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Digital Alert Systems. In the event of a breach of the foregoing warranty, the liability of Digital Alert Systems shall be limited to repairing or replacing the non-conforming goods and/or defective work, and in accordance with the foregoing, Digital Alert Systems shall not be liable for any other damages, either direct or consequential.
SPECIFICATIONS Number of Cue Tone Sequences: 1 set of On/Off standard, 2 to 4 optional Output Impedance: 600 , balanced Cue Tone Output Level: Adjustable, 2 mV to 2 V RMS Cue Tone Delay Time: Adjustable, 0.25 to 1.75 Sec. Cue Tone Transmission Rate: Adjustable, 5 to 200 digits/Sec.
DESCRIPTION The model 3000R-103A Dual Tone Sender is a preprogrammed CATV Cue Tone generator designed to place DTMF (Touch-Tone*) cues on CATV program audio. The cue tones are transmitted to provide CATV systems with unattended switching and can signal beginning and ending of: Daily Programming Program Segments...
INSTALLATION Three terminal strips are provided on the rear panel of the model R103A for external connections. PROGRAM AUDIO CONNECTION: Cue Tones can be inserted on the same carrier as the program audio or inserted on their own carrier. If they are to be inserted on the program audio carrier, it is necessary to ensure that no program audio is present while cue tones are being transmitted.
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REMOTE INDICATOR CONNECTION: Barrier strip TB2 terminals 1 through 9 provide connections for installation of remote indicators controlled by the internal Cue Tone Decoders. Any type of LED indicators with proper current limiting resistors can be used for remote indicators. TERMINAL CODE 1 ON (GREEN)
OPERATION When the Model R103A is first plugged into a 117 VAC outlet the front panel red indicator lamps will be “ON” for each channel that is installed. Pressing the front panel ON switch for any active channel will cause the R103A to send its preprogrammed Cue Tone out on TB2, terminals 11 and 12.
ADJUSTMENTS All adjustments are made with respect to barrier strip TB2, terminals 11 and 12. CUE TONE LEVEL: A screwdriver adjustment in the center of the rear panel is provided for adjustment of the Cue Tone level into the program audio. Maximum audio level is obtained by turning this control fully clockwise.
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Front View – R103A (with cover removed) Not used on R103A 3191 Coupler 3223B Controller (up to 2) 3185E Decoders (up to 4) 3171B Encoder...
DESCRIPTION The Model 3185E Dual Tone Decoder is capable of accepting a sequence of up to four dual tone signal inputs such as those from a Touch-Tone® telephone keypad. It provides a relay closure as its output. Standard features include: •...
INSTALLATION Mounting: The Model 3185E is designed to plug into a Model 3000RK 20-pin edge connector. All connections are intended to be made at the edge connector and will be referred to in this manual by edge connector number or letter. Pin Numbers and Functions: Pin numbers are listed below for the Model 3185E when plugged into a 3000RK Connector.
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FIGURE 1 Edge Connector, Switch and Indicator Locations and Modifications for 4 digit ON/OFF Operation FIGURE 2 Block Diagram...
Audio Input Connection: The audio input is connected at pins '6' and '5' (circuit common). The 3185E is factory set at 10 k input impedance; unbalanced. This audio input may be changed by the customer to have a termination instead of 10 kΩ, and also to be balanced instead of unbalanced. Consult the CUSTOMER OPTION section for more explanation.
CUSTOMER OPTIONS The Model 3185E is factory set to the following: • Input Impedance: 10 kΩ • Input: Unbalanced • 5 Minute Restoral: Enabled • Momentary Output for ON and OFF: Disabled • Output Relay: Latching • 4 Digit Decode Sequence •...
NUMBER OF DIGITS RELAY OUTPUT MODE LATCHING MOMENTARY ALTERNATE MOMENTARY OUTPUT FOR BOTH ON & OFF X = JUMPER INSTALLED O = JUMPER REMOVED R12 = INPUT SIGNAL LEVEL RANGE ADJUSTMENT JUMPER OPEN SHORTED INPUT IMPEDANCE ◼ 10kΩ 600Ω ◼ INPUT BALANCED UNBALANCED...
5 Minute Restoral: The 3185E may be selected to restore the output status for a power interruption of less than five minutes. The 3185E is factory set to enable this restoral. The J7 jumper is open. To disable the five minute restoral install a jumper on J7. Consult FIGURE 3 for J7 location. Momentary Output for ON &...
‘R8” and install two additional selection switches, S4 and S5, plus IC A3. When ordering the switches, please use Digital Alert Systems part number ‘9200002’ for each of the two switches and part number ‘9120375’ for the IC required.
OPERATION When the 3185E is connected to a DC power source, the Power/Valid Digit LED CR14 on the front edge of the PC board will be illuminated. This LED indicator will continue to illuminate until a valid DTMF digit is detected or DC power is removed from the board. The Valid Sequence LED CR15 will illuminate upon the decoding of a correct DTMF code tone pair in the proper sequence.
Operating With a 2-Digit Code: When a 2-digit code sequence is selected on the 3185E the switch program will be as follows: SWITCH 1 = first digit of code sequence for both 'ON' and 'OFF'. SWITCH 2 = second digit of code sequence for 'ON'. SWITCH 3 = second digit for code sequence for 'OFF'.
Digital Alert Systems. In the event of a breach of the foregoing warranty, the liability of Digital Alert Systems shall be limited to repairing or replacing the non-conforming goods and/or defective work, and in accordance with the foregoing, Digital Alert Systems shall not be liable for any other damages, either direct or consequential.
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