Telenetics DSP9612RM manual Connecting to a Transmission Line, Modular Jack Connectors

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Connecting to a Transmission Line

Figure 2-4. Modems Installed in the Rack

Connecting to a Transmission Line

The Universal Data Shelf has different Telco options. Your version may have 16 8-pin modular jack connectors, one for each slot in the Shelf. It may also have an optional 50-pin mass-termination Telco connector.

To connect your modem to a leased line using the modular jack connectors, refer to “Modular Jack Connectors,” below. To use the 50- pin mass-termination connector, refer to “Mass Termination Connector” on page 26.

Modular Jack Connectors

The rear panel of the Universal Data Shelf has an 8-pin RJ-45 jack for each slot in the Shelf. After you install the modem into a slot, connect the slot’s corresponding RJ-45 jack to a leased line.

Leased lines have four contacts: a transmit (Tx) pair and a receive (Rx) pair. For communication to occur:

cThe Rx line of the Shelf’s RJ-45 jack must connect to the Tx line of the other modem.

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Contents DSP9612RM Flash Poll Rack-Mount Modem User’s Guide Compliances Contents Contents Chapter Introduction Features Ancillary Documentation ApplicationsIntroduction Unpacking Your Hardware Chapter InstallationAdditional Items You Need Front View of Modem Hardware OverviewComponent View Configuring the Modem Installation SummaryConfiguring the Modem SW1-1 through SW1-4 − Transmit Level high- & low-speed modes SW1-5 − Receiver Dynamic Range high- & low-speed modes SW2-1 − Fast Poll/FSK high- & low-speed modes SW2-8 − Carrier Control high- & low-speed modes Low-Speed FSK Mode SW1-1 through SW1-4 Switch Settings SW1-6 and SW1-7 − RTS-CTS Delay low-speed mode only SW2-2 − CD Delay low-speed mode only SW2-5 − Soft Carrier low-speed mode only Installing the Modem in the Universal Data Shelf Installing the Modem in the Universal Data ShelfInstalling the Modem Modular Jack Connectors Connecting to a Transmission LineConnecting an RS-232 Device DLB LEDsIllustrates these three diagnostics Loopback Control SwitchProblem Solving Appendix a TroubleshootingPage General Specifications Appendix B SpecificationsMechanical Specifications RS-232 RTU Interface Back-to-Back Connections to a Second ModemCompliances Environmental SpecificationsAppendix C Limited Product Warranty Return Merchandise Authorization RMA Procedure Appendix D RMA Procedure