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Model MT202TD

1200 BPS Leased Line Modem

User Guide

Содержание MT202TD

Страница 1: ...Model MT202TD 1200 BPS Leased Line Modem User Guide...

Страница 2: ...Revision Date Description B 3 30 01 DIP Switch settings updated Moved connections into separate section PATENTS This device is covered by one or more of the following patents 6 031 867 6 012 113 6 00...

Страница 3: ...nings 8 Unpacking the Modem 9 Modem LED Indicators 10 Controls on PC Board 11 Computer or Terminal Connections 12 MT202TD RS 232 Signal Descriptions 13 Modem and Phone Line Connection 14 DIP Switch Se...

Страница 4: ...upport 20 Limited Warranty 20 Online Warranty Registration 20 Service 21 Technical Support 22 Internet Sites 22 Recording Modem Information 22 Appendix Regulatory Compliance 23 FCC Part 15 Class A Sta...

Страница 5: ...n The MT202TD is a low speed asynchronous modem which employs Frequency Shift Keyed FSK modulation and works in full duplex over four wire or in half duplex over two wire leased line networks The MT20...

Страница 6: ...uplex Line Requirements 2 or 4 wire leased line unconditioned Modulation Frequency Shift Keyed FSK Carrier Frequencies Mark 1200Hz Space 2200Hz Soft Carrier 900Hz Transmit Level 0 dBm Adjustable to 9...

Страница 7: ...to Send Request to Send Data Set Ready and Test Mode Controls Switches for analog loopback and digital loopback tests DIP switch for 2 or 4 wire leased line selection Local Copy 0 or 9dBm transmit le...

Страница 8: ...he modem Safety Warnings l Never install telephone wiring during a lighting storm l Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations l This pro...

Страница 9: ...Figure 2 1 Unpacking the MT202TD The packing box contains the following items l One MT202TD modem l One MT202TD User Guide l One power transformer l One RJ11 RJ11 cable l One RJ11 RJ48 cable If any of...

Страница 10: ...for a space off for a mark The state of this LED matches that of the RD circuit on Pin 3 of the RS 232C V 24 interface CD Carrier Detect This LED lights when a valid carrier tone has been detected CT...

Страница 11: ...k test switch The factory default setting is for 4 wire full duplex operation in normal mode If you are using the modem in a 2 wire configuration or using one of the test modes you must change the swi...

Страница 12: ...or female connector at the computer or terminal end depending upon the computer or terminal connector Plug the RS 232C V 24 cable into the RS 232C V 24 con nector on the modem If screws were provided...

Страница 13: ...BA 103 Transmitted Data DTE 3 RD BB 104 Received Data DCE 4 RTS CA 105 Request to Send DTE 5 CTS CB 106 Clear to SendDCE 6 DSR CC 107 Data Set Ready DCE 7 SG AB 102 Signal Ground 8 CD CF 109 Data Carr...

Страница 14: ...ck using one of the two RJ11 cables provided with the modem 3 Remove the case see the next page Verify leased line transmit level DIP switch 5 setting is at either 0 dBm down or 9 dBm up Refer to the...

Страница 15: ...witches remove the modem s cover To remove the cover 1 Unplug the power transformer from the wall socket 2 Unplug the phone line 3 Turn the modem upside down 4 Remove the two screws 5 Place the modem...

Страница 16: ...N Four Wire Lease Line UP 4 Two Wire Lease Line UP Four Wire Lease Line DOWN 5 Transmit 0 dBm DOWN Transmit 9 dBm UP 6 Request to Send Forced On DOWN Request to Send Controlled by DTE UP on Pin 4 7 Re...

Страница 17: ...the receiver of the remote modem The other pair of wires should connect to the remote modem s transmitter Digital Analog Local Modem Computer or Terminal Remote Modem Analog Digital Computer or Termi...

Страница 18: ...terminal the two modems and the transmission line between the devices are functioning properly See the Digital Loopback Test section in this chapter for more information Local Analog Loopback Test The...

Страница 19: ...This digital loopback test is used on modems configured for four wire leased lines To perform this test the DLB switch on the modem s circuit board must be set to the DLB position see Figure 2 3 in Ch...

Страница 20: ...ich have been neglected altered abused used for a purpose other than the one for which they were manufactured repaired by Customer or any party without MTS s written authorization or used in any manne...

Страница 21: ...he product is out of warranty a check or purchase order for repair charges Extended two year overnight replacement agreements are available for selected products Please refer to our Overnight Replacem...

Страница 22: ...the Internet The Multi Tech Web site is http www multitech com The ftp site is ftp ftp multitech com Recording Modem Information Please complete the following information about your Multi Tech modem...

Страница 23: ...esidential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense This device complies with part 15 of the FCC Rules Operat...

Страница 24: ...ible modular jack that is Part 68 compliant See installation instructions for details 4 The ringer equivalence number REN is used to determine the number of devices that may be connected to the teleph...

Страница 25: ...e repairs made If the trouble is causing harm to the telephone network the telephone company may request you remove the equipment from the network until the problem is resolved 8 No repairs are to be...

Страница 26: ...sed Line Connection 17 Four Wire Multi Point Connection 17 I Indicators 7 Internet Addresses 22 L LED Indicators 10 Limited Warranty 7 Line Requirements 6 Local Analog Loopback Test 18 M Mode of Opera...

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