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To conserve energy, the V.22/212A Modem provides a standby mode, configured by Jumper J2
(located near the telephone transformer T1). During standby mode, the modem draws 50 uA
typically. When the modem receives a call or the MPC* control line (J5-3) is set low, the modem
goes into an active mode and draws 60 mA typically. When jumper J2 is installed, the modem is
constantly powered in the active mode. J2 must be removed for standby operation.

If the customer requires dial-out capabilities of the modem, the modem must be constant powered
(J2 installed), or use the MPC* input to place the modem in the active mode (J2 removed). Wire the
MPC* control line to the power connector J5-3. The line must be referenced to the ground of the
modem (J5-2 or J4-7).

2.2.2 RS-232 Connections

The V.22/212A Modem uses RS-232 communications to serially transfer data between the modem
and the customer's equipment. The RS-232 connector (J4) provides the following RS-232 pin
assignments for connection to customer's equipment:

J4-Pin

Signal

Signal Description

1

FG

Protective Ground

2

TX

Transmit Data

3

RX

Receive Data

4

RTS

Request To Send

5

CTS

Clear To Send

6

DSR

Data Set Ready

7

SG

Signal Ground

8

DCD

Data Carrier Detect

9

PTV

Power Input

20

DTR

Data Terminal Ready

22

RI

Ring Indicator

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Содержание V.22/212A

Страница 1: ...Part of Thermo Fisher Scientific V 22 212A Modem Modem Card for Remote Telemetry Systems User Guide P N 1 0447 004 Revision D ...

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Страница 3: ...V 22 212A Modem Modem Card for Remote Telemetry Systems User Guide P N 1 0447 004 Revision D ...

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Страница 5: ...r reserves the right to make changes to the manual or improvements to the product at any time without notice The material in this manual is proprietary and cannot be reproduced in any form without expressed written consent from Thermo Fisher Thermo Fisher Scientific 1410 Gillingham Lane Sugar Land TX 77478 USA Phone 713 272 0404 Fax 713 272 2272 Web www thermofisher com Thermo Fisher Scientific 14...

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Страница 7: ...ODEM 6 2 2 ELECTRICAL CONNECTION OF THE MODEM 8 2 2 1 Power and Control Connections 9 2 2 2 RS 232 Connections 10 2 3 MODEM CONFIGURATION JUMPERS 11 3 0 OPERATION 13 3 1 CONFIGURATION PROFILES AND S REGISTERS 13 3 1 1 Configuration Profiles 13 3 1 2 S Registers 14 3 2 OPERATING MODES 16 3 3 COMMAND MODE AT COMMANDS 16 4 0 REFERENCE MATERIAL 23 TABLE 1 AT Commands 23 TABLE 1 AT Commands 24 TABLE 2 ...

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Страница 9: ... 15 of the FCC rules and is certified to comply with Part 68 telecommunications rules of the FCC It is also certified to meet the CS 03 Issue 7 of Industry Canada When wired according to the installation section of this manual using Class I Division 2 wiring methods outlined in the National Electrical Code NEC NFPA 70 or in Section 18 of the Canadian Electrical Code Part 1 the modem may safely be ...

Страница 10: ...er coupled Line protection IEEE C62 41 1991 IEEE587 Lightning and Transient Protection User configuration Non Volatile EEPROM to store user configuration Handshake Automatic as defined by the V 22bis V 22 and Bell 212A 103 Equalization Adaptive equalization with auto retrain Dialer type DTMF or Pulse Power mode Switched power or constant power jumper selectable Input voltage range 5 to 15 Vdc Acti...

Страница 11: ...ct Thermo Fisher Scientific at 713 272 0404 for repair or warranty information If the modem causes harm to the telephone network the telephone company may request the modem be disconnected from the network until the problem is resolved If the modem causes harm to the telephone network the telephone company will notify you in advance that temporary discontinuance of service may be required If advan...

Страница 12: ...quipment must also be installed using an acceptable method of connection The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment mal...

Страница 13: ...ed The V 22 212A Modem Card is required to be installed in an enclosure suitable for the application and is not acceptable as a stand alone unit When installed in a hazardous location wire all circuits connected to the V 22 212A Modem Card using Class I Division 2 wiring methods as specified in Article 501 4 b of the National Electrical Code NFPA 70 or in Section 18 of the Canadian Electrical Code...

