Related Manuals for Midian Electronics TTC-1
Summary of Contents for Midian Electronics TTC-1
- Page 1 TTC-1 F1 to F16 Tone Remote Adaptor – Tone Termination Panel Manual Revision: 2013-03-26 Covers Loader Firmware Revisions: 1.70 & Higher Covers Application Firmware Revisions: 1.80 & Higher Covers PCB Revisions:...
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Page 2: Table Of Contents
TABLE OF CONTENTS Specifications General Information Hardware Installation Hardware Alignment Jumper Settings Controls & Indicators Operation Product Programming Tone Signaling Formats TTC-1 Option A: Wildcard for Remote Monitoring & Control Theory of Operation Technical Notes Contact Information... -
Page 3: Specifications
SPECIFICATIONS Voltage/Current: Operating Voltage: 13-18 VDC Operating Current (standby): 125 mA LED Current: 4 mA Fuse Protection Auto Resettable with surge suppression: 300 mA RX Input from Radio: Compression Range: Not more than 3 db change for 30 db increase above threshold Frequency Range: 300-3000 Hz Notch Filter Depth:... -
Page 4: General Information
1200 frequency domain scrambler (TTC Option N) or Midian’s VPU-15 voice inversion scrambler (TTC Option H) interfaced to the TTC-1. The standard configuration of the TTC-1 is for a 2-wire system. A 4-wire option (TTC Option J) is available for these types of systems. -
Page 5: Hardware Installation
(Line In) and pins 5 and 6 (red and green) for receive audio from the base station (Line Out). For this feature TTC Option J must be ordered and installed in the TTC-1. JP27 should be moved to the 2-3 position. - Page 6 CON6-8 (White): RX Input: Connect the receive audio in the base station after the sub-audible hi-pass filter and at some point that gives flat audio to the TTC-1. Speaker audio is fine if it is single ended, but make certain the volume control cannot be turned down accidentally.
- Page 7 CON2: CON2-1 (Gray): RXD: Future Use. CON2-2 (Orange): TXD: Future Use. CON2-3 (Violet): F3 or Binary Select 1: This output is an open-drain FET than can pull the radio’s channel select line to ground. This line can be used with CON2-4, CON2-5 and CON2-6 for multi-line (2, 3 or 4 line) binary channel selection.
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Page 8: Hardware Alignment
HARDWARE ALIGNMENT The alignments are preset at the factory and should not need to be adjusted during installation. However, if an adjustment is needed please follow the procedures below. TX Input Line Level Adjustment: With the dedicated line connected to the TTC, connect a line level meter to the red and green (2-wire) or yellow and black (4-wire option) in bridging mode. - Page 9 RX Output Line Level Adjustment: With voice being received from the base station adjust RP6 while monitoring the line out with a line level meter and set for approximately -10 dBm on average voice or -5 dBm on peak voice. Duplex Parallel Crossover Adjustment: If the TTC is ordered with the 4-Wire Option it may be necessary or desirable for one tone remote controller to hear another and to pass its keying tone to the other tone remote(s) to activate the busy light.
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Page 10: Jumper Settings
JUMPER SETTINGS The following table shows the default jumper settings and their function: Jumper Default Position Description Number 1-2 Out – 2-3 In PTT open collector transistor output or relay selection 1-2 Out – 2-3 In Active low versus active high selection for PTT Relay 1-2 Out –... -
Page 11: Controls & Indicators
CONTROLS & INDICATORS Power Switch: This is a single pole toggle switch on the front left of the TTC-1. The down position is off and the up position is on. Power LED: This red LED indicates that power is applied to the unit and that the switch is on. -
Page 12: Operation
OPERATION Channel Change: Depending on how the TTC is set up, upon receiving a function tone F1-F16 the TTC will give an open collector output to ground (discreet or binary) to cause the base station radio to change to the desired radio channel. -
Page 13: Product Programming
The KL-4F and KL-4F-PC1 plug into the 3.5 mm stereo plug on the front of the TTC-1. Set the parameters of the TTC-1 to fit the application. Turn on power to the TTC-1 and send the program to the unit. - Page 14 High Level Guard Tone Duration: This field is programmable from 0.05 to 9.99 seconds in 10 millisecond increments. This sets the length of the high level 2175 Hz guard tone. 120 milliseconds is the EIA standard time. Freq/Func Tone Duration: This sets the length of the frequency/function tone. 40 milliseconds is the EIA standard time.
