JP304 Midian TRC 400 Controller

User Manual: JP304

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TRC-400

Tone Remote Controller with Harris’ G-Star ANI Decoding

Manual Revision: 2012-07-27

Covers TRC Firmware Revisions:

1.22 & Higher

Covers Keyboard Firmware Revisions:

3.2 & Higher

Covers Encoder/Decoder Firmware Revisions:

4.0 & Higher

Covers PCB Revisions:

G & Higher

TABLE OF CONTENTS

Specifications 3

General Information 4

Hardware Installation 5

Hardware Alignment 7

Jumper Settings 9

Controls & Indicators 10

Operation 12

Product Programming 15

Tone Signaling Formats 25

System Error Messages 27

Theory of Operation 29

Technical Notes 31

Contact Information 31

SPECIFICATIONS

Voltage/Current:

Operating Voltage: 18 VDC

Operating Current (standby): 210 mA

Operating Current (RX): 380 mA

Operating Current (TX): 220 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: Less than 3% at full audio

Hum & Noise: 50 db below normal operating level

Frequency Response: Less than 3 db from 300 Hz-3 KHz

Notch Filter Depth: 45 db relative to 1 KHz below compression

TX Outputs:

TX Output: Adjustable to +15 dbm on 2175 Hz

Output Impedance (TX): 600 Ohms

Mic Compression Threshold: Adjustable typically 50 mv

Compression Range: Not more than 3 db change for 30 db increase above threshold

Hum & Noise: 50 db below normal operating level

Notch Filter Depth: 45 db relative to 1 KHz below compression

Mechanical:

Dimensions: 2.875" H x 6.5” W x 8.75" L

Operating Temp (excluding LCD): -30° to +60° C

Default Control Tone Frequencies & Timing:

Function Tone Frequency Level & Duration Function

Tone Default Level & Duration

High-Level Guard 2175 Hz 10 dBm for 120 msec F8 1250 Hz 0 dBm for 40 msec

Low-Level Guard 2175 Hz -20 dBm continuous F9 1150 Hz 0 dBm for 40 msec

Monitor 2050 Hz 0 dBm for 40 msec F10 1050 Hz 0 dBm for 40 msec

F1 1950 Hz 0 dBm for 40 msec F11 950 Hz 0 dBm for 40 msec

F2 1850 Hz 0 dBm for 40 msec F12 850 Hz 0 dBm for 40 msec

F3 1750 Hz 0 dBm for 40 msec F13 750 Hz 0 dBm for 40 msec

F4 1650 Hz 0 dBm for 40 msec F14 650 Hz 0 dBm for 40 msec

F5 1550 Hz 0 dBm for 40 msec F15 550 Hz 0 dBm for 40 msec

F6 1450 Hz 0 dBm for 40 msec F16 2350 Hz 0 dBm for 40 msec

F7 1350 Hz 0 dBm for 40 msec F17 2450 Hz 0 dBm for 40 msec

Encode Formats:

DTMF (0-9, *, #, A, B, C)

5-Tone (CCIR, DZVEI, DDZVEI, EEA, EIA, Eurosignal, MODAT, NATEL, ZVEI)

2-Tone

Pulse Tone (1500 Hz & 2805 Hz)

Decode Formats:

Harris’ G-Star ANI and Emergency ANI

GENERAL INFORMATION

Midian’s TRC-400 is a tone remote controller with Harris’ G-Star ANI and ENI display decoding with dialing

capabilities in DTMF, 5-Tone, Pulse Tone and 2-Tone. The TRC uses EIA and Industry standards for monitor,

guard, and F1-F16 function tones. Midian also adds F17 for additional function control when used with Midian’s

TTC-1. The built-in display shows the frequency/function selection, real-time clock and the decoded ANI/ENI with

Alias.

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. The standard configuration is for a 2-wire and single line

system. A 4-wire option (TRC Option F) or a Line 2 option (TRC Option E) is available for these types of systems.

Midian’s TRC can be used with Midian’s TTC-1, tone remote adaptor, or another manufacturer’s tone remote

adaptor that uses EIA and industry standard F1-F16 function tones.

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. Also, the configuration jumpers should be inspected prior to installation to

verify that they are in the right configuration. Jumper descriptions appear in the jumper settings section with a

quick reference table. NOTE: The Zener Diode D-605 is installed to reduce the input voltage to regulators U601

and U602. D-605 is operating within specifications however when the TRC is open for adjustment, care should be

used to avoid touching the diode as it can be hot to the touch.

Line Interface

The line interface connector PL1 is a 10-pin RJ-45 style connector in the center of the back panel. A standard 4-

pin RJ-11 cable will plug into the RJ-45 and connect to the center 4-pins that are needed for 2-wire or 4-wire

interfaces. The remaining 6 pins are for use with a telemetry radio or microwave E&M options and for future

interoperability options.

2-Wire & Line 1 Operation: For a single line, 2-wire installation, simply connect pins 5 and 6 (red and green) to

the dedicated line. This is the standard configuration for the TRC. See table 3.1.

Table 3.1

Pin Color 2-Wire

PL1-4 Black Not Used

PL1-5 Red Line 1

PL1-6 Green Line 1

PL1-7 Yellow Not Used

2-Wire with Line 1 & 2 Operation: For a 2-line, 2-wire installation connect pins 5 and 6 (red and green) for line 1

and pins 4 and 7 (black and yellow) for line 2. For this feature TRC Option E must be installed in the TRC.

Remove JP202 and JP203 for proper operation. See table 3.2. Please note that the 4-Wire Option (TRC Option

F) is not available in Line 2 operation.

Table 3.2

Pin Color 2-Wire

PL1-4 Black Line 2

PL1-5 Red Line 1

PL1-6 Green Line 1

PL1-7 Yellow Line 2

Diagram 3.1

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. JP204 should be moved to the 3-4 position. See table 3.3. Please note that the Line 2/Supervisor

Option (TRC Option E) is not available in 4-wire operation.

Table 3.3

Pin Color 4-Wire

PL1-4 Black RX

PL1-5 Red TX

PL1-6 Green TX

PL1-7 Yellow RX

Parallel Remote Operation: When multiple remotes are connected to a single dedicate phone line JP304 must

be installed in the unit furthest from the phone line connection. All remaining units must have JP304 removed.

Diagram 3.2 – Parallel Remote Wiring

Supervisor Operation: When using the supervisor option (TRC Option E), the supervisor TRC is connected to

the line via pins 2 and 3. The remaining TRC’s pins 5 and 6 are connected in parallel to the supervisor’s TRC pins

4 and 7. To enable these remotes, the supervisor relay must be engaged by pressing the * and # keys

simultaneously.

Diagram 3.3 – Supervisor Wiring

Telemetry Radio: Rather than connecting the TRC to a dedicated line to communicate with the tone remote

adaptor, telemetry radios can be used for communication. If connecting to a telemetry radio connect PL1 as

follows to the radio:

PL1-3: PTT Output: Connect to the PTT of the radio. Jumpers JP210 1-2 and JP208 1-2 should be installed.

PL1-6: TX Audio Output: Connect to the mic-hi input of the radio. Install JP205 2-3.

PL1-7: RX Audio Input: Connect to a point in the radio providing flat receive audio. Install JP11 1-2 & remove

JP204.

PL1-9: Battery: 15 volts through a 100 Ohm current limiting resistor (R216).

PL1-10: Ground: Connect to the ground of the radio.

Microwave: Connect the 4-wire audio to the TX and RX sides of the microwave. If the M lead is desired install

JP208 1-2 and JP10 1-2. Connect the microwave’s M lead to PL1 Pin 3 for an open collector to ground. If using

an external relay to control the microwave’s M lead you may use Q205 to provide 12 volts and install JP207 1-2

and JP208 2-3.

PL1-8: External Speaker or PA System

TRC

6 5

TRC

6 5

TRC

To Tone

Remote

Adaptor

JP304

Out JP304

To Tone

Remote

Adaptor

TRC

6 5

TRC

Supervisor

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.

RX Input Line Level Adjustment:

1. With the dedicated line connected to the TRC, connect a line level meter to the red and green (or yellow & black

with the 4-wire option) in bridging mode. If testing on a bench with no tone remote adaptor available use termination

mode on the line level meter.

2. With the line level meter generating Low-Level Guard Tone at -20 dBm, monitor TP304 with an oscilloscope.

3. Adjust RP306, so that 200 mV p-p is seen at TP304 or 165 mV p-p is seen at TP301. If paralleling multiple remotes,

this alignment should be done with all remotes attached.

TX Output Line Level Adjustment:

1. With the dedicated line connected to the TRC, connect a line level meter to the red and green in bridging mode. If

testing on a bench with no tone remote adaptor available use termination mode on the line level meter.

