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Data-Linc Group DLM4500 User Manual

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U
G
SER
UIDE
DLM4500
Dial-Up/Leased Line Modem
It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.

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Summary of Contents for Data-Linc Group DLM4500

  • Page 1 UIDE DLM4500 Dial-Up/Leased Line Modem It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.
  • Page 2 DLM4500 User Guide Patents This device covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794; 5,864,560; 5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; D394,250; 5,724,356; 5,673,268; 5,673,257; 5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649; 5,592,586; 5,577,041; 5,574,725; D374,222; 5,559,793; 5,546,448; 5,546,395; 5,535,204; 5,500,859;...

  • Page 3: Table Of Contents

    DLM4500 User Guide Table of Contents Page Introduction Connection Points and LED Descriptions Equipment Connections and Interface Descriptions Quick Start Quick Configuration Technical Specifications Technical Support Return Material Authorization Contact Information Appendix A Enclosure Dimensions Appendix B Complete AT Commands...
  • Page 4 DLM4500 User Guide PN 161-10008-001A DATA-LINC GROUP rev 4/04...

  • Page 5: Introduction

    DC voltage input power range and the operating temperature range of this device is -40° to +70° C. The mechanical and electrical specifications are listed in Appendix B. The DLM4500 has front panel LED indicators for Power (Red), Data In from user equipment (Yellow), Data Out to users equipment (Green), and Carrier Detect (Amber).

  • Page 6: Connection Points And Led Descriptions

    DLM4500 User Guide Connection Points and LED Descriptions Figure 1 Front Panel Connections – (Left to Right) DATA-LINC GROUP (425) 882-2206 POWER LINE DATA DLM4500 RESET RJ-11 — Phone Line DB-9 — Data Port RS232 pin 1 CD Out (Carrier Detect)

  • Page 7: Equipment Connections And Interface Descriptions

    The AE-422 connections consist of a wire pair for data out, and a wire pair for data in. Both pairs have a plus (+) and a minus (-) polarity. To make a AE-422 connection, wire the DLM4500 Data In pair to the Data out from connecting equipment.
  • Page 8 The Data-In LED on the front panel should flash. If it does not, invert the wire pair and try again. Data-Linc Group AE-485 usually connects the ‘+’ to an A contact and connects the ‘–‘ wire to a B contact.

  • Page 9: Quick Start

    DLM4500 User Guide Dial Up Quick Start and Testing The following setup procedure is for a DLM4500 in Dial-Up mode. It assumes that two phone jacks of dial-up lines are available 1. Unpack the modem(s). 2. Verify that you have all of the parts and cables to power and connect the modem to your equipment. You must be using a PC with an RS232 serial communication port.
  • Page 10 End Dial-Up Quick Start and Testing Leased Line Quick Start and Testing The following setup procedure is for a DLM4500 in Leased Line mode. It assumes that two phone jacks of leased line or phone cord wire is available for testing.
  • Page 11 DLM4500 User Guide 8. The DLM4500 will be configured to your application if the information was supplied to Data-Linc Group during the order process. if not the Modem Mode (ie Master or Remote), Baud Rate and other paramater should be checked before connecting the modems (See Quick Configuration for help) 9.

  • Page 12: Quick Configuration

    DLM4500 User Guide Quick Configuration ***For Most Applications the DLM4500 Comes Preconfigured Note: The Enter key produces the ASCII character ‘cr’ carriage return (decimal 13, hex 0d). Note also that there are no ‘O’s (ohs) in any of the following AT command string. All round characters are the number zero (0).
  • Page 13 -Then follow the Quick Configuration Guide. The DLM4500 has many commands and various operating modes. It can be configured to perform under almost all type of system designs. This manual does not try to cover each and every possible combination. If you are trying to use the DLM4500 in a particular mode and you can not decide what commands to use from Appendix A, then please contact Data-Linc Group Technical services for assistance.

  • Page 14: Technical Specifications

    DLM4500 User Guide Technical Specifications t n I l a i t n I t i s i r r t i s i r r t n I . t f , l a , y r . s t...
  • Page 15 DLM4500 User Guide Technical Specifications Cont. , s i , s i e i l e i l " 0 " 9 " 4 a l f l a i PN 161-10008-001A DATA-LINC GROUP rev 4/04...

  • Page 16: Technical Support

    Data-Linc Group warrants equipment of its own manufacture to be free from defects in material and workmanship for one year from date of shipment to original user. Data-Linc Group will replace or repair, at our option, any part found to be defective.

