Telenetics OM-AMPS-100 manual Operation, Modem Interface

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Section 3

Specifications

Specifications

3 This section describes the OMEGA specifications.

Operation

OMEGA is designed to connect a remote end point device equipped with an internal modem to a head end computer when a conventional land line is not available. The interface of the modem within the endpoint device must meet PSTN and FCC-68 requirements and be compatible with all standard TELCO handshake signaling.

Modem Interface

A standard RJ-11 modular jack connector provides the OMEGA’s modem interface. The connection is a standard 2-wire dial line interface that has the following specifications:

Output ring frequency:	18 ± 2 Hz
Ring voltage:	70 volts peak to peak
Maximum ringer’s equivalent:	2.0 B
Dial tone frequency:	450 Hz +/- 50 Hz
Dial tone level:	1.0 Volts +/- 20%
ON/Off-hook current detection:	>4 ma
DTMF detection:	Yes
Pulse dialing support:	Not supported

OMEGA Operation, and Maintenance Manual

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Contents OMEGA Page Table of Contents Using the Configuration Program Specifying a Default Port Anti-streaming Command Summary Table of Contents Product Overview PrefaceFigure P-1. Omega Application Ancillary Documentation Preface Installation Contents Introduction Hardware FeaturesFinding a Suitable Location Selecting a location for installing OmegaAvoiding Hazards Installing OmegaUnpacking Mounting Omega Required Materials and ToolsMounting an Antenna Mounting OmegaConnecting the Input Voltage Source Connecting an Input Voltage Source Connecting the Endpoint Device LED Powering Up OmegaActivating Your Cellular Transceiver Call Origination TestingOperating Omega Verifying the Cellular Transceiver UnitCall Answer Testing Contents Troubleshooting Contents Checking the Main Power Supply TroubleshootingChecking the Antenna Checking the Battery VoltageReinitializing Omega Specifications Specifications Modem Interface OperationCellular Transceiver Interface Battery OperationPower Supply Switches and LED IndicatorsConnectors Mechanical SpecificationsEnvironmental Specifications EMI/RFI Agency ComplianceSection Specifications Section Using Configuration Program Section Using the Configuration Program Prerequisites Getting Started COM Port Prompt Reading the Cellular Telephone SignalProgramming a Telephone Number Example of Signal BarEntering the Cellular Telephone’s SID Changing the Login PasswordExiting the Configuration Program Section External Antenna Guidelines Section External Antenna Guidelines Gain RF SignalGeneral Guidelines High Voltage AreasDegrees of Down-tilt on the Cell Site Antenna Array Antenna PlacementExternal Antenna Selection Criteria Distance from the Antenna to the Closest Cell SiteHeight Above Ground Level of the Antenna Cable for Connecting the Antenna to OmegaElectrical Interference Distance from the Antenna to OmegaDirectional Antenna Types of External AntennasElevated Feed 3dB Gain Antenna Contact Information Determining the Best External Antenna LocationSection External Antenna Guidelines Appendix a Port Expansion Module Option Appendix a Port Expansion Module Option Field Installation Package ContentsFirgure A-1. Sliding the Module into the Card Guides Figure A-2. Connecting the RJ-11 Jacks Connecting Endpoint Devices Testing the Module PortsTime Delay Method Automatic Connection Second Dial Tone Method Manual Connection Example Atdt 19495552468,,,4 EnterSpecifying a Default Port Anti-streaming To… Do the Following… Command SummaryAppendix B Warranty Compliances Appendix B Warranty & Compliances BWarranty and RMA Statement Limitations FCC Interference Statement FCC StatementFCC Part 15 Statement Comments About This Manual Index Index