2. Set RP201 to 90%.

3. Push and hold the SEND key on the TRC to generate the Low-Level Guard Tone.

4. Adjust RP202 so that the line level meter shows the Low-Level Guard Tone at -20 dBm. If paralleling multiple

remotes, this alignment should be done with all remotes attached.

RX Notch Filter Alignment:

1. Generate the 2175 Hz Low-Level Guard Tone to the TRC.

2. Turn RP303 fully clockwise.

3. Monitor TP303 with a Sinadder. The sensitivity of the Sinadder should be adjusted to hear the tone.

4. Adjust RP302 until the tone is at it’s most diminished point.

5. Adjust RP303 until the tone fully diminishes.

6. Repeat steps 4 and 5 until no tone remains.

TX Notch Filter Alignment:

1. Unplug the internal microphone from the TRC, install JP101 1-2 and turn RP102 fully clockwise.

2. Push and hold the SEND key on the TRC to generate the 2175 Hz Low-Level Guard Tone.

3. Monitor TP103 with a Sinadder. The sensitivity of the Sinadder should be adjusted to hear the tone.

4. Adjust RP103 until the tone is at it’s most diminished point.

5. Adjust RP102 until the tone fully diminishes.

6. Repeat steps 4 and 5 until no tone remains.

7. After aligning the TX notch filter, remove JP101 and plug back in the internal or gooseneck microphone.

Handset Ear Level (TRC Option C Only):

1. With a field radio talking on channel to the TRC, adjust RP304 to a comfortable level.

Harris’ G-star Decode Level Alignment:

The PLL comes adjusted from the factory. However, in the event it becomes necessary to readjust the phase-lock loop,

perform the following steps:

1. Ground TP506.

2. Monitor TP505 and adjust RP503 for 18 kHz.

3. Remove the ground from TP506

4. Monitor TP505 and adjust RP502 for 25.6 kHz.

JUMPER SETTINGS

The following table shows the default jumper settings and their function:

Jumper

Number Default Position Description

JP101 Out Install during TX Notch Filter Alignment only

JP201 Out Sidetone for dialing (4-wire option only)

JP202 In Removed when TRC Option E is installed (Line 2/Supervisor)

JP203 In Removed when TRC Option E is installed (Line 2/Supervisor)

JP204 1-2 In – 3-4 Out 2-wire (1-2 In 3-4 Out) or 4-wire option (1-2 Out 3-4 In)

JP205 1-2 In – 2-3 Out Balanced (1-2 In 2-3 Out)/Unbalanced (1-2 Out 2-3 In) Audio

Selection for use with a telemetry radio instead of a dedicated line.

JP206 Out Power with current limit.

JP207 Out Activates Q205 to provide 14 V to external M lead relay.

JP208 Out If JP208 1-2 is installed with JP210 1-2, provides an open-collector

to ground on PL1-3 to PTT a telemetry radio or ground a relay for

an M lead.

JP209 In Always installed unless directed otherwise by Midian.

JP210 1-2 Out – 2-3 Out Install JP210 1-2 with JP208 1-2 to PTT a telemetry radio.

JP301 1-2 In – 2-3 Out Future Use

JP302 Out Handset Audio Feedback. Install only with the TRC Option C if dial

tones and voice in the ear piece are desired.

JP303 Out TX Audio Loading. If less TX audio is needed, install this jumper.

JP304 In 2-Wire RX Audio Termination. If more RX audio is needed, remove

this jumper. This should only be needed if paralleling remotes.

JP305 Out 4-wire option only. RX Audio Loading. If less RX audio is needed,

install this jumper.

JP306 Out 4-wire option only. RX Audio Termination. If more RX audio is

needed, remove this jumper. This should only be needed if

paralleling remotes.

JP307 1-2 Out – 2-3 In With 2-3 installed the volume control switch is the main source of

controlling the handset ear piece audio level. With 1-2 installed and

2-3 removed, the volume control switch does not affect the handset

ear piece audio level and RP304 is the only source of control.

JP308 Out Low impedance audio for external speaker or PA System.

JP309 In Leave In: In for hard mute and out for soft mute

JP401 Out Factory Use Only

JP409 Out Factory Use Only

CONTROLS & INDICATORS

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. At this point the volume is in the low

position. Turning the switch further counter-clockwise increases the volume.

LCD: The 2-line LCD displays the time and unit ID on the first line and the frequency selection and frequency

alias on the second. When a dialing sequence is performed the second line is cleared and the dialing sequence is

displayed. Channel changes are also shows between parallel remotes.

LED 1 (PWR - LINE/SUP): This LED is a bi-color LED. The LED will glow red when the power is on to the TRC. It

glows orange when Line 2/Supervisor mode is active.

LED 2 (SEND - F1/F2): This LED is a tri-color LED. The LED will glow red during transmit of Freq 1 and orange

during transmit of Freq 2. It glows green when Guard Tone is detected from a parallel tone remote.

FREQ: The FREQ button acts as the frequency select and the function select key. Pressing this key followed by

0-17 will select the associated frequency or function. When using the TRC with Midian’s TTC-1 tone remote

adaptor both frequency and function tones are available. When using the TRC with another manufacturer’s tone

remote adaptor the frequency tones are selectable.

INTER: Pressing the INTER key will allow intercom communications between several connected tone remotes

without transmitting over the radio. When the INTER key is pressed and held, the audio is routed on the line

without the Guard Tone activating the transmitter. Other tone remotes on the same line will hear the audio

automatically. No cross mute is available in intercom mode since there is no Guard Tone present.

MONITOR: Pressing the MONITOR key will allow the user to monitor the channel before pressing the SEND key

to make a call. If a conversation is heard then another co-channel user presently “owns” the channel and should

not be interrupted.

1 ABC

2 DEF

GHI

4 JKL

5 MNO

PQRS

7 TUV

8 WXYZ

* OPER

0 CLR

FREQ INTER

MONITOR

SEND

◄ SCROLL ►

PWR - LINE/SUP SEND - F1/F2

12:00 ID: 1234

Freq: 01 Fire 1

SEND: Pressing SEND will transmit the high-level guard tone for 120 msec, followed by the frequency tone for 40

msec, followed by the low-level guard tone that keys the radio with the voice and dialing riding over the low-level

continuous tone.

0-9 Keys: Used in conjunction with the FREQ key these number keys can be used to select the

frequency/function tone.

*/MENU: The MENU key takes the user into call mode and setup mode.

#/CLR: When CLR is pressed, any keyboard entries in the buffer will be cleared.

OPERATION

The TRC has 4 operating modes:

Control Mode: This is the normal operating mode. It allows for remote control of a base station equipped with a

tone remote adaptor such as Midian’s TTC-1.

ANI Review Mode: This mode is for viewing the last 10 ANI’s stored in the ANI log.

Call Mode: This mode is for encoding DTMF, 5-Tone, 2-Tone or Pulse Tone.

Menu Mode: This mode is for configuring the TRC programmable features.

Control Mode:

In Control Mode the LCD display the time and ID of the last ANI received on the first line. On the second line the

selected frequency is displayed along with the programmed alias for that channel. If using with other Midian

TRC’s (revision G and higher), the paralleled remotes will also show the channel change on the display.Note:

Upon decoding of an ANI the LCD will toggle briefly between Control Mode and ANI Review Mode.

Frequency versus Function: The F1-F17 tones are referred to, industry wide, as Function Tones, but are used

as frequency selector tones to control the base station radio channel selection. Midian, with it’s TTC-1 tone

remote adaptor can use the Function Tones for either frequency selection or for controlling a function for remote

monitoring and control. These functions can be used for turning on/off a scrambler in the TTC-1, controlling voice

prompts from the TTC-1, or providing outputs from the TTC-1 to the TTC Option A (wild card module) for remotely

controlling equipment. If using the TRC with the LCD Option (TRC Option I) the TRC will display the Frequency

and the Function. For example, Frequency 1 can be selected while controlling Function 5 and the display will

show “Freq: 01 Func: 05”. A frequency and function should not share the same Function Tone. For example, if

only channel 1 and 2 at the base station need to be controlled (F1-F2), this leaves F3-F17 for use as function

control. If 16 channels need to be controlled at the base station (F1-F16), this leaves F17 for use as function

control.

Frequency Selection: To change the channel of the radio (F1 up to F16), press the FREQ button followed by a

single digit number for F1-F9 or a double digit number for F01-F16. When the Function Tone is selected, the TRC

sends the High-Level Guard Tone followed by the selected Function Tone to the tone remote adaptor to change

the channel of the radio. If using with other Midian TRC’s (revision G and higher), the paralleled remotes will also

show the channel change on the display.

