes W0 Report DTE speed in EC model W1 Report line speed EC protocol and DTE speed W2 Report DCE speed in EC mode COMMAND FUNCTION COMMAND FUNCTION X0 Report basic call progress result codes i e OK CONNECT RING NO CARRIER also for busy if enabled and dial tone not detected NO AN...

Страница 13: ...nous mode P0 Set 10 pps pulse dial with 39 61 make break P1 Set 10 pps pulse dial with 33 67 make break P2 Set 20 pps pulse dial with 39 61 make break P3 Set 20 pps pulse dial with 33 67 make break Q0 Select direct asynchronous mode Q5 Modem negotiates an error corrected link Q6 Select asynchronous operation in normal mode T0 Terminate any test in progress T1 Initiate local analog loopback T2 Retu...

Страница 14: ...Status T 0 S17 Reserved S18 Test Timer 0 255 seconds 0 S21 V 24 General Bit Mapped Options Status 52 34h S22 Speaker Results Bit Mapped Options Status 117 75h S23 General Bit Mapped Options Status 62 3Dh S24 Reserved S25 Delay to DTR Off 0 255 seconds or 0 01 second 5 S26 RTS to CTS Delay 0 255 0 01second 1 S27 General Bit Mapped Options Status 73 49h S28 General Bit Mapped Options Status 0 S30 Di...

Страница 15: ... answer disabled Command echo ON All result codes enabled except REL codes Wait for dial tone before dialing 2 seconds Dials with touch tone T Detects busy signal ATX4 Full word result codes non extended Pulse dial make break ratio 39 61 10 pps Test timer set to 0 seconds test modes disabled Inactivity timer set to 0 minutes CTS always active DSR is ignored DCD is ignored RTS to CTS delay 01 secon...

Страница 16: ... 2000 Cermetek Microelectronics Inc Page 16 Document No 607 0017 Rev B 06 00 Figure 7 PSTN Line Interface for all iNet Appliance Products ...

Страница 17: ...e L t u p n I 0 0 1 A u I H O _ _ _ _ T S R t n e r r u C t u p n I 0 0 5 A u CP _ _ _ _ _ _ d a o L e v i t i c a p a C D X T S T R R T D S T R d a o L e v i t i c a p a C 0 1 8 F p F p r e t e m a r a P r e t e m a r a P r e t e m a r a P r e t e m a r a P r e t e m a r a P m u m i n i M m u m i n i M m u m i n i M m u m i n i M m u m i n i M l a c i p y T l a c i p y T l a c i p y T l a c i p y...

Страница 18: ...ure Sense Pin Email Send Control Pin 0 C to 70 C Send port status emails Full Function V 90 FCC Part 68 Approved UL1950 listed modem CH2158 2 Input Sense Pins Serial RAM Email Send Control Pin 0 C to 70 C Send Email only Full Function V 90 FCC Part 68 Approved UL1950 listed modem CH2159 2 Input Sense Pins Email Send Control Pin Send emails with attachment 0 C to 70 C files Full Function V 90 FCC P...

Страница 19: ...4 E mail cermstaf cermetek com website www cermetek com Cermetek reserves the right to make changes in specifications at any time and without notice The information furnished by Cermetek in this publication is believed to be accurate and reliable However no responsibility is assumed by Cermetek for its use or for any infringements of patents or other rights of third parties resulting from its use ...

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