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Summary of Contents for Midian Electronics TRC-2
- Page 1 TRC-2 F1 and F2 Tone Remote Controller Manual Revision: 2012-07-27 Covers TRC Firmware Revisions: 1.22 & Higher Covers Keyboard Firmware Revisions: 3.2 & Higher Covers Encoder/Decoder Firmware Revisions: 1.7 & Higher Covers PCB Revisions: G & Higher...
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Page 2: Table Of Contents
TABLE OF CONTENTS Specifications General Information Hardware Installation Hardware Alignment Jumper Settings Controls & Indicators Operation Theory of Operation Technical Notes Contact Information... -
Page 3: Specifications
SPECIFICATIONS Voltage/Current: Operating Voltage: 18 VDC Operating Current (standby): 170 mA Operating Current (RX): 310 mA Operating Current (TX): 170 mA RX Inputs: Input Impedance (RX): 600 Ohms Compression Threshold: Adjustable to –20 dbm Compression Range: Not more than 3 db change for 30 db increase above threshold Speaker Audio Output: 2.0 Watt Distortion:... -
Page 4: General Information
GENERAL INFORMATION Midian’s TRC-2 is a basic tone remote controller for F1 and F2 selection with optional DTMF dialing. The TRC uses EIA and Industry standards for monitor, guard, and F1-F2 function tones. The TRC comes standard with an internal microphone and speaker. A gooseneck microphone (TRC Option A) or handset and cradle (TRC Option C) are also available. -
Page 5: Hardware Installation
HARDWARE INSTALLATION Be certain to follow standard anti-static procedures when handling any of Midian’s products. Getting Started: The TRC has a number of adjustment potentiometers and configuration jumpers. These have been adjusted and configured at the factory for a typical installation. However, audio levels should be verified and adjusted (if necessary) at the time of installation. - Page 6 4-Wire & Line 1 Operation: For a single line 4-wire installation, connect pins 4 and 7 (black and yellow) for receive audio and pins 5 and 6 (red and green) for transmit audio. For this feature TRC Option F must be installed in the TRC.
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Page 7: Hardware Alignment
HARDWARE ALIGNMENT The following procedures assume a good quality dedicated line is being used and the tone remote adaptor is already installed. 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. -
Page 8: Jumper Settings
JUMPER SETTINGS The following table shows the default jumper settings and their function: Jumper Default Position Description Number JP101 Install during TX Notch Filter Alignment only JP201 Sidetone for optional DTMF dialing (4-wire option only) JP202 Removed when TRC Option E is installed (Line 2/Supervisor) JP203 Removed when TRC Option E is installed (Line 2/Supervisor) JP204... -
Page 9: Controls & Indicators
CONTROLS & INDICATORS PWR - LINE/SUP SEND - F1/F2 FREQ INTER MONITOR PQRS WXYZ SEND MENU OPER Power/Volume Switch: On the right side of the TRC, there is a switch which acts as the power and volume switch. The switch is in the power off position when turned fully clockwise past the click. Turning the switch counter-clockwise past the click turns the power on to the volume control. -
Page 10: Operation
OPERATION F1/F2Selection: To change the channel of the radio (F1 or F2), pressing the FREQ button once will give a single beep to indicate F1. Pressing this key again will give a double beep to indicate F2. Transmitting: After selecting the desired Function Tone for frequency selection, pressing and holding the SEND key will generate the High-Level Guard Tone followed by the continuous Low-Level Guard Tone. -
Page 11: Theory Of Operation
THEORY OF OPERATION Analog Circuit RX Audio Input Path: RX audio from a tone remote adaptor at the remote site travels down the phone line to the RJ-11 line interface connector PL-1. Line 1 uses the standard red/green Telco ring tip on positions 5 and 6 of the RJ-11 cable or pins 5 and 6 of the RJ-45 10-pin connector. - Page 12 Digital Circuit There are three microprocessors on the digital schematic page. U402 controls the keypad interface and generates the keyboard beeps to the speaker amp, it controls the speaker mute when the handset is taken off- hook. Additionally, it controls the optional Line 2/Supervisor to the line relay on the analog page. Microprocessor U401 generates the Guard Tone, function tones and signaling tones on its B0-B7 port.
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Page 13: 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 14 This page intentionally left blank...
- Page 15 R358 LM4950 TRC SERIES REV. DOCUMENT NAME MIDIAN ELECTRONICS, INC. R355 4.7K R363 100K Q301 TRC-7500 TRC-2 [2 Wire] 4.7K 6.2K Q304 NOTE5 - ONLY INSTALLED WHEN LCD OPTION REQUIRED. EAR_MUTE U303:4 APPR. SIZE SHEET DOCUMENT NUMBER DATE: 11/16/2004 DWN BY: AWS...
- Page 16 OPTION 500 - MDC FORMAT TRC SERIES REV. DOCUMENT NAME OPTION 600 - FLEETSYNC FORMAT FOR NOTE INFORMATION, PLEASE SEE ANALOG PAGE. MIDIAN ELECTRONICS, INC. TRC-7500 TRC-2 [2 Wire] APPR. SIZE SHEET DOCUMENT NUMBER DATE: 11/16/2004 DWN BY: AWS MCU SCHEMATIC...
- Page 19 R358 LM4950 TRC SERIES REV. DOCUMENT NAME MIDIAN ELECTRONICS, INC. R355 4.7K R363 100K Q301 TRC-7500 TRC-2 [4 Wire] 4.7K 6.2K Q304 NOTE5 - ONLY INSTALLED WHEN LCD OPTION REQUIRED. EAR_MUTE U303:4 APPR. SIZE SHEET DOCUMENT NUMBER DATE: 11/16/2004 DWN BY: AWS...
- Page 20 OPTION 500 - MDC FORMAT TRC SERIES REV. DOCUMENT NAME OPTION 600 - FLEETSYNC FORMAT FOR NOTE INFORMATION, PLEASE SEE ANALOG PAGE. MIDIAN ELECTRONICS, INC. TRC-7500 TRC-2 [4 Wire] APPR. SIZE SHEET DOCUMENT NUMBER DATE: 11/16/2004 DWN BY: AWS MCU SCHEMATIC...
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