UltraCom System Performance Specifications General: System Capacity The maximum capacity is 247 simultaneous audio sources (non-blocking). Each audio (radio) channel uses one audio source. Each operator position uses two. Information/Status A computer monitor screen with both a touch screen and a mouse/trackball input system. The dispatcher interface is based on a screen button System Programming Available at any Operator Position or stand alone 486/Pentium  computer. using the UltraCom software. The Customer's technical staff has  complete control of screen and button layout, button functions, and all level  adjustments. A graphical user interface is used for all programming features. Level Adjustments All system level adjustments are software programmable. There are  no pot adjustments or jumper switches on the system cards (except for a single on-board power supply adjust). All cards of the same type are interchangeable  without adjustment. Levels and functionality are provided by software. Diagnostics System The Medic Diagnostic System continuously monitors the system operations. The technician interface includes extensive on-line help and detailed error reports. Remote diagnostics mirror all local diagnostic features. Operating System Microsoft Windows®. The programming and operational demo software also run under Microsoft Windows 95® or newer. System and card software versions can be upgraded without requiring a card removal or a system shutdown. Transmitter Control Two-wire or four-wire control with any combination of tone, DC or  MUX relay keying control is standard. DTMF and single burst tones are supported. Telephone Interface A single telephone instrument interface is available at each Operator Position Telephone as standard. Telephone line interface cards are available at the Main Electronics Package II for shared access to telephone  lines. Recorder Interface Multiple instant recall recorders can be connected to the system at each operator's position. On-screen controls are supported for ATIS® and  Exacom® brand instant recall recorders. Public Address Output Any operator position can talk over a separately supplied public address system, using their headset or desk microphone. Relay Outputs, Position Fourteen relay outputs are available at each operator's position to operate door locks, alarms, and other external equipment. Relay Outputs, MEP Six relay outputs are available from each TRC (Transmit-Receive  Card), and each TRI (Tri-monitor card). FCC Requirements The system is in compliance with FCC Part 15, Subpart B, Class A Operating Temperature Ambient temperature ranging from 0 C to 40 C Console Response Time As measured at the point of demarcation, the console response time is on average, fifty milliseconds and does not exceed seventy milliseconds for  any single transmit operation. Screen Rewrite Time The screen rewrite time does not exceed two hundred milliseconds for any screen input that causes a console operation. Redundancy The Operator Positions are independent. Each position is capable of initializing and running the entire system. Failure of one position will not affect other positions or the rest of the system. Radio channel and monitor  cards in the system can be programmed as redundant cards. Eight digital audio  busses are provided. Two data communication busses are used, Main and Backup.  Change over is automatic if a card detects data bus failure. Two separate power supplies are provided for each rack. Power is distributed on separate shielded power cables. There are two separate power busses on the back plane of each card cage. All cards attach to the two power busses through diode coupled power  delivery systems. Power supplies are "hot pluggable" There is no down time to change power supplies. System Power The system operates from 85 to 132 volts or from 170 to 264 volts  with an input frequency of 47 to 63 Hz Each power supply has over voltage protection. Each card is protected by a self-resetting solid-state fuse. Power Consumption 250  watts max. per Operator Position. 150 watts max. per MEP II card cage. 100 watts max. per system printer. MEP to Position Interface Each position is connected to the MEP II with a dedicated T1 digital link. This two pair connection accommodates data communications and up to twelve speakers for the position. The two-pair connection choices are; a dedicated shielded cable, existing twisted phone cable, or existing category 5  LAN wiring.. Positions may be remoted up to 6000 feet without the use of  repeaters. The Operator Position is DC isolated from the MEP II to prevent ground loop problems. System Reconfiguration The User is able to change the configuration of the console  independent of the manufacturer by software programming. Some of the changes  that can be made by the customer include: Change Channel configuration Assignment of system card in the card cages. (2 Wire/ 4 Wire, Bridging/Terminating, Simplex/Duplex) Change channel labeling Change function tones associated with a channel. Change keying method. (Tone keying, DC keying, MUX) Change the number of keying controls defined for a channel. (e.g.  change from single frequency operation to two frequency operation) Change Cross Muting, Local Muting, Cross Busy, and Local Busy  settings for a channel. Add or delete channels. Change the labels, locations and functions of buttons not  associated with the channels. Change the screen layout and organization including pop-up screens. Plus many more features described in the Programming Manual. Transmit: Line Output Level From -35 to +10 dBm into a 600 ohm load. Tone Control All standard tones and timing. Adjustable Guard Tone frequency and timings. DC Control The constant current generator is adjustable in one half milliampere steps from zero to plus or minus fifteen milliamperes into a ten thousand ohm load. MUX Control A relay closure (SPST)during transmit. Termination (non Xmit) 600 ohms or 10K bridging, software selectable. Frequency Response - 3 dB to +1 dB from 300 Hz to 3200 Hz, referenced to 1000 Hz. Notch filter at 2175 Hz is excepted. Distortion Typically less than 2% at 1000 Hz. Hum and Noise Overall hum and noise level generated in the audio circuits of the console are a minimum of -47 dBm into a six hundred ohm load. Receive: Frequency Response - 3 dB to +1 dB from 300 Hz to 3200 Hz, referenced to 1000 Hz. Notch filter at 2175 Hz is excepted. Hum and Noise Overall hum and noise level generated in the audio circuits of the console are a minimum of 50 dB below the maximum output into the reference  speaker. Distortion Typically less than 2% at 1000 Hz Level Control An increase in input level of 30 dB above the knee of compression  does not change the output more than 3 dB. Termination 600 ohms or 10K bridging, software selectable. Audio Pops and clicks heard in a speaker are a minimum of 50 dB below  the maximum output of the speaker. Pops and clicks heard in the headset are a minimum of 55 dB below  the maximum output of the headset. Crosstalk between select and Unselect speakers is less than -45  dB. Crosstalk between Unselect speaker and the headset ear piece is  less than -55 dB. Crosstalk between any two console system positions is less than  -55 dB Crosstalk between any two selected transmit lines is less than -55 dB. Total Harmonic Distortion in both transmit and receive modes is  less than 3%.