Function Selection: To control a function press the FREQ button followed by a single digit number for F1-F9 or a

double digit number for F10-F16. When the Function Tone is selected, the TRC sends the High-Level Guard Tone

followed by the selected Function Tone to the TTC-1 to command the function control. Note: The selection of a

function does not cancel any frequency selection. If the TRC is on Frequency 1 and Function 5 is selected, the

tone remote adaptor will remain on Frequency 1.

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. The user speaks

into the microphone of the TRC and the voice goes out over the Low-Level Guard Tone.

12:00 ID: 1234

Freq: 01 Fire 1

Monitor: Prior to transmitting or dialing, the user should Monitor the channel to see if there is activity on the

channel. If there is activity, the user should wait until the channel is clear. Pressing the MONITOR button sends

the High-Level Guard Tone followed by the Monitor Function Tone to the tone remote adaptor giving it a

command to open the squelch of the radio. Depending on the tone remote adaptor this can be momentary or

latched. If momentary, the tone remote adaptor will close the squelch of the radio after a set amount of time. If

latched, the squelch will remain open until the tone remote adaptor receives a second Monitor command from the

TRC.

Receiving: When a field radio keys up, the tone remote adaptor passes the voice down the line to the TRC. The

voice will then be passed through to the internal speaker of the TRC.

Line 2/Supervisor Capability (* + #): If the TRC is ordered with TRC Option E, then the TRC is equipped with

the Line 2/Supervisor Capability. Line 2 is used for toggling between 2 different base station radios and

Supervisor is used to shut down any paralleled remotes. Pressing the * and # keys simultaneously activates the

Supervisor or the Line 2 mode depending on the options installed in the unit. Pressing the keys again deactivates

the Supervisor or the Line 2 mode. When activated LED 1 changes from red to orange.

Memory Dialing: The TRC supports up to 9 memory dials (1-9). Press and release the * key, followed by the

desired 1-9 number key for 1 second.

Last Number Redial: The TRC can recall the last sequence dialed by pressing and releasing the * key followed

by the SEND key.

ANI Review Mode:

Pressing FREQ and INTER at the same time while in Control Mode will change the mode to ANI Review Mode. In

this mode, the ANI is shown first on the first line followed by the timestamp. The second line shows the alias of

the decoded ANI, if programmed.

When ANI Review Mode is brought up the last incoming ANI is shown first. Pressing the FREQ scrolls the log to

the next most recent ANI in the log. Pressing INTER scrolls the log to the newer entries in the ANI log. When

there are additional older ANI’s to be displayed then the < icon is shown to the left. When there are additional

newer ANI’s to be displayed then the > icon is shown to the right.

If the status feature is enabled and a status is received with the ANI, then the ANI will alternate every 2 seconds

between the ANI and the status message.

To return to the Control Mode press FREQ and INTER simultaneously or press the CLR # key.

Call Mode:

To enter call mode press the MENU key and CALL will be displayed on the LCD. Press the SEND key to select

the CALL function.

Direct Dialing: Once in the call mode as above, simply press the numeric keys of the desired dialing sequence

and press SEND.

Database Dialing: Once in the call mode as above, simply press the INTER key to scroll right through the

database until the desired ID is found. Once found, press the SEND key. If while scrolling the desired ID is

passed by, press the FREQ key to scroll left.

1234 12:00

< John Smith >

Speed Dialing: Speed dialing can be done in the Control Mode or ANI Review Mode. The speed dials (or

memory dials) are set up in the Menu Mode of this manual. The TRC can have 9 speed dial memory locations set

up in memory, which are associated with the 1-9 keys. Press and release the * key and the press and hold the

desired 1-9 key for 1 second and the unit will automatically dial the associated speed dial.

Menu Mode:

For details on the Menu Mode please reference the Product Programming section.

PRODUCT PROGRAMMING

The following is a map of the menu system in the TRC. Menu shortcut numbers are shown to the right of the

menu item to which it applies.

MAIN MENU

ACTIONS <1>

Spy

Kill

Clear ANI Log

CALL <0>

LOCK/UNLOCK

USERS

SETUP

TIME SETUP <2>

Hour

Minute

dd Use

Edit User

Delete User

SPEED DIAL SET <3>

Speed Dial

Speed Dial 1

Speed Dial 2

Speed Dial 3

Speed Dial 4

Speed Dial 5

Speed Dial 6

Speed Dial 7

Speed Dial 8

Speed Dial 9

SOUNDS SETUP <4>

Keypad Beep

Beep On ANI

Emerg Siren

Go-ahead Beep

Cross Mute

uto Mute Time

CONSOLE SETUP <5>

Data Entry Mode

Func Display

Ignore Nonuser

Fast Scrolling

Contrast

Timeout Timer

Microphone

Off-hook Mon

Line 2/Sup Opt

Printer Option

SECURITY SETUP <6>

Security

Password

TONES SETUP <7>

F10-F19 Entry

Tone Timing

Freq/Func Tone

Hi Level Guard

Monitor Tone

Guard Tone

Monitor Tone

Freq/Func Tones

Freq/Func Number

Frequency

When To Send

Label

ENCODE SETUP <8>

Encode Format

Encode Time 1

Encode Time 2

Key-up Delay

Hang Time

UTILITIES <9>

Generate LLGT

Gen Test Tone

Notch Adjust

Reset Defaults

Clear Database

Factory Debug

Navigating the Menus

Press the key MENU key while in Control or ANI Review Mode to place the unit into Menu Mode. Upon entry to

Menu Mode, you will be in the Main Menu. The top line of the display indicates this. The bottom line displays an

item available for selection. When MENU is first selected the first available selection is for the CALL command.

The FREQ and INTER keys become scroll keys just as they do in ANI Review Mode. The scroll right symbol on

the right side of the display indicates that additional items are available. Press the INTER (SCROLL >) key to view

the next available item. The scroll left symbol will then appear, indicating that the FREQ (SCROLL <) key may be

used to go back to the previous item.

To select the displayed item, press the SEND key (the SEND key is the ENTER key in menu mode). Upon

selection, the name of the item will appear on the top line of the display. The bottom line will present additional

items for selection. Press the CLR key to return to the previous selection.

When in menu mode, the number keys become menu shortcut keys which allow you to quickly jump to certain

menus without scrolling. For example, pressing MENU followed by a <5> jumps directly to the Console Setup

menu. One exception to this is the 0 key, which jumps directly to the call mode without having to press MENU.

The other shortcut keys require the MENU key be pressed first if not already in Menu Mode.

Numeric VS. Alphanumeric Data

There are two different data entry modes available on the TRC. Numeric entry is the default mode when calling a

unit. As numbers are entered, they appear on the bottom-left of the display. Pressing the MENU key while in

numeric entry mode changes the mode to Alphanumeric. In alphanumeric mode, you may type in letters and

numbers as shown in the table below. This allows you to type the name of a user in the database without having

to scroll through the names. Alphanumeric data appears on the bottom line of the display as it is entered. You

may make alphanumeric call entry the default mode by changing the Data Entry Mode setting in the CONSOLE

SETUP menu.

Entering Alphanumeric Data

Before you can add names to the database, you must learn the scheme for entering alphabetic characters using

the numeric keypad. All of the letters of the alphabet appear above the numbers on the keypad. For example, the

letters ‘A’ ‘B’ and ‘C’ appear on the <2> key.

Alphabetic characters are entered by pressing 2 digits. The first digit is the key with the desired letter appearing

on it. The 2nd digit is the position of the letter on that key. For example, the code for the letter ‘C’ is 23 since it is

the 3rd letter on the <2> key. The letter ‘T’ is the 1st letter on the <8> key, so its code is 81.

To enter numeric characters in alphanumeric data entry mode, press the <0> key followed by the desired digit.

Punctuation characters such as comma <,> and <-> do not appear on the keypad. Special codes have been

assigned to allow entry of those characters. Please refer to the following chart.

Note: Alphanumeric mode cannot be used to enter user ID's (ANI's). In alphanumeric mode, numbers are treated

the same as letters

A=21 I=43 Q=72 Y=93 7=07 - =15

B=22 J=51 R=73 Z=94 8=08 = =16

C=23 K=52 S=74 1=01 9=09 * =17

D=31 L=53 T=81 2=02 0=00 / =18

E=32 M=61 U=82 3=03 , =11 # =19

F=33 N=62 V=83 4=04 . =12 space=10

G=41 O=63 W=91 5=05 _=13

H=42 P=71 X=92 6=06 +=14

Entering Special DTMF Digits: The TRC supports the following special DTMF 'digits' in numeric entry mode: *,

#, A, B, and C (D is not supported). These are entered using 2-key sequences as follows:

* = * * # = * # A = * 1 B = * 2 C = * 3

These special digits can only be entered when adding a User ID to the database. They cannot be dialed directly

from the CALL menu. These special digits cannot be used unless DTMF is used as the encode format.