Страница 14: ... washers are recommended Refer to Exhibit 2 1 for mounting dimensions 6 Exhibit 2 1 V 22 212A Modem PCB Dimensions In the V 22 212A Modem Installation Kit 3 0447 005 the modem is factory installed to mounting rails using 6 32 screws and internal tooth washers The factory mounting rails secure the modem inside an enclosure using double sided high performance VHB tape Do not remove the protective pa...

Страница 15: ...tive paper from the VHB tape Ensure nothing contacts the tape until put in place 3 In one motion set the modem with mounting rails in place and press down hard on the four mounting screws of the board securing the unit to the enclosure Once the VHB tape has made contact to the mounting area do not remove it not even temporarily Removing the unit from the mounting area degrades the adhesive strengt...

Страница 16: ...r J4 The telephone connector requires a standard miniature six position RJ11C telephone plug Only the TIP and RING lines are used J6 2 and J6 3 respectively All wiring connections to the power connector J5 terminate in cage clamp screw terminals that accept stranded wire sizes to 14 AWG Strip the wire ends approximately 3 16 of an inch Inspect the stripped wire for nicked and frayed ends Insert th...

Страница 17: ...tion Jumper J7 located between the power connector and the RS 232 connector is not necessary and can be removed 9 When routing power through the RS 232 connector J4 wire the positive lead to J4 9 PTV and the negative lead to J4 7 SG Configuration Jumper J7 must be installed for this mode of operation Exhibit 2 2 Power Connection Options WARNING CONNECT THE MODEM GROUND TERMINAL E1 TO THE CLOSEST C...

Страница 18: ...red J2 installed or use the MPC input to place the modem in the active mode J2 removed Wire the MPC control line to the power connector J5 3 The line must be referenced to the ground of the modem J5 2 or J4 7 2 2 2 RS 232 Connections The V 22 212A Modem uses RS 232 communications to serially transfer data between the modem and the customer s equipment The RS 232 connector J4 provides the following...

Страница 19: ...tion is made through the RS 232 connector J4 this jumper must be installed Remove this jumper when the primary power connection is made through the power connector J5 J8 Memory Write Enable Jumper This configuration jumper provides a hardware safety feature preventing the non volatile memory from being overwritten when an AT Wx or an AT Zn s command is accidently issued to the modem To change the ...

Страница 20: ...connected J10 Unqualified RX Enable Jumper In the qualified mode setting jumper removed the DCD signal from a received call enables transfer of data from the device connected to the modem s RS 232 port Dialout capabilities of the connected device is disabled the device can only respond to a request of data from a received call In the unqualified mode setting jumper installed the device connected t...

Страница 21: ...ommunication needs and store it in NVMEM as Stored Profile 0 or 1 The Active Profile can be reset to any of the stored sets Because the Active Profile is in volatile memory it is lost if modem power is removed or if the modem goes into standby mode 3 1 CONFIGURATION PROFILES AND S REGISTERS 3 1 1 Configuration Profiles The configuration parameters in the Current and Stored Profiles 0 and 1 can be ...

Страница 22: ...n represents the new numeric value to be placed in the register For example to change the value of S Register 1 to 3 enter the command as ATS1 3 S Register descriptions are as follows S0 Ring to Answer On Sets the number of rings that the modem is to automatically answer on A value of 0 rings disables the automatic answer function of the modem The maximum ring setting is 255 S1 Ring Count The mode...

Страница 23: ... and issues a carrier detect default is 6 600 milliseconds This prevents a ring or a busy signal from being mistaken as a carrier Values of 1 255 may be entered in this register 100 ms to 25 5 seconds respectively S10 Delay Between Lost Carrier and Hang Up Contains the time delay in 100 millisecond intervals between the loss of the carrier and the when the modem hangs up on the line default is 14 ...

Страница 24: ... last command line entered the AT prefix and the CR is not required The command can be entered in all capital ATS0 or all lower case letters ats0 but not mixed Ats0 The AT commands are executed when the Carriage Return Key CR is pressed Refer to the Reference Material Section for a table of AT commands Many of the AT commands require a specified parameter to be entered with the command For example...

Страница 25: ...dard operation Stored default is 1 ATDs The Dial Command takes the modem off hook and initiates the dial string s The dial string consists of the digits to dial and dial string modifiers The string modifiers are designated as follows P Dial in Pulse Mode T Dial in Tone Mode Pause during dialing refer to S Register 8 Perform a flash hook W Wait for dial tone refer to S Register 11 Wait for silence ...

