Related Manuals for Midian Electronics PTA-16
Summary of Contents for Midian Electronics PTA-16
- Page 1 PTA-16 Parallel Tone Remote Adaptor Manual Revision: 2012-10-14 Covers Loader Firmware Revisions: 1.70 & Higher Covers Application Firmware Revisions: 1.00 & 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 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
Adaptor Mode: Midian’s PTA-16 is a tone remote adaptor (tone termination panel) that allows for control of up to 16 radios in parallel on one dedicated line by a tone remote controller. The 16 radios can be addressed individually (F1-F16) or in simulcast (F17). -
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 PTA-16. JP27 should be moved to the 2-3 position. - Page 6 Radio Interface: CON6 and CON2 are located in the middle of the back panel and are used to connect the PTA-16 to the base station radio or repeater. For Mini-TRC Mode only the power, ground, TX Output, RX Output and COR connections are needed.
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Page 7: Hardware Alignment
TX Input Line Level Adjustment: With the dedicated line connected to the PTA-16, connect a line level meter to the red and green (2-wire) or yellow and black (4-wire option) in bridging mode. - Page 8 Duplex Parallel Crossover Adjustment: If the PTA-16 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. If so, set RP15 for a...
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Page 9: Jumper Settings
JUMPER SETTINGS The following table shows the default jumper settings and their function: Jumper Default Position Description Number Fixed – 2-3 In PTT open collector transistor output Not used Not used Not Used JP13 Not Used JP14 Not Used JP15 Not used JP20 1-2 In –... -
Page 10: Controls & Indicators
CONTROLS & INDICATORS Power Switch: This is a single pole toggle switch on the front left of the PTA-16. 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 11: Operation
Receive: Upon receiving audio/signaling from the base station radio the PTA-16 will generate the high-level 2175 Hz guard tone followed by the unit’s function tone to ID the unit to the tone remote controller. The PTA-16 will then pass the audio/signaling to the line output to the tone remote controller. -
Page 12: Product Programming
The KL-4 and KL-3 Option 4 plug into the 3.5 mm stereo plug on the front of the PTA-16. Set the parameters of the PTA-16 to fit the application. Turn on power to the PTA-16 and send the program to the unit. -
Page 13: Tone Signaling Formats
3. Change the guard tone. The last solution involves re-tuning the notch filters on the PTA-16. This can be done at the factory upon request (recommended). It also requires that the guard tone and notch filters on the tone remote controller be changed as well. -
Page 14: 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 15 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 16: 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 17 VAN_A GUARD/HOLD TONE Approx 3.7Vpp NOTCH NULL * = NOT INSTALLED @-10dbm@1Kc R155 RP8 at center 100K DOCUMENT NAME TX_OUTPUT_ENABLE_DISABLE PTA-16 MIDIAN ELECTRONICS, INC. 2 Wire ihs7503e1_pta16_2w APPR DATE: 2005-01-17 DWN BY: SCHEMATIC SHEET PROJECT NUMBER 2 of 2 7503...
- Page 18 FOR BOARD REV INFORMATION PROG_IN RXD0 R226 F9 LED 100K PROG_OUT PJ7 68 * = NOT INSTALLED TXD0 R229 DOCUMENT NAME PTA-16 R219 MIDIAN ELECTRONICS, INC. 2 Wire ihs7503e1_pta16_2w F10 LED R235 C138 C137 C134 R213 APPR C135 C136 .22u .22u...
- Page 21 VAN_A GUARD/HOLD TONE Approx 3.7Vpp NOTCH NULL * = NOT INSTALLED @-10dbm@1Kc R155 RP8 at center 100K DOCUMENT NAME TX_OUTPUT_ENABLE_DISABLE PTA-16 MIDIAN ELECTRONICS, INC. 4 Wire ihs7503e1_pta16_2w APPR DATE: 2005-01-17 DWN BY: SCHEMATIC SHEET PROJECT NUMBER 2 of 2 7503...
- Page 22 FOR BOARD REV INFORMATION PROG_IN RXD0 R226 F9 LED 100K PROG_OUT PJ7 68 * = NOT INSTALLED TXD0 R229 DOCUMENT NAME PTA-16 R219 MIDIAN ELECTRONICS, INC. 4 Wire ihs7503e1_pta16_4w F10 LED R235 C138 C137 C134 R213 APPR C135 C136 .22u .22u...
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