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Telenetics MOT202TRM manual

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Table of contents for the manual

  • Page 1

    MOT202TSA/MOT202TRM Modem User’s Guide 0049-0119-000, Rev. A[...]

  • Page 2

    Page iii Contents CHAPTER 1 INTRODUCTION ......................................................... 5 S UMMARY OF K EY F EATURES ................................................................. 5 M ODELS ................................................................................................... 6 U SING T HIS M ANUAL .......................[...]

  • Page 3

    Contents Page iv CHAPTER 3 LEDS AND CONTROLS ........................................... 21 F RONT P ANEL LED S ............................................................................. 21 F RONT P ANEL T EST S WITCH ................................................................. 22 CHAPTER 4 TROUBLESHOOTING ..................................[...]

  • Page 4

    Page 5 Chapter 1 Introduction he Telenetics MOT202TSA standalone modem and MOT202TRM rack-mount modem are Frequency Shift Keyed (FSK) modems designed for asynchronous half-duplex communication on 2-wire private line circuits or full-duplex communication on 4-wire private-line circuits. Summary of Key Features The following list summarizes the m ode[...]

  • Page 5

    Introduction Page 6 Models The Telenetics modem is available in two m odels: c The MOT202TSA is a desktop modem. c The MOT202RTM is a rack-mount modem that installs into a standard 19-inch rack. In this manual, the term “ modem ” will be used to refer to both m odels collectively. If information pertains to one model only, that m odel will be i[...]

  • Page 6

    Contact Information Page 7 Contact Information For more information about Telenetics ’ MOT202TSA and MOT202TRM modems, or other Telenetics solutions, please contact us using any of the following methods. Voice Calls We welcome your calls at (949) 455-4000 Monday through Friday, from 8:00 am to 5:00 pm Pacific Time. Fax Number You can also send yo[...]

  • Page 7

    Introduction Page 8 N OTES[...]

  • Page 8

    Page 9 Chapter 2 Installing the Modem his chapter describes how to install the modem. Site Preparation The location where you install your modem should be: • Within six feet of a 115 or 230 VAC grounded outlet not controlled by a wall switch • No more than 50 feet from the data term inal equipment • Away from extremes of tem perature, humidit[...]

  • Page 9

    Installation Page 10 Additional Items Y ou Need To use your modem, you need the following additional item s: c All users : an RS-232 cable to connect a data terminal. The cable must conform to the pin assignm ents shown on page 29. c Standalone modem users : a two- or four-wire transmission line or leased line and power supply. c Rack-mount modem u[...]

  • Page 10

    Configuring the Modem Page 11 On the front panel of the modem, there are: c One Power LED and six status LEDs (see page 21) c A rotary test switch (see page 22) On the back panel of the MOT202TSA modem, there are: c A power cord or power input connector c A power switch for turning the modem on and off c A fuse, 3/8 amp, 250 Volt, slow-blow c A DB2[...]

  • Page 11

    Installation Page 12 Figure 2-4. Modem Jumper Locations[...]

  • Page 12

    Configuring the Modem Page 13 Table 2-1. Jumper Settings Jump er Function Settings See Page … S1 Carrier Detect control -33 dBm - 43 dBm 14 S2 Transmit level 0dBm -2 dBm -4 dBm -6 dBm -8 dBm -10 dBm -12 dBm -14 dBm 14 S3 2-wire/4-wire mode 2-wire 4-wire 15 S4 Call turnaround squelch Enabled Disabled 15 S5 Transmit carrier Control Constant 16 S6 L[...]

  • Page 13

    Installation Page 14 Note: The jumper positions in the following sections reflect the position of the jumpers on the modem board when you face the board as indicated in Figure 2-4 on page 12. Jumper S1 − Carrier Detect Control Settings: -33 dBm ( default ) -43 dBm Jumper S1 configures the dynamic range of the m odem receiver. The selections are e[...]

  • Page 14

    Configuring the Modem Page 15 Jumper S3 − 2-wire/4-wire Mode Settings: 2-wire 4-wire ( default ) Jumper S3 configures the modem for 2-wire or 4-wire operation. c When configured for 4-wire full-duplex operation, jumper S5 can be strapped to maintain constant carrier from the m aster modem to all slave modems at all tim es after the initial traini[...]

  • Page 15

    Installation Page 16 Jumper S5 − Transmit Carrier Settings: Control ( default ) Constant Jumper S5 places the transmitter under term inal control (default) or turns on the transmitter continuously in a 2-wire half duplex system. Jumper S6 − Local Copy Settings: Enabled Disabled ( default ) Jumper S6 must be left is the default position of Disab[...]

  • Page 16

    Configuring the Modem Page 17 Jumper S9 − RTS-CTS Delay Settings: 8 ms ( default ) 33 ms 59 ms 219 ms Jumper S9 configures the modem ’ s RTS-CTS delay. Four choices for selecting an RTS-CTS delay are available. Jumper S10 − Carrier Detect Delay Settings: 6 ms ( default ) 23 ms Jumper S10 configures the modem ’ s Carrier Detect turn on Delay[...]

  • Page 17

    Installation Page 18 Jumper S12 − Soft Carrier Turn Off Settings: None 8 ms ( default ) 26 ms Jumper S12 configures the modem to either turn off the transmitter immediately upon release of Request To Send, or send a Soft Carrier Turn Off signal of 900 Hz for 8 or 26 ms at the end of each transmission. Jumper S13 − Anti-Streaming Settings: None [...]