The following sections describe the various functions of the menu system. Shortcut keys are shown for those

menu items that have shortcuts. Factory default settings are shown underlined.

CALL <0>

When the call command is selected you will be prompted to enter a user ID. You can either enter a unit ID or

scroll right to enter into the database. The database will show the user ID, if you wish to display the user name

press the MENU key to switch between the user ID and the user name. Once the desired user is found press

SEND to call the unit.

LOCK/UNLOCK

Note: The Lock and Unlock menu options do not appear unless enabled in security setup. If enabled the

password protects all options in the menu map after the call option. Enter the 4-digit password that was set up in

the security setup to unlock the menu.

ACTIONS <1>

Spy command: Allows you to remotely key-up and listen to a unit equipped with one of Midian’s UD-1/UED-1

series encoder/decoders. The code for spying on a unit must be in the user database to use this function.

Type in the user ID or scroll to the desired ID or name in the database and press the SEND key.

Kill command: Allows you to remotely disable a unit equipped with Midian’s UED-1 series encoder/decoder.

The code for killing a unit must be in the user database to use this function. Type in the user ID or scroll to the

desired ID or name in the database and press the SEND key.

Clear ANI Log command: Allows you to clear the ANI log without having to turn the unit off and back on.

USERS menu

Add User menu: Allows you to add a new user to the database. When ADD USER is selected, you will be

prompted to fill in the information for that user such as User ID and User Name followed by a Kill ID and a Spy

ID.

Delete User menu: Allows you to delete a user record from the database. When DELETE USER is selected,

you will be able to select the user you wish to delete in the same manner as if placing a CALL. Use the scroll

keys to find the user you wish to delete. Press SEND to delete the selected user. You will have to press

SEND a second time to confirm. Press CLR to cancel.

EDIT USER menu: Allows you to change information about a user. Select the user you wish to edit in the

same manner is if placing a CALL to that user. Use the scroll buttons to find the user you wish to edit. Press

SEND to edit the information for the selected user. You will be prompted to fill out each field in turn. After

entering the data for a field, press SEND to go on to the next field. To leave a field unchanged, simply press

SEND without entering data. If not using the Spy or Kill features, just leave these fields blank and press

SEND.

User ID: This numeric field contains the ANI assigned to the user’s radio. This will be the number used when

decoding the ANI. ID’s are 4 digits in length. This is a required field.

Range: 0-4 digits

Default: blank

User Name: This alphanumeric field contains the name of the user associated with the user ID. A maximum

of 14 characters may be used.

Range: 0-14 characters

Default: blank

Spy ID: Specify the code required to spy on this unit. Leave blank if not using this feature.

Range: 0-8 digits

Default: blank

Kill ID: Specify the code required to disable this unit. Leave blank if not using this feature.

Range: 0-8 digits

Default: blank

SETUP menu

TIME SETUP <2>

In order for the correct time to be displayed, the real-time clock must be set. Time is represented in 24-hour

format and all four digits must be entered.

Range: 0000-2359

Default: 0000

SPEED DIAL SET <3>

Speed Dial feature: When in Control Mode or ANI Review mode, the number keys <1> through <9> may be

turned into speed dial keys by enabling this feature.

OFF Speed dialing disabled.

ON Speed dialing enabled.

Speed Dial 1-9: To associate a unit to a speed dial number, it must be in the user database. For each speed

dial entry, simply locate the user in the database in the same manner as if placing a call to a unit.

Range: 0-14 characters

Default: blank

SOUNDS SETUP <4>

Keypad Beep: Turning this option on causes a beep to be heard for each key press.

OFF Keypad beeps off

ON Keypad beeps on

Beep On ANI: Turning this option on will cause an alert beep to be heard every time a new ANI is received.

OFF Do not beep when ANI comes in.

ON Beep when ANI comes in.

Emerg Siren: This causes a siren sound to be heard when an emergency ANI is received. This requires

turning on the Emerg Status option in the STATUS SETUP.

OFF Do not sound siren on emergency ANI.

ON Sound siren on all emergency ANI’s.

Go-ahead Beep: When using the TRC as an encoder, it will take some time for the signaling to take place.

The operator must wait for this time to elapse before speaking or he/she will not be heard. The go-ahead

beep alerts the operator when the signaling is complete so they will know when it is okay to begin speaking.

OFF Disable go-ahead beep.

ON Enable go-ahead beep.

Cross Mute: If using more than one TRC in the same room, feedback (howling) may occur if one unit is

transmitting while another is listening. Enabling Cross Mute prevents this from happening by muting the

internal speaker whenever guard tone is detected.

OFF Cross Mute disabled.

ON Cross Mute enabled.

Auto Mute time: Specifies the amount of time after guard tone is detected that the internal speaker will be

muted. This facilitates muting of the function tone and/or signaling tones generated by parallel remotes. All

four digits must be entered. If 0000 is entered, the feature is disabled.

Range: 0000 to 9999 milliseconds

Default: 0000 milliseconds

CONSOLE SETUP menu <5>

Data Entry Mode: Determines if numeric entry or alphanumeric data entry is the default mode when placing a

call. The mode of entry can also be toggled by pressing the MENU key during data entry. Enable

alphanumeric mode only after entering names and numbers in the user database.

NUMERIC Start in numeric only mode.

ALPHA Start entry in alphanumeric mode.

Func Display: Turning on this option causes the last selected function to be displayed every 2 seconds on

the bottom line of the display when in Control Mode. This option applies only when there is a distinction

between frequency and function in your application.

OFF Disable function display.

ON Enable function display.

Ignore Nonuser: Turning on this option helps prevent the display of false decodes by ignoring ID’s which do

not appear in the user database.

OFF Display ID’s not in database.

ON Ignore ID’s not in database.

Fast Scrolling: Fast Scrolling allows for faster navigation through the menu system. When this setting is

turned off, menu items will appear to scroll from side-to-side. This provides positive feedback in response to

scrolling through menus and the ANI log. If this effect is desired, Fast Scrolling can be disabled.

OFF Scroll slowly to give side-to-side effect.

ON Scroll at fast speed.

Contrast : Allows the display contrast to be adjusted for best viewing.

LOW Low contrast setting.

HIGH High contrast setting.

Timeout Timer: Prevents the transmitter from being keyed indefinitely if the SEND key is stuck or

unintentionally in the depressed position. The TRC will cease sending low-level guard tone and disable the

line driver after the amount of time programmed by this setting. This timer also applies to the INTER key. If set

to 00, the timeout timer feature will be disabled. Both digits must be entered.

Range: 00 to 99 seconds

Default: 00 seconds

Microphone: Selects which type of microphone is attached to the TRC. Be sure to set jumpers accordingly.

INT/GOOSENECK Internal or gooseneck style microphone.

HANDSET External handset.

Off-hook Mon: If enabled, the TRC will automatically transmit the Monitor Function sequence as per FCC

requirements when the operator picks up an externally attached handset. For privately owned systems this

option can be disabled. The External Handset Option must be enabled for this setting to be recognized.

OFF Do not transmit the monitor sequence when the handset goes off-hook.

ON Automatically transmit the monitor sequence when the handset goes off-hook.

Line 2/Sup Opt: If the line-2/supervisor relay is installed, this setting must be enabled for the feature to work.

OFF Line 2 or supervisor option disabled.

ON Line 2 or supervisor option enabled.

Printer Option: The TRC, if ordered with the printer cable option, can log the ANI traffic to a serial printer or

computer. The printer must have a print buffer and a standard RS-232 port. It must be configured for 9600

baud, 8 data bits, 1 stop bit and no parity. In order to send data to the printer, this option must be on.

OFF Do not send data to printer.

ON Send data to printer.

SECURITY SETUP menu <6>

Security: Allows the security option to be turned on and off. If off, the Lock/Unlock menus will not appear.

OFF Disable security feature.

ON Enable security feature.

Password: Sets the password used to unlock the menu system when the security is enabled. Must be 4

numeric digits.

Range: 4 digits

Default: 0000

TONES SETUP menu <7>:

F10-F19 Entry: By default, the TRC will expect one digit to be pressed after the FREQ key is pressed. This

however prevents the use of F10 – F19 function tones. If these tones are to be used, turn on this setting. This

will cause the TRC to wait 2 seconds after FREQ <1> is pressed for the 2nd digit. If no 2nd digit is entered after

2 seconds (or SEND is pressed), F1 will be selected.

OFF Disable F10 – F19 entry.

ON Enable F10 – F19 entry.

Tone Timing: This menu allows the modification of the default timing of the frequency/function tones, the high

level guard tone, and the monitor tone. Any of these tone types may be disabled by setting the timing to 0000.

All four digits must be entered.