Страница 26: ...mand mode to the on line mode after an escape sequence The values of n are defined as follows 0 Return to on line 1 Return to on line and initiate a retrain sequence causing the connected modems to test the telephone line characteristics and optimize their operation for the best data transmission 2 Enables an automatic retrain sequence 3 Disables the automatic retrain sequence ATQx The Quiet Resul...

Страница 27: ...lue of x is set to 0 An x value of 1 enables the disconnect and if a break greater than 1 6 seconds is received the modem will disconnect ATZx The Restore Profile Command resets the modem using the configuration profile stored in non volatile memory The value x represents the configuration profile 0 or 1 If x is not designated profile 0 is the default AT Cx The Carrier Detect Override Command keep...

Страница 28: ...ntries The 0 value of x sets the command for the United States standard and 1 for the United Kingdom AT Qn Identical to AT Mn command AT Rx CTS Control Command controls the CTS signal If the value of x is 0 the CTS signal tracks the RTS signal If 1 CTS is always set high AT Sx The DSR Mode Command sets the DSR signal high at all times if the value of x is 0 If 1 the DSR is low when in the modem is...

Страница 29: ...lf test testing the transmit and receive circuits of the local modem The local modem sends an internally generated data pattern through the transmit circuitry directly loops the transmission through the receive circuitry then compares the data and increments a counter each time an error is detected At the end of the test the modem displays a three digit number indicating the total number of errors...

Страница 30: ...red in non volatile memory as the default configuration profile during power up The value of x is 0 or 1 for user profile 0 and user profile 1 respectively AT Zn s The Store Dialing String Command stores the dialing string s into one of the four memory location in non volatile memory location n 0 3 Refer to ATDs for dialing string variables NOTE Before the Store Dialing Command is issued install t...

Страница 31: ...aker Control 0 1 2 3 see Table 3 1 On Online 0 1 2 3 see table 4 N A Qx Quiet Result 0 1 1 quiet 0 R Reverse Originate N A Sr n Set S Register see Table 9 N A Sn Read Value in S Register see Table 9 N A Vx Verbose Result 0 1 off on 1 Xn Result Code 0 1 2 3 4 see Table 2 4 Yx Enable Long Space Disconnect 1 enable 0 Zx Restore Profile from NVMEM x 0 1 N A Cx Carrier Detect Override 0 1 on normal 0 D...

Страница 32: ... NVMEM x 0 1 0 Xn Sync Tx Clk Mode 0 1 2 int ext slave 0 Yx Designate Default User Profile 0 1 N A Zn s Store a Telephone Number n 0 3 N A TABLE 2 Result Codes Xn VERBOSE NUMERIC RESULT CODE X0 OK 0 CONNECT 1 RING 2 NO CARRIER 3 ERROR 4 X1 X0 Functions CONNECT 1200 5 CONNECT 2400 10 X2 X1 Functions NO DIAL TONE 6 X3 X1 Functions BUSY 7 X4 X3 Functions NO DIAL TONES 6 TABLE 3 Speaker Modes Mn SPEAK...

Страница 33: ... Modes Mn SYNCHRONOUS MODE M0 Asynchronous Mode M1 Synchronous Mode during on line operation M2 Synchronous Mode after OFF to ON Transition of DTR and Stored Dial String dialed M3 Synchronous Mode when DTR is high TABLE 7 Test Modes Tn TEST MODE T0 Terminate Test in Progress T1 Initiate Local Analog Loopback Test T3 Initiate Local Digital Loopback Test T4 Permit Remote Digital Loopback Test T5 Den...

Страница 34: ...R 013 S04 Line Feed ASCII CHR 010 S05 Back Space ASCII CHR 008 S06 Wait for Dial Tone Seconds 002 S07 Wait for Carrier Seconds 030 S08 Pause Time Seconds 002 S09 Carrier Valid 100 milliseconds 006 S10 Carrier Drop Out 100 milliseconds 014 S11 DTMF Tone Duration 1 millisecond 070 S12 Escape Guard Time 20 milliseconds 050 S13 Unused S14 Bit Mapped Register Decimal 0 255 N A S15 Unused S16 Test Regis...

Страница 35: ...ecimal 0 255 N A S23 Bit Mapped Register Decimal 0 255 N A S24 Unused S25 DTR Delay 10 milliseconds 005 S26 CTS Delay 10 milliseconds 001 S27 Bit Mapped Register Decimal 0 255 N A Stored in NVMEM using AT W Command 000 001 Factory Configuration Stored Configuration ...

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Страница 37: ...Thermo Fisher Scientific 81 Wyman Street P O Box 9046 Waltham Massachusetts 02454 9046 United States www thermofisher com ...

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