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 21

Important Safety Instructions

1. Read and follow all warning notices and instructions marked on the product or

included in the manual.

2. Slots and openings in the cabinet are provided for ventilation. To ensure reliable

operation of the product and to protect it from overheating, these slots and
openings must not be blocked or covered.

3. Do not allow anything to rest on the power cord and do not locate the product

where persons will walk on the power cord.

4. Do not attempt to service this product yourself, as opening or removing covers may

expose you to dangerous high voltage points or other risks. Refer all servicing to
qualified service personnel.

5. General purpose cables are used with this product for connection to the network.

Special cables, which may be required by the regulatory inspection authority for the
installation site, are the responsibility of the customer.

6. When installed in the final configuration, the product must comply with the

applicable Safety Standards and regulatory requirements of the country in which it
is installed. If necessary, consult with the appropriate regulatory agencies and
inspection authorities to ensure compliance.

7. A rare phenomenon can create a voltage potential between the earth grounds of

two or more buildings. If products installed in separate buildings are
interconnected, the voltage potential may cause a hazardous condition. Consult a
qualified electrical consultant to determine whether or not this phenomenon exists
and, if necessary, implement corrective action prior to interconnecting the products.

8. In addition, since the equipment is to be used with telecommunications circuits,

take the following precautions:

— Never install telephone wiring during a lightning storm.

— Never install telephone jacks in wet locations unless the jack is specifically

designed for wet locations.

— Never touch uninsulated telephone wires or terminals unless the telephone

line has been disconnected at the network interface.

— Use caution when installing or modifying telephone lines.

— Avoid using a telephone (other than a cordless type) during an electrical storm.

There may be a remote risk of electric shock from lightning.

— Do not use the telephone to report a gas leak in the vicinity of the leak.

Summary of Contents for COMSPHERE 3821PLUS

Page 1: ...COMSPHERE 3821Plus MODEM QUICK REFERENCE Document No 3821 A2 GL10 00...

Page 2: ...and issued as a new release to this manual Warranty Sales and Service Information Contact your local sales representative service representative or distributor directly for any help needed For additio...

Page 3: ...PHERE 3821Plus Modem User s Guide To request a paper copy of a Paradyne document Within the U S A call 1 800 PARADYNE 1 800 727 2396 Outside the U S A call 1 727 530 8623 3821Plus Installation A typic...

Page 4: ...nd its power supply can be found in the COMSPHERE 3000 Series Carrier Installation Manual Document Number 3000 A2 GA31 Install the NIM A NIM can be installed on the left or right side of the back of t...

Page 5: ...the 50 pin connector in the middle of the NIM Connect the other end to the dial or leased line interface This may be an RJ11 gang box or a 66A punchdown block 495 14798 NETWORK INTERFACE CABLE P21 or...

Page 6: ...ce assembly it must be mounted on the same side you installed the NIM Procedure 1 Feed the eight tabs at the bottom of the DTE interface assembly into the slots on the left or right side of the carrie...

Page 7: ...til the back edge of the card seats in the socket of the DTE interface assembly 495 14797 Procedure 1 Turn the circuit pack lock until it is vertical locking the 3821Plus card in place 2 When all card...

Page 8: ...instructions to the modem A dumb asynchronous terminal however does not require this software since it can directly send AT commands The 3821Plus can be used with any major communications software Re...

Page 9: ...inate mode 5 Press the key until the appropriate factory preset appears on the LCD and press the corresponding function key to select your choice 6 Choose Function appears and displays the Edit and Sa...

Page 10: ...may have lost AT command control To regain AT command control select via the SDCP the Async Dial factory preset configuration To change a factory template using AT commands perform the following step...

Page 11: ...st connected to a 3821Plus card using the Select key on the SDCP F1 Idle 33 6 MDMA mdmb mdmc F2 F3 Press F1 F2 or F3 to connect the SDCP to modem A B or C respectively The connected modem appears on t...

Page 12: ...Modem Status MDMA mdmb mdmc Call_Setup Status Branch The Status branch of the Top Level menu allows you to view the current status of the dial or leased line connection the DTE interface and the ident...

Page 13: ...ommunication problems such as periodic character loss random errors or constant format errors By the process of elimination you can usually isolate the fault in your system Abort Self Loc_Analog_Loop...

Page 14: ...Operating Active Saved Customer1 Customer2 Factory Async_Dial Sync_Dial Sync_Leased UNIX_Dial Choose Mode Answer Originate Ld EditArea frm Edit Save Choose Function Active Saved Customer1 Customer2 DT...

Page 15: ...ervLine Download Code 495 14846 Call_Setup Test Security Configure Remote Status Modem Status MDMA mdmb mdmc Control Remote Branch The Remote Access feature of 3821Plus modems allows you to change con...

Page 16: ...Control and Reset Security 495 14847 Set_Access_Ctrl Admin Password Reset_Security EditPassWdTable Set_Answer_Sec Set_Admin_PsWd Set_Orig_Secur Set_CallBack_Sec Security Call_Setup Control Test Config...

Page 17: ...o Result Codes section Q1 Disables result codes Q2 Enables originate modem to send result codes to the DTE Required for most UNIX applications Sn Displays value of S Register where n is the register n...

Page 18: ...ar PSTN if ETC installed Gn V 22bis Guard Tone G0 Disables guard tone G1 Sets guard tone to 550 Hz G2 Sets guard tone to 1800 Hz AT COMMANDS continued In Dial Transmit Level I10 10 dBm I11 11 dBm I32...

Page 19: ...er An Maximum Frame Size A0 64 A1 128 A2 192 A3 256 A4 32 A5 16 AT COMMANDS continued Cn Error Control Negotiate Buffer C0 Data is not buffered during handshaking sequence C1 Data is buffered up to 4...

Page 20: ...sthrough X1 Enables XON XOFF Passthrough An Sets error control fallback character n to an ASCII value from 0 to 127 Bn Sets modulation to V 34 and VF rate to n 300 1200 or 2400 to 33600 in increments...

Page 21: ...32bis 4 7200 V 32bis 5 4800 V 32bis 6 2400 V 22bis 7 1200 V 22 8 1200 212A 10 0 300 V 21 11 0 300 103J 20 19200 V 32terbo 21 16800 V 32terbo 27 33600 V 34 28 31200 V 34 29 28800 V 34 30 26400 V 34 31...

Page 22: ...anagement Address 255 0 255 001 256 S76 Dial Autorate 0 0 Enable 1 Disable 2 Start at 4800 3 Start at 9600 S77 DTR Alarm Reporting 0 0 Disable 1 Enable S78 Dial Automode 0 0 Enable 1 Disable 2 System8...

Page 23: ...the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance 7 A rare phenomenon can create a voltage potential be...

Page 24: ...uipment designed for use within certain voltage limits as amended by Directive 93 68 EEC Directive 89 336 EEC Council Directive of 3 May 1989 on the approximation of the laws of the Member States rela...

Page 25: ...ustomer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary 5 The telephone company may make changes in its facilities equipment...

Page 26: ...an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly telephone exte...

Page 27: ...tus shall comprise only i apparatus approved for the purpose of connection between the apparatus and a speechband circuit and ii cable or wiring complying with a code of practice for the installation...

Page 28: ...g to the instruction manual Restrictions Due to JATE Japan Approvals Institute for Telecommunications Equipment regulations only 3 attempts to dial a number are permitted in a 3 minute period If a fou...

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