Freq/Func Tone

Range: 0000 to 9999 milliseconds

Default: 0040 milliseconds

Hi Level Guard

Range: 0000 to 9999 milliseconds

Default: 0120 milliseconds

Monitor Tone

Range: 0000 to 9999 milliseconds

Default: 0040 milliseconds

Guard Tone: This changes the guard tone frequency. All four digits must be entered.

Range: 2100 to 3100 Hz

Default: 2175

Monitor Tone: This changes the guard tone frequency. All four digits must be entered.

Range: 0550 to 3100 Hz

Default: 2050

FreqFunc Tones: This allows editing the attributes for each of the frequency/function tones F1 – F19. There

are three attributes of each tone that you can change. The defaults for each tone are shown in the table

below.

Freq/Func Number: Select the Freq/Func tone number whose attributes you with to edit using the

SCROLL buttons. When the desired tone number is displayed, press SEND. You will then be prompted to

modify or accept each of the three attributes associated with that tone. To leave an attribute unchanged,

simply press SEND to accept the value. All three attributes must be modified or accepted for the changes

to take effect.

Frequency setting: This allows you to pick a custom frequency for each tone. Note that all four digits

must be entered.

Range: 0550 to 3100 Hz

Default: see below

When to Send setting: Select when the frequency/function tone is sent. The options are as follows:

AFTER SEND: The tone will be sent after high level guard tone every time the SEND key is pressed

and ONLY after the SEND key is pressed. Therefore this setting is applicable only when the tone is

used only for TX frequency control.

AFTER FREQ: The selected tone will be sent (preceded by high level guard tone) immediately after

being selected by pressing FREQ followed by the tone number. The tone to be sent after pressing

SEND will not be changed. This is the setting to select when the tone is used for function control only.

It will be classified as a function when function display is turned on. This could also be used for RX

frequency control (if different from TX).

BOTH: The selected tone will be sent (preceded by high level guard tone) immediately after being

selected by pressing FREQ followed by the tone number. This tone will also be sent the next time

SEND is pressed. This is the setting to select when the tone is used for both RX and TX frequency

control (most common). A tone with this setting will be treated as a frequency as opposed to a

function.

Label setting: Allows you to label the frequency/function tone to clarify how it is being used. The

programmed label will appear when in Control Mode.

Range: 0-8 characters

Default: see below

Freq/Func Defaults: The following are the default attributes for the frequency/function tones when

shipped from the factory:

Tone Frequency When to Send Label

F1 1950 BOTH CHAN 1

F2 1850 BOTH CHAN 2

F3 1750 BOTH CHAN 3

F4 1650 BOTH CHAN 4

F5 1550 AFTER FREQ FUNC 5

F6 1450 AFTER FREQ FUNC 6

F7 1350 AFTER FREQ FUNC 7

F8 1250 AFTER FREQ FUNC 8

F9 1150 AFTER FREQ FUNC 9

F10 1050 AFTER FREQ FUNC 10

F11 950 AFTER FREQ FUNC 11

F12 850 AFTER FREQ FUNC 12

F13 750 AFTER FREQ FUNC 13

F14 650 AFTER FREQ FUNC 14

F15 550 AFTER FREQ FUNC 15

F16 2350 AFTER FREQ FUNC 16

F17 2450 AFTER FREQ FUNC 17

F18 2550 AFTER FREQ FUNC 18

F19 2650 AFTER FREQ FUNC 19

Note: F16 through F19 do not have standardized tone definitions.

ENCODE SETUP menu <8>

Encode Format: The tone-signaling format used to encode outgoing calls. Please note that a number of the

formats employ tones that should not be used unless a non-standard guard tone is used by the system. Please

refer to the Tone Signaling section for signaling format compatibility.

Encode Time 1: When using 2-tone or 5-tone, this sets the length of time for the first tone of the sequence. When

using DTMF, this is the tone ON time for DTMF tones.

Range: 0005 to 9999 milliseconds

Default: 0050 milliseconds

Encode Time 2: When using 2-tone or 5-tone, this sets the duration of each of the remaining tones of the

sequence. When using DTMF, this is the tone OFF time (between digits).

Range: 0005 to 9999 milliseconds

Default: 0050 milliseconds

Key-Up Delay: This is the amount of time the TRC will wait after sending guard and function tone before sending

the encode sequence over the air. This time allows for delays introduced by repeaters and decoding of squelch

control signals such as CTCSS.

Range: 0005 to 9999 milliseconds

Default: 0100 milliseconds

Hang Time: Low-level guard tone will continue to be sent for this much time after encoding is completed. This

gives the operator time to say a brief voice message, or to press SEND before the guard tone drops. Hang time

does not apply when unless making a encoding.

Range: 0000 to 9990 milliseconds

Default: 0000 milliseconds

UTILITIES menu <9>

Generate LLGT: Causes the TRC to generate low-level guard tone continuously until told to quit. This utility

may be also be used to adjust the TX audio level. Press CLR to stop tone generation when done.

Gen Test Tone: Causes the TRC to generate high level guard tone followed by a function tone. After that, a

1007 Hz test tone along with low-level guard tone will be generated for 10 seconds. This is useful for the

measurement of signaling modulation.

Notch Adjust: Causes the TRC to generate a test tone at the guard tone frequency continuously until told to

quit. The speaker is enabled while generating so that the RX notch filter may be adjusted. This utility may be

also be used to adjust the TX notch filter. Press CLR to stop tone generation when done.

Reset Defaults: This will reset all the parameters listed above to the factory default settings. The contents of

the user database will not be affected.

Clear Database: This will clear the user database of all ID's and User Names. The contents of the other

parameters listed above will not be affected.

Factory Debug: This is used by the factory for product testing. Select this function only if directed to do so by

Midian Technical Support.

TONE SIGNALING FORMATS

Tone Encoding Tables

Entering a user ID number, often called a CAP code, is straightforward for most of the encoding formats

supported by the TRC. For example, when encoding DTMF or 5-tone, the digits 0-9 are simply typed in directly.

Some formats do not allow for this straightforward approach. These are Plectron, Quick Call I, and Avcall. This

section explains how to enter a code in these formats.

Plectron Encoding: To encode Plectron, four digits must be used. The first two digits represent the 1st tone, and

the 2nd two digits represent the 2nd tone. Simply locate the code associated with each tone from the table. For

example, the tone sequence 454.6 + 2688 would be entered as 1253.

Plectron Tones

01 282.2 08 382.2 15 517.7 22 701 29 950 36 1287 43 1743 50 2361 57 3197

02 294.7 09 399.2 16 540.7 23 732 30 992 37 1344 44 1820 51 2465 58 3339

03 307.8 10 416.9 17 564.6 24 765 31 1036 38 1403 45 1901 52 2574 59 3487

04 321.4 11 435.3 18 589.7 25 799 32 1082 39 1465 46 1985 53 2688

05 335.6 12 454.6 19 615.8 26 834 33 1130 40 1530 47 2073 54 2808

06 350.5 13 474.8 20 643 27 871 34 1180 41 1598 48 2165 55 2932

07 366.0 14 495.8 21 672 28 910 35 1232 42 1669 49 2260 56 3062

Avcall & Motorola Quick Call 1 Encoding: Avcall and Quick Call 1 are dual-tone formats, which means a pair of

tones are sent simultaneously. Two tone-pairs are sent, meaning that four tones in total must be selected. Like

Plectron, above, two digits are entered for each tone. Locate the desired tone in the table to find its corresponding

code. A total of 8 digits must be entered. For example, the tone sequence 645.7 & 312.6 + 881.0 & 1479.1 would

be entered as 07001015.

Avcall & Motorola Quick Call 1 Tones

00 312.6 07 645.7 14 1333.5 21 668.3 28 412.1 35 851.1 42 473.2 49 346.7

01 346.7 08 716.1 15 1479.1 22 741.3 29 457.1 36 944.1 43 524.8 50 977.2

02 384.6 09 794.3 16 398.1 23 822.2 30 507.0 37 371.5 44 582.1 51 1084.0

03 426.6 10 881.0 17 441.6 24 912.0 31 562.3 38 1047.1 45 645.7

04 473.2 11 977.2 18 489.8 25 358.9 32 623.7 39 1161.4 46 716.7

05 524.8 12 1083.9 19 543.3 26 1011.6 33 691.8 40 384.6 47 794.3

06 582.1 13 1202.3 20 602.6 27 1122.1 34 767.4 41 426.6 48 881.0

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 signaling tones close to 2175 Hz. Tones within

+/-70 Hz could be attenuated to a level such that they cannot be decoded by receiving equipment. There are

several ways to deal with this issue:

1. Choose a format that will not be affected.

2. Do not use the affected tone(s).

3. Change the guard tone.

The last solution involves re-tuning the notch filters on the TRC. This can be done at the factory upon request

(recommended). It also requires that the guard tone and notch filters on the tone remote adapter be changed as

well. While Midian’s products allow for this, not all do. Please note that this issue often applies to decoding as

well. Many tone remote adapters notch 2175 out of the receive audio as well. This possibility should be

investigated if decode problems are experienced. The following sections address the formats and tones that are

likely to be affected.