  • Page 17: Appendix A Enclosure Dimensions

    DLM4500 User Guide Appendix A Enclosure Dimensions 7.75 in 19.69 cm 0.06 in 1.54 in .15 cm 3.94 cm 9.00 in 22.86 cm 0.35 in .89 cm 4 Places 1.08 in 2.74 cm 4 Places 1.00 in 2.54 cm 2.45 in 4 Places 6.22 cm...
  • Page 18 DLM4500 User Guide Appendix B AT Commands, S-Registers and Result Codes The AT commands are used to control the operation of your modem. They are called AT commands because the characters AT must precede each command to get the attention of the modem.
  • Page 19 DLM4500 User Guide AT Commands AT Attention Code Values: n/a Description: The attention code precedes all command lines except A/, A:, and escape sequences. ENTER Key Values: n/a Description: Press the ENTER (RETURN) key to execute most commands. A Answer Values: n/a Description: Answer call before final ring.
  • Page 20 DLM4500 User Guide DS=y Dial Stored Telephone Number Values: n = 0–2 Default: none Description: Dial a number previously stored in directory number y by the &Zy=x command. Example: ATDS=2 En Echo Command Mode Characters Values: n = 0 or 1 Default: 1 Description: E0 Do not echo keyboard input to the terminal.
  • Page 21 DLM4500 User Guide O n Return Online to Data Mode Values: 0, 1, 3 Default: None Description: O0 Exit online command mode and return to data mode. O1 Issue a retrain and return to online data mode. O3 Issue a rate renegotiation and return to data mode.
  • Page 22 DLM4500 User Guide X n Result Code Selection Values: n = 0–7 Default: 4 Description: X0 Basic result codes ( e.g., CONNECT ); does not look for dial tone or busy signal. X1 Extended result codes ( e.g., CONNECT 46000 V42bis ); does not look for dial tone or busy signal.
  • Page 23 DLM4500 User Guide X n Result Code Selection Values: n = 0–7 Default: 4 Description: X0 Basic result codes ( e.g., CONNECT ); does not look for dial tone or busy signal. X1 Extended result codes ( e.g., CONNECT 46000 V42bis ); does not look for dial tone or busy signal.
  • Page 24 DLM4500 User Guide &G n V.22bis Guard Tone Control Values: n = 0, 1, or 2 Default: 0 Description: &G0 Disable guard tone. &G1 Set guard tone to 550 Hz. &G2 Set guard tone to 1800 Hz. Note: The &G command is not used in North America.
  • Page 25 DLM4500 User Guide &T n Loopback Test (V.54 Test) Commands Values: n = 0, 1, 3, 6 Default: None Description: The modem can perform selected test and diagnostic functions. A test can be run only when the modem is operating in non-error-correction mode (normal or direct mode). For tests 3 and 6, a connection between the two modems must be established.
  • Page 26 DLM4500 User Guide \K n Break Control Values: n = 0–5 Default: 5 Description: Controls the response of the modem to a break received from the computer, the remote modem, or the \ B command. The response is different for each of three different states.
  • Page 27 DLM4500 User Guide C\T n Inactivity Timer Values: n = 0, 1–255 Default: 0 Description: Sets the time (in minutes) after the last character is sent or received that the modem waits before disconnecting. A value of zero disables the timer. Applies only in buffer mode.
  • Page 28 DLM4500 User Guide $LB= n Lenth of Break Values: n = 0-255 (1 = 10ms) Default: 003 (30 ms) $MB n Online BPS Speed Values: n = speed in bits per second Default: 28,800 Description: $MB75 Selects CCITT V.23 mode...
  • Page 29 DLM4500 User Guide S-Registers Certain modem values, or parameters, are stored in memory locations called S-registers. Use the S command to read or to alter the contents of S-registers (see previous section). Register Unit Range Default Description S0 1 ring 0, 1–255 1 Sets the number of rings until the modem answers. ATS0=0 disables auto-answer completely.
  • Page 30 DLM4500 User Guide S37 decimal 0–19 0 Sets the maximum V.34 “upstream” speed at which the modem attempts to connect. 0 = maximum speed 1 = reserved 2 = 1200/75 bps 3 = 300 bps 4 = reserved 5 = 1200 bps...
  • Page 31 DLM4500 User Guide S48 decimal 7 or 128 7 Enables (7) or disables (128) LAPM negotiation. The following table lists the S36 and S48 configuration settings for certain types of connections. S48=7 S48=128 S36=0, 2 LAPM or hang up Do not use...
  • Page 32 DLM4500 User Guide Terse and Verbose Result Codes 0 OK Command executed 1 CONNECT Modem connected to line 2 RING Ring signal detected 3 NO CARRIER Carrier signal lost or not detected 4 ERROR Invalid command 5 * CONNECT 1200 Connected at 1200 bps...

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