- Page 15 F1/F2 Relay Enable: If using the optional relays instead of the open collector transistor outputs, check this box. When the relay is energized the unit has F2 selected and when relaxed F1 is selected. High Level Guard Clamp: If checked, upon detection of a high-level guard tone being broadcast by the tone remote control, the unit will forcibly mute the incoming receive audio from the base station radio.
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Page 16: Tone Signaling Formats
TONE SIGNALING FORMATS Signaling Format Compatibility In tone remote systems, the industry standard 2175 guard tone is filtered out by the tone remote adapter at the base station so that it is not heard over the air. This filter can affect some 5-Tone and 2-Tone signaling formats close to 2175 Hz. -
Page 17: Ttc-1 Option A: Wildcard For Remote Monitoring & Control
Hardware Connections: Connection to TTC-1: Plug one side of the supplied RJ cable into CON3 on the TTC Option A and plug the other side into CON3 on the TTC-1. Relay Outputs: The relay outputs are Dual Form C rated for 0.3 Amps at 120 VAC and offer a normally open and a normally closed set of contacts, as well as a center common point to connect to a common ground. -
Page 18: Theory Of Operation
THEORY OF OPERATION TX Voice Path: Phone line audio from the tone remote controller is fed into the TX voice path in simplex mode through transformer T1. In 4-wire mode it is fed into transformer T2 and is selected by jumper JP27. Both transformer circuits have surge suppression and an auto-resettable polyswitch for lightning protection. - Page 19 Power Supply: 13-18 VDC is input on the red wire of the Radio Interface connector and then into S1 the ON/OFF switch through RF inductor L7 into a resettable polyswitch. D22 is a polarity protection diode that is designed to pop the resettable fuse if power is hooked up backwards.
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Page 20: Technical Notes
TECHNICAL NOTES No technical notes are available at this time. MIDIAN CONTACT INFORMATION MIDIAN ELECTRONICS, INC. 2302 East 22 Street Tucson, Arizona 85713 USA Toll-Free: 1-800-MIDIANS Main: 520-884-7981 E-mail: sales@midians.com Web: www.midians.com... - Page 21 6 VOLTS 100K U8:3 R352 VOICE_STORE SECONDARY_RX_LINE_EN_DE ANALOG REFERENCE 100K LM324 DUPLEX_PARALLEL_CROSSOVER LM324 100K U8:1 TELCO_FEEDBACK_DISABLE R307 VAN_A TTC-1 TELEMETRY RADIO OPTION 560p 4.7u 4.7u D24:1 .47u 9.1K VAN_A EARTH CHASSIS GROUND D24:2 FUNCTION TONE DETECTION 750K R116 R192 C139 TP15...
- Page 22 R332 2.2K SCR_OFF_HOOK R331 C198 RELAYS +12V 100K R333 .47u PA4 45 C145 ADC INPUT PAD10 HOOK TTC-1 ONLY PAD07 FUTURE USE D5:1 HOOK LED R334 R336 2 2 3 3 PAD4 SCR_PTT_IN FUTURE USE 4.7K PT2 7 R335 +12V...
- Page 25 6 VOLTS 100K U8:3 R352 VOICE_STORE SECONDARY_RX_LINE_EN_DE ANALOG REFERENCE 100K LM324 DUPLEX_PARALLEL_CROSSOVER LM324 100K U8:1 TELCO_FEEDBACK_DISABLE R307 VAN_A TTC-1 TELEMETRY RADIO OPTION 560p 4.7u 4.7u D24:1 .47u 9.1K VAN_A EARTH CHASSIS GROUND D24:2 FUNCTION TONE DETECTION 750K R116 R192 C139 TP15...
- Page 26 R332 2.2K SCR_OFF_HOOK R331 C198 RELAYS +12V 100K R333 .47u PA4 45 C145 ADC INPUT PAD10 HOOK TTC-1 ONLY PAD07 FUTURE USE D5:1 HOOK LED R334 R336 2 2 3 3 PAD4 SCR_PTT_IN FUTURE USE 4.7K PT2 7 R335 +12V...
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