ZVEI: All ZVEI formats use 2200 Hz for either the ‘0’ or the ‘9’ tone. This is only 25 Hz away from the standard

guard tone frequency of 2175. The best solution to this problem is to simply not use the ‘0’ tone when encoding

DZVEI and not use the ‘9’ tone when encoding ZVEI or DDZVEI formats. Alternatively, the guard tone could be

changed to another frequency. If this is done, it should be at least 150 Hz away from the nearest frequency used

by the format. 2970 Hz is a common choice.

CCIR and EEA: CCIR and EEA both use the tone 2110 Hz as the ‘repeat’ tone. This tone indicates that the

current digit is the same number as the last digit. The best solution to this problem is to simply not use codes that

have repeating digits. That is to say, do not use a code where a digit appears next to itself in the code such as

‘12334’ which has two 3’s in a row. Another solution is to change the guard tone. If this is done, it should be at

least 150 Hz away from the nearest frequency used by the format. 2970 Hz is a common choice.

Other Affected Formats: REACH two-tone, tone group A, uses 2274, 2196, and 2121 Hz to represent the digits

6, 7, and 8. Do not use tone group A if using this format. PLECTRON tones 2260 and 2164 should not be used.

Formats Not Affected: The following formats do not use tones between 2105 and 2245 and therefore should be

unaffected by the guard tone filter: AVCALL, DTMF, EIA, EUROSIGNAL, GE, MODAT, NATEL, QUICK CALL I,

and QUICK CALL II.

SYSTEM ERROR MESSAGES

DATABASE EMPTY

Reason: An attempt was made to edit or delete a user when the database was empty.

Solution: These functions do not apply when the database is empty.

DATABASE FULL

Reason: An attempt was made to add a user to the database and there is no more room. The maximum number

of user aliases of 128 cannot be exceeded.

Solution: Remove any old user names that are no longer in service. If this is not possible, contact Midian to learn

about our Computer Aided Dispatch (CAD) fleet management systems which can handle many more users.

DATABASE ERROR

Reason: One or more entries in the user database has been corrupted. This can happen if power is lost at the

exact time the database is being updated. Any corrupted records will be blanked-out and must be re-entered.

Solution: Cycle power to the unit. This should clear the error. If the error message continues to come up, contact

Midian technical support.

DUPLICATE ID

Reason: An attempt was made to add a user ID to the database which is already in the database. Each user ID in

the database must be unique.

Solution: Choose a unique user ID for each user. If it is necessary to edit the user record, use the edit menu.

EE CHKSUM ERR

Reason: The configuration settings stored in EEPROM have been corrupted. This can happen if power is lost at

the exact time a parameter is being updated. All configuration settings will be set back to defaults. The user

database should not be affected.

Solution: Cycle power to the unit. This should clear the error. If the error message continues to come up, contact

Midian technical support.

EE WRITE FAIL

Reason: The EEPROM chip or connections to it have failed.

Solution: Contact Midian for instructions on getting the unit repaired.

FIELD IS BLANK

Reason: An attempt was made to place a call, but the user ID or name was blank. An attempt was made to spy

or kill and the respective field in the database is blank.

Solution: When placing a call, be sure an ID number or user name is displayed before pressing SEND. The spy

and kill functions require there be an entry in the respective field of the user database.

COPRO TIMEOUT

Reason: This message indicates that the coprocessor is not responding to commands from the main processor.

Generally, this message should never be seen.

Solution: If this message is displayed, press the CLR key several times, three seconds apart, until the unit

returns to normal. If it does not, try turning the power off and back on again. If this message continues to be

displayed, or is displayed frequently, contact Midian technical support.

NOT FOUND

Reason: There is no entry in the user database that matches the data entered.

Solution: When selecting a user to call, the name or the ID can be entered in whole or in part. When entering a

partial name or ID, press the right SCROLL button to search the database for the first partial match. Press SEND

only if the whole ID or name has been entered. There may be no entry in the database that matches in whole or in

part. In that case, the user must be added to the database.

SPEED DIAL EMPTY

Reason: You have pressed a speed dial number, but there is no user associated with it. The user may have been

deleted, or no association was ever made.

Solution: Go to speed dial setup and associate a user in the database to the speed dial number.

THEORY OF OPERATION

Initial Power-up: Upon power-up the TRC defaults to Frequency 1 when the [SEND] button is pressed.

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. This signal is fed into a transient absorber across the

line, then through an auto-resettable polyswitch fuse to another set of transorbs that can shunt a signal to ground

if the ground lead is tied to Earth. There are then 2 capacitors across the line, which also go to Earth to remove

RF. The audio signal is then fed into transformer T201 through jumpers JP202 and JP203 or Line 2 relay K201.

From the bottom winding of T201 audio is fed to jumper JP204 contacts 1 and 2 or contacts 2 and 3 if using T202

in a 4-wire duplex configuration. From JP204 audio is fed into the RX Input Gain Pot RP-306 where the output

level of the RX line amp U302 is typically set to 200 mV p-p with –20 dbm from a Line Test Set tone generator.

There is a disable transistor Q303 that can mute the incoming audio under microprocessor control. Coming out of

the RX line amp the audio is passed to the compression circuit U102B. The audio output of the compressor is

also about 165 mV p-p and will change no more than 3 db over a 30-35 db input change. The audio then goes

into the RX Bandpass amplifier U301D and the output of this Bandpass is fed into the Guard Tone detector which

turns on the busy light and depending on how the unit is programmed can activate the crossmute function when

another unit in the same room is transmitting to prevent howling and feedback. The output of the Bandpass is also

fed over to the RX notch filter U301C through a nulling pot. When the Bandpass filter has been tuned to the

appropriate frequency for the desired Guard Tone (usually 2175 Hz) its output is fed through the nulling pot and

R303 and R346 where it mixes with audio from R324 coming from the compressor. These two signals cancel at

the summing input of Notch filter U301C thus removing the continuous Guard Tone audio leaving only the

resulting voice and dialing audio to be transmitted through the volume control SR601B to the speaker amplifier.

Keypad beeps are also input on this same pot to be heard out the speaker. When the handset is taken off-hook,

the magnetic reed switch located inside of the handset opens it’s contact which signals the microprocessor to

activate transistor Q302. Activating transistor Q302 mutes the speaker amplifier. Audio from U301C is fed into

ear level RP304 which drives the earpiece driver Q303B to drive the handset earpiece. There is also an ear mute

transistor Q304 that allows the microprocessor to mute the earphone. There is also a jumper JP302 that feeds

handset mic audio back into the earpiece for sidetone. This jumper should not be used in 4-line duplex mode.

There is another jumper JP201 that feeds DTMF and paging and dialing tones into the RX audio path so that they

can be heard during the dialing time.

TX Audio Output Path: Mic bias is developed with R100, R134 and R101. This provides mic bias to either the

internal mic, or gooseneck mic. These are all electret type mics. When using the internal mic or gooseneck mic,

Q306 switches audio into the mic amp U101A where the gain is set by RP101. Q101 on the input of the mic amp

kills mic audio during the High-Level function tones and dialing times. Coming out of the mic amp the audio level

is approximately 200 mv peak to peak where it is fed into the compressor U102A. The audio out of it is also about

200 mv peak to peak and will change no more than 3 db over a 30-35 db input change. It is then fed into notch

filter U103C and U103D. This notch filter is usually set to the standard Guard Tone of 2175 Hz and is designed to

remove 2175 Hz components from the voice so that they do not mix with the 2175 tone generator and cause

phase cancellation and thus momentary breaks in the Low-Level Guard Tone. The notch filter feeds into the audio

mixer along with the signaling and dialing tones from the digital to analog converter. The tones and voice out of

the audio mixer are presented to the TX line level pot RP202 and then to the line amplifier U201A. U201A then

feeds the top winding of T201. When the line level pot RP202 is set all the way to maximum it is sufficient to drive

a single phone line with up to 8 additional tone remotes to about +10 db on the high level guard tone.

The regulator has an input from a wall charger of around 16-20 volts which is passed through a auto-resettable

polyswitch F601 into transient absorber TZ601, then through the volume control on/off switch SR601A to an RF

bypass cap C602, across several filter caps into the input of the 13.4 volt regulator. D601 is a reverse polarity

diode that will blow the auto-resettable polyswitch if the power is reversed. Powering off for one to two seconds

will reset the polyswitch. The output of the 13.4 volt regulator is fed to all of the analog circuitry on the analog

schematic page. U303A has a voltage divider R373 and R374 that creates the analog pseudo ground reference to

all of the op amps on the analog schematic page.