  • Page 18

    Connecting a DTE Page 19 Jumpers S14 and S15 − Self Test or Test Pattern Settings: 1 bps 18 bps ( default ) 37 bps 75 bps 150 bps Jumpers S14 and S15 configures the modem for Self Test or Test Pattern. When the modem is in local Self Test or Test Pattern m ode, it generates a dot test pattern. The supported baud rates are 1 bps, 18 bps, 37 bps, 7[...]

  • Page 19

    Installation Page 20 Powering-on the Modem To supply power to the modem, place the POWER ON switch on the modem back panel to the ON position. The PWR LED on the front panel goes ON. Powering-off the Modem To turn off power to the modem, place the POWER ON switch on the modem back panel to the OFF position. The PWR LED on the front panel goes OFF.[...]

  • Page 20

    Page 21 Chapter 3 LEDs and Controls his chapter describes the LEDs and controls on the modem. Front Panel LEDs Table 3-1 describes the LEDs on the modem front panel. Table 3-1. Front Panel LEDs LED Status PWR ON = power is being supplied to the modem. TM ON = the rotary switch is turned to Analog or Digital Loopback, or the switch is in the Test Pa[...]

  • Page 21

    Troubleshooting Page 22 Front Panel T est Switch The modem front panel has a five-position rotary switch that lets you select the modem ’ s operating mode. The five switch positions are: c DATA  use this position for normal data transmissions. c AL (Analog Loopback)  this position prepares the modem for testing by the local terminal device.[...]

  • Page 22

    Front Panel Test Switch Page 23 Figure 3-1. Analog Loopback Test Figure 3-2. Digital Loopback Test Fi g ure 1 - Analo g Loo p back Test DTE DTE RECEIVER TRANSMITTER PAD TRANSMITTER RECEIVER Local Modem Analo g Loo p Back Mode RXD TXD 4-Wire Tele p hone Line Remote Modem Data Mode Amplifier Di g ital Loo p back Test DTE DTE RECEIVER TRANSMITTER TRAN[...]

  • Page 23

    Troubleshooting Page 24 Figure 3-3. Self Test Figure 3-4. Transmit Test Pattern DTE TEST PATTERN TRANSMITTER ERROR CHECK RECEIVER PAD Modem Self Test Mode 4-Wire Tele p hone Line Self Test TM TX RX Am p lifier DTE DTE TEST PATTERN TRANSMITTER ERROR CHECK RECEIVER Local Modem Send Test Pattern Mode 2-Wire Tele p hone Line Remote Modem Receive Test P[...]

  • Page 24

    Page 25 Chapter 4 Troubleshooting his chapter describes troubleshooting procedures you can use in the unlikely event you encounter a problem with your modem . Local Modem T est The local modem test verifies the local m odem ’ s transmitter, receiver, and connection to the locally attached DTE. This test can be run either by generating a data patt[...]

  • Page 25

    Specifications Page 26 Line and Modem T est The line and modem test verifies the local m odem, the remote m odem, and the communications line between them . With this test, the local modem loops back received data to the transm itter and transmits the data to the remote modem . These characters can originate either from a locally attached DTE or by[...]

  • Page 26

    Page 27 Chapter 5 Specifications his chapter lists the specifications for the modem. General Operation: 2-wire half-duplex or 4-wire full-duplex private line operation. Data rate: 0-1200 bps asynchronous on worst case line. 0-1800 asynchronous on C2 conditioned line Modulation: Phase coherent. Frequency Shift Keyed (FSK) Carrier frequencies: Mark 1[...]

  • Page 27

    Specifications Page 28 Test features: Self Test, Analog Loopback, Digital Loopback, and Test Pattern Transmit Dimensions and We ight Width: 7.00 inches (17.8 cm) Length: 9.60 inches (24.4 cm) Height: 2.25 inches (5.7 cm) T emperature Range Operating: -40 to +85 degrees Celsius Storage: -40 to +85 degrees Celsius Humidity range: 95% relative, non-co[...]

  • Page 28

    Interface Pin Assignments Page 29 Interface Pin Assignments DTE Connector - EIA RS-232-C Pin RS-232C Circuit CCITT V.24 Circuit Function 1 AA 101 Protective Ground 2 BA 103 Transmitter Data 3 BB 104 Receive Data 4 CA 105 Request to Send 5 CB 106 Clear to Send 6 CC 107 Data Set Ready 7 AB 102 Signal Ground 8 CF 109 Data Carrier Detect 9  +12 V[...]

  • Page 29

    Specifications Page 30 N OTES[...]

  • Page 30

    Page 31 Appendix A Compliances FCC Rule This device complies with Part 15A of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested an[...]

  • Page 31

    Compliances Page 32 Department of Canada Statement This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.[...]

  • Page 32

    Page 33 Appendix B Limited Product Warranty Telenetics warrants that the Product sold will be free from defects in material and workmanship and perform to Telenetics' applicable published specifications for a period of 18 m onths from the date of delivery to Customer or 12 months from placement into service, whichever occurs first. The liabili[...]

  • Page 33

    Limited Product Warranty Page 34 N OTES[...]