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Installing the Modem

Page

10

Additional Items You Need

To use your modem, you need the following additional items:

All users

: an RS-232 cable to connect a data terminal. The cable

must conform to the pin assignments shown on page 29.

Standalone modem users

: a two- or four-wire transmission line or

leased line and power supply.

Rack-mount modem users

: a modem rack with an available slot for

installing the modem.

Hardware Overview

Figures 2-1 and 2-2 show the front and back modem panels of
Standalone.

Figure 2-1 Front Panel

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Summary of Contents for MOT202TSA

Page 1: ...MOT202TSA MOT202TRM Modem User s Guide 0049 0119 000 Rev D...

Page 2: ......

Page 3: ...on the part of Raymar Information Technology Inc Raymar Information Technology Inc assumes no responsibility for any inaccuracies that may be contained in this User s Guide Raymar Information Technol...

Page 4: ......

Page 5: ...Jumper S3 2 wire 4 wire Mode 15 Jumper S4 Call Turnaround Squelch 15 Jumper S5 Transmit Carrier 16 Jumper S6 Local Copy 16 Jumper S8 Signal and Earth Ground 16 Jumper S9 RTS CTS Delay 17 Jumper S10 C...

Page 6: ...5 LOCAL MODEM TEST 25 LINE AND MODEM TEST 26 CHAPTER 5 SPECIFICATIONS 27 GENERAL 27 DIMENSIONS AND WEIGHT 28 TEMPERATURE RANGE 28 POWER REQUIREMENTS 28 INTERFACE PIN ASSIGNMENTS 29 DTE Connector EIA R...

Page 7: ...eatures The following list summarizes the modem s key features Bell 202T compatible Operates over voice grade leased lines or private lines 0 to 1200 bps operation for unconditioned line 0 to 1800 bps...

Page 8: ...odel only that model will be identified by its model number Using This Manual This manual contains all the information you need to install configure use and test your modem Chapter 1 contains general...

Page 9: ...your calls at 800 695 1951 Monday through Friday from 7 00 am to 5 00 pm Pacific Time Fax Number You can also send your requests for information to our 24 hour fax number 916 783 1952 E mail If you pr...

Page 10: ...Introduction Page 8 NOTES...

Page 11: ...a terminal equipment Away from extremes of temperature humidity and appreciable shock Note Be sure that there is a 4 inch minimum space at the back of the modem for signal line and interface cable cle...

Page 12: ...erminal The cable must conform to the pin assignments shown on page 29 Standalone modem users a two or four wire transmission line or leased line and power supply Rack mount modem users a modem rack w...

Page 13: ...r for connecting to a communications line Configuring the Modem The modem obtains some operating characteristics from jumper settings The default jumper settings are for common 4 wire full duplex appl...

Page 14: ...alling the Modem Page 12 Figure 2 4 on the next page shows the location of the modem jumpers Table 2 1 on page 13 summarizes the jumper settings default settings are bold Figure 2 4 Modem Jumper Locat...

Page 15: ...ransmit carrier Control Constant 16 S6 Local copy Enabled Disabled 16 S8 Signal and Earth ground Connected Separate 16 S9 RTS CTS delay 8 ms 33 ms 59 ms 219 ms 17 S10 Carrier Detect delay 6 ms 23 ms 1...

Page 16: ...configures the dynamic range of the modem receiver The selections are either 33 dBm or 43 dBm If the incoming signal is above 24 dBm use the default 33 dBm setting If the modem is operated on the netw...

Page 17: ...x operation the modem encounters an RTS to CTS delay when transmitting to slave modems increasing the turnaround time Set jumper S5 to controlled carrier for 2 wire half duplex operation Jumper S4 Cal...

Page 18: ...bled Disabled default Jumper S6 must be left in the default position of Disabled when operating on a 4 wire network It is also normally left in the default Disabled position when operating on a 2 wire...

Page 19: ...configures the modem s Carrier Detect turn on Delay timing The delay chosen must be consistent with the Clear To Send delay selection of the transmitting modem and must be less than the CTS delay The...

Page 20: ...ne default 4 seconds 7 6 seconds 14 seconds 28 seconds 56 seconds Jumper S13 lets you select an anti streaming time or use no anti streaming at all Anti streaming is typically used in multi point appl...

Page 21: ...port conform to the pin assignments shown under DTE Connector EIA RS 232 C on page 29 The DTE should have a cable no longer than 50 feet with a Cinch or Cannon plug per DB 19604 432 plus a DB 51225 1...

Page 22: ...dem 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 m...

Page 23: ...em TM ON the rotary switch is turned to Analog or Digital Loopback or the switch is in the Test Pattern transmit mode or Self Test mode and no error is detected CD ON the modem is detecting a valid ca...

Page 24: ...a on the COMM LINE The RS 232 C interface to the terminal is not active during this test See Figure 3 3 The test pattern dot pattern passes through the transmitter loops back into the receiver is demo...

Page 25: ...k Test DTE DTE RECEIVER TRANSMITTER PAD TRANSMITTER RECEIVER Local Modem Analog LoopBack Mode RXD TXD 4 Wire Telephone Line Remote Modem Data Mode Amplifier Digital Loopback Test DTE DTE RECEIVER TRAN...

Page 26: ...TRANSMITTER ERROR CHECK RECEIVER PAD Modem Self Test Mode 4 Wire Telephone Line Self Test TM TX RX Amplifier DTE DTE TEST PATTERN TRANSMITTER ERROR CHECK RECEIVER Local Modem Send Test Pattern Mode 2...

Page 27: ...dure describes how to run the local modem test using a locally attached DTE to generate a data pattern 1 Using the front panel test switch place the modem in Analog Loopback mode 2 Turn on the Request...

Page 28: ...owing procedure describes how to run the line and modem test using a locally attached DTE to generate a data pattern 1 Place the remote modem in Digital Loopback mode 2 Place the local modem in Data m...

Page 29: ...Frequency Shift Keyed FSK Carrier frequencies Mark 1200 Hz 1 Space 2200 Hz 1 Line impedance 600 ohms 10 transformer coupled and transient protected Transmitter output level Selectable from 0 to 14 dB...

Page 30: ...and Weight Width 7 00 inches 17 8 cm Length 9 60 inches 24 4 cm Height 2 25 inches 5 7 cm Temperature Range Operating 40 to 85 degrees Celsius Storage 40 to 85 degrees Celsius Humidity range 95 relati...

Page 31: ...C 107 Data Set Ready 7 AB 102 Signal Ground 8 CF 109 Data Carrier Detect 9 12 Volts Test Only 10 12 Volts Test Only 25 Analog Loopback Note All interfaces on the RS 232 C digital connector conform to...

Page 32: ...Specifications Page 30 NOTES...

Page 33: ...ision reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the...

Page 34: ...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 Reglem...

Page 35: ...maged due to normal use e operation of our products with equipment not supplied by Raymar f products which have had the serial number removed or made illegible or g products rented to others This warr...

Page 36: ...s you specific rights and you may have other rights which vary from province to province How To Use Raymar s Limited Warranty Service To take advantage of this warranty you must do the following If yo...

Page 37: ...Your phone number Fax number and email address For each item you wish to return List the product model number the serial number for each item you wish to return a description of the problem you are en...

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