Digital Circuit

There are three microprocessors on the digital schematic page. U402 controls the keypad interface and also talks

to the LCD. In addition it generates the keyboard beeps to the speaker amp, it controls the speaker mute when

the handset is taken off-hook. Additionally, it controls the 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. These

tones are fed into U405 the DAC output over to the analog page. U401 also controls PTT disable, PTT mic enable

and ear mute. Both of these microprocessors get their voltage from 5-volt regulator U601.

Microprocessor U403 controls the printer option U404 and decodes the high and low level guard tone, as well as

the function tones.

Microprocessor U407 is the real time clock chip with battery back-up.

U504 and U507 are the PSK decoder chips for G-Star.

TECHNICAL NOTES

No technical notes are available at this time.

MIDIAN CONTACT INFORMATION

MIDIAN ELECTRONICS, INC.

2302 East 22nd Street

Tucson, Arizona 85713 USA

Toll-Free: 1-800-MIDIANS

Main: 520-884-7981

E-mail: sales@midians.com

Web: www.midians.com

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PTT_DISABLE

PTT_MIC_ENABLE

DAC_OUT

KEYPAD_BEEP

OFFHOOK_SPKR_MUTE

RESET

EAR_MUTE

CLK_B

MIC_AUD_SELECT

PTT_LINE_AMP_ENABLE

LINE_2/SUPERVISOR

CLK_A

CLK_B

FFSK

RESET

PTT_LINE_AMP_ENABLE

LLG_TONE

FNC_TONE

INTEROP_XOVER

RXD2

TXD2

HLG_DET

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-MCU

G-1

TRC SERIES

1 2

TRC-500

MCU

CJS

AWS

NOV. 16, 2004

07/06/2008

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-MCU

G-1

TRC SERIES

1 2

TRC-500

MCU

CJS

AWS

NOV. 16, 2004

07/06/2008

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-MCU

G-1

TRC SERIES

1 2

TRC-500

MCU

CJS

AWS

NOV. 16, 2004

07/06/2008

OPTION 100

OPTION 200

DTMF

5 TONE

OPTION 600 - FLEETSYNC FORMAT

OPTION 300 - ZAP FORMAT

OPTION 400 - GSTAR FORMAT

ROW 1

ROW 2

ROW 3

ROW 4

COL 4

COL 3

COL 2

COL 1

BUSY LED

SEND LED

SPARES

SPARE

LCD INTERFACE OPTION

NOTE2

KEYPAD INTERFACE

DB5

DB6

DB7

DB4

ENA

R/W

CTR

2.3 VOLTS

DIGITAL REFERENCE

PRINTER

OPTION

CAD

OPTION 500 - MDC FORMAT

L2/SUPER LED

FOR NOTE INFORMATION, PLEASE SEE ANALOG PAGE.

NOTE5

1.3W

U503C

LM324

U503C

LM324

C429

.1u

C429

.1u

R437

R515

10K

R515

10K

R452

NOTE4

R452

NOTE4

U407

DS1390

U407

DS1390

VBkup

CS 4

GND

DIN 6

DOUT 7

SCLK 8

SQW/INT 9

VCC 10

C532

.1u

C532

.1u

C501

.022u

C501

.022u

R436

R511

100K

R511

100K

TP501TP501

R513

200K

R513

200K

R411

20K

R411

20K

R522

15K

R522

15K

R530

100K

R530

100K

C411

100p

C411

100p

C401

22p

C401

22p

U504D

LM324

U504D

LM324

D501A

1 2

P2P2

C427

22p

C427

22p

U401

68705C9AFN

U401

68705C9AFN

OSC2 42

TCMP

VDD 44

VPP 4

SS 37

B3 16

OSC1 43

B0 13

B1 14

A7 5

A2 10

A0 12

C5 26

C3 28

C0 31

B4 17

B7 21

B6 20

GND

RES 1

B2 15

TCAP

IRQ

B5 19

SCK 36

MOSI 35

MISO 34

RDI 32

TDO 33

NC1

NC2 18

NC3

NC4

U601

LP2954IM

U601

LP2954IM

RESET 5

OUT1 1

OUT2 2

GND

IN1

IN2

IC1 6

IC2

R410

10K

R410

10K

TP602TP602

R403

200K

R403

200K

R509

200K

R509

200K

C405

22p

C405

22p

C528

2.2u

C528

2.2u

R434

10K

R434

10K

C513

.01u

C513

.01u C406

22p

C406

22p

C402

12p

C402

12p

PL4

RJ-11

PL4

RJ-11

BT1

BR20321VB

BT1

BR20321VB

RP502

100K

RP502

100K

R525

27K

R525

27K

R505

D501B

R425

100K

R425

100K

R535

RP503

100K

RP503

100K

R516

7.5K

R516

7.5K

R523

240K

R523

240K

R432

47K

R432

47K

R439

330K

R439

330K

R416

10K

R416

10K

U507

74HC4046

U507

74HC4046

VCC 16

PCAin 14

C1A 6

C1B 7

INH 5

GND 8

PC1out 2

VCOin 9

VCOout

PCBin

PCPout 1

SFout 10

PC2out 13

ZEN 15

C422

.1u

C422

.1u

C514

.001u

C514

.001u

R417

20K

R417

20K

C414

100p

C414

100p

C510

.001u

C510

.001u

R517

10K

R517

10K

R457

47K

R457

47K

R524

470K

R524

470K

P4P4

U405

A11

U405

A11

2 5

D401A

R407

10K

R407

10K

U502

8870

U502

8870

OSC1 8

OSC2 9

IN-

St/GT

ESt

IN+

VREF

VCC 20

PWDN

INH

GND

STD 17

Q1 12

Q2 13

Q3 14

Q4 15

TOE 11

NC1

NC2

U406

PIC16F716

U406

PIC16F716

OSC1 18

OSC2 17

SCLK/A4

MOSI/A1

MCLR 4

VDD 15

VDD 16

VSS

B6 13

14 B1 8

B2 9

B3 10

B4 11

MISO/A3

R453

U508

CMX469AD3

U508

CMX469AD3

RX_DATA 12

CD 13

RX_SYNC 15

TX_DATA_IN 5

VCC 20

CLK_RATE 18

RX_IN

XTAL

TX_OUT 4

4800 17

TX_ENA 6

1200/2400 16

CDRC

VBIAS

VSS

TX_SYNC 3

NC2

NC3

NC4

C506

.01u

C506

.01u

U602

LP2954IM

U602

LP2954IM

RESET 5

OUT1 1

OUT2 2

GND

IN1

IN2

IC1 6

IC2

R514

C531

.1u

C531

.1u

JP409

R422

10K

R422

10K

U506B

4520

U506B

4520

VCC 16

EN 10

CLR 15

GND

14 Q2 13

CLK

Y401

3.58M

Y401

3.58M

R405

10K

R405

10K

R423

20K

R423

20K

C610

.1u

C610

.1u

TP603TP603

TP504TP504

R518

7.5K

R518

7.5K

U504A

LM324

U504A

LM324

411

C409

.01u

C409

.01u

C431

.1u

C431

.1u

R440

4.7K

R440

4.7K

R429

47K

R429

47K

C421

.1u

C421

.1u

R533

10K

R533

10K

R426

100K

R426

100K

R529

U505B

4070

U505B

4070

R424

20K

R424

20K

C420

.1u

C420

.1u

U504C

LM324

U504C

LM324

R409

20K

R409

20K

R512

39K

R512

39K

C428

.1u

C428

.1u

C534

.47u

C534

.47u

TP507TP507

R443

100K

R443

100K

C503

.01u

C503

.01u

C426

.01u

C426

.01u

R412

10K

R412

10K

C609

R507

470K

R507

470K

C413

100p

C413

100p

P1P1

R502

10K

R502

10K

U501B

LM358

U501B

LM358

TP505TP505

R441

100K

R441

100K

U503B

LM324

U503B

LM324

R506

PL6

CSA-13-CON

PL6

CSA-13-CON

C607

2.2u

C607

2.2u

C530

.1u

C530

.1u

C526

TP506TP506

R415

20K

R415

20K

R531

C423

.1u

C423

.1u

R404

10K

R404

10K

R520

C508

100p

C508

100p

R442

100K

R442

100K

R449

30K

R449

30K

U506A

4520

U506A

4520

VCC 16

EN 2

CLR 7

GND

6Q2 5

CLK

R418

10K

R418

10K

R401

4.7M

R401

4.7M

C605

2.2u

C605

2.2u

C424

.0022u

C424

.0022u

C417

560p

C417

560p

R528

240K

R528

240K

C522

.022u

C522

.022u

U505D

4070

U505D

4070

147

C407

.1u

C407

.1u

R421

20K

R421

20K

R402

100K

R402

100K

C432

Y404

32.768KHz

Y404

32.768KHz

C416

100p

C416

100p

C419

.1u

C419

.1u

R427

4.7M

R427

4.7M

R451

7.5K

R451

7.5K

Q401

BSS

Q401

BSS

C404

220p

C404

220p

R446

100K

R446

100K

P3P3

R503

10K

R503

10K

R433

100K

R433

100K

C511

.01u

C511

.01u

C606

560p

C606

560p

C521

.1u

C521

.1u

R510

15K

R510

15K

C535

C408

.001u

C408

.001u

R521

150K

R521

150K

C519

.1u

C519

.1u

R431

10K

R431

10K

C410

100p

C410

100p

C517

.047u

C517

.047u

C505

.1u

C505

.1u

U403

8C29466

U403

8C29466

P0-7

P0-5

P0-3 3

P0-1 4

P2-7 5

P2-5

P2-3

P2-1

SMP

P1-7

P1-5

P1-3 12

P1-1

VSS

VCC 28

P0-6

P0-4 26

P0-2 25

P0-0 24

P2-6 23

P2-4 22

P2-2

P2-0

XRES 19

P1-6

P1-4

P1-2

P1-0

U504B

LM324

U504B

LM324

R450

15K

R450

15K

C512

.01u

C512

.01u

C523

.1u

C523

.1u

TP401TP401

C515

.0022u

C515

.0022u

R527

4.7K

R527

4.7K

C529

.1u

C529

.1u

U402

68705C8AFN

U402

68705C8AFN

OSC2

TCMP 38

VDD 44

VPP 4

SS 37

B3 16

D7 39

OSC1

B0 13

B1 14

A5 7

A6 6

A7 5

A4 8

A3 9

A2 10

A1 11

A0 12

C4 27

C5 26

C3 28

C0 31

C1 30

C2 29

C6 25

C7 24

B4 17

B7 21

B6 20

GND

RES

TCAP

IRQ

SCK

MOSI

MISO

RDI

TDO

NC1 40

NC2 18

NC3

NC4

Y402

4.032M

Y402

4.032M

C604

2.2u

C604

2.2u

R448

62K

R448

62K

R532

R413

20K

R413

20K

TP503TP503

C516

.0022u

C516

.0022u

C504

.1u

C504

.1u

C525

NOTE3

C525

NOTE3

C524

.1u

C524

.1u

C403

.1u

C403

.1u

C412

100p

C412

100p

U503D

LM324

U503D

LM324

411

C507

560p

C507

560p

C608

.01u

C608

.01u

RP501

100K

RP501

100K

R428

100K

R428

100K

JP401 1

JP401

R408

39K

R408

39K

R526

82K

R526

82K

C430

100p

C430

100p

R534

8.2K

R534

8.2K

R438

470K

R438

470K

Y403

32.768KHz

Y403

32.768KHz

R501

10K

R501

10K

C533

.1u

C533

.1u

C518

.0047u

C518

.0047u

R444

R435

C425

120p

C425

120p

U501A

LM358

U501A

LM358

R414

10K

R414

10K

R445

NOTE4

R445

NOTE4

R508

10K

R508

10K

R406

100K

R406

100K

R601

10K

R601

10K

R420

10K

R420

10K

R419

20K

R419

20K

R519

27K

R519

27K

U505C

4070

U505C

4070

R447

NOTE4

R447

NOTE4

C415

100p

C415

100p

D605

8.2V

D605

8.2V

C509

.022u

C509

.022u

C502

100p

C502

100p

U503A

LM324

U503A

LM324

C520

.001u

C520

.001u

R504

470K

R504

470K

U404

MAX232A

U404

MAX232A

T1_IN

R1_OUT

12 T1_OUT 14

R1_IN 13

C1+

C1-

C2+ 4

C2- 5

VCC 16

V+ 2

V-

GND

R2_IN 8

T2_OUT 7

T2_IN

R2_OUT

PL7

CSA-13-CON

PL7

CSA-13-CON

U505A

4070

U505A

4070

C527

.1u

C527

.1u

R430

100K

R430

100K

TP502TP502

C418

4 4

3 3

2 2

1 1

+15V

VAN_A

+15V

VAN_A

+15V

VAN_A

+5V

+15V

VAN_A

+15V

+15V VAN_A

VAN_A

+15V

VAN_A

+15V

+5V

VAN_A

+15V

+5V

+15V

+5V

LLG_TONE

DECODER_AUDIO

HANDSET_PTT

EXT_HOOK/MONITOR

DAC_OUT

LINE_2/SUPERVISOR

PTT_LINE_AMP_ENABLE

PTT_MIC_ENABLE

KEYPAD_BEEP

OFFHOOK_SPKR_MUTE

PTT_DISABLE

EAR_MUTE

MIC_AUD_SELECT

FNC_TONE

INTEROP_XOVER

REF_A

TXD2

RXD2

HLG_DET

HLG_SPK_MUTE

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-ANLG

G-1

TRC SERIES

2 2

TRC-500

ANALOG

CJS

AWS

NOV. 19, 2004

07/06/2008

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-ANLG

G-1

TRC SERIES

2 2

TRC-500

ANALOG

CJS

AWS

NOV. 19, 2004

07/06/2008

SIZE

DOCUMENT NUMBER

REV

DATE SHEET

FILE NAME

SCHEMATICAPPR.

MIDIAN ELECTRONICS, INC.

REV.

DWN. BY

DESIGN

500-ANLG

G-1

TRC SERIES

2 2

TRC-500

ANALOG

CJS

AWS

NOV. 19, 2004

07/06/2008

BLK

RED

GRN

YEL

MIC HI YEL

EARPCS GRN

GND BLK

SIMPLEX HANDSET

EAR LEVEL

EXT MON/HOOK RED

GOOSENECK/INT

MICROPHONE

HANDSET

INTERFACE

SPEAKER

LINE

INTERFACE

NOTES

* = NOT INSTALLED

RX NOTCH BANDPASS TUNING

NULLING

18 to 22 VDC

DURING

SIMPLEX TX

DAC TONE LEVEL

EXT_PTT_IN WHT

+15V OUT BLU

RX GAIN

MIC AMP

7.5 VOLTS

ANALOG REFERENCE

TX NOTCH FILTER TUNING

TX NOTCH

LINE AMP

DAC SIDETONE JUMPER

FROM

SPK AMP

RX NOTCH

BANDPASS

LINE LEVELAUDIO MIXER

RX NOTCH

COMPANDOR

4 WIRE/DUPLEX

OPTION

SUPERVISOR/LINE2/

4 WIRE OPTION

SIDE TONE JUMPER

UNDER 4-WIRE OPERATION

GUARD TONE DETECTOR

RX LINE AMP

+15V REGULATOR

TRC-1, TRC-300, AND TRC-400

R445 AND R447 INSTALLED AND

2000 T0 3100 HZ.

09-15-2005 - HANDSET NOTE:

PLACE 10K RESISTOR

ACROSS MIKE ELEMENT

(MULTITURN)

(0805) (0805)

(1206) (0805)

(0805) (0805)

(1206)

(0805)

(MULTITURN)

PRODUCTION DATE OF CMX469AD3

C516 = NOT INSTALLED

NOTE3 - C525 = 1uF USED ONLY WITH SPECIFIC

NOTE2 - ZAP FORMAT C515 AND C516 AS SHOWN.

GSTAR FORMAT C515 = .0047u AND

R452 NOT INSTALLED

NOTE4 - R445, R447 AND R452 = 0R WHEN INSTALLED

TRC-100/200

R445 INSTALLED

R447 AND R452 NOT INSTALLED

TRC-500, TRC-600

R452 INSTALLED

R445 AND R447 NOT INSTALLED

COMPANDOR

NOTE5 - ONLY INSTALLED WHEN LCD OPTION REQUIRED.

HLG 13 Vp-p

165 mVp-p

200 mVp-p

8 Ohm at 2 Watt

SEE

SPK AMP

1/3

PTT

EXT.

RELAY

M LEAD

SEE RX

NOTCH

SEE AUDIO

MIXER

BYPASS

COMPANDOR

ENABLE

SEE

MCU PAGE

3/3

2/3

SPARE

FIXED

ADJ

EAR

DUPLX TRUNK GO

AHEAD BEEP

60 mVp-p

LLG

11.7 Vp-p Full Volume @ -5 dbm

11.8 Vp-p

@0 dbm

HLG 11.3 Vp-p

5.8 Vp-p MIN TRIGGER

SPKR MUTE

200 mVp-p

FUTURE USE

U201B

LM4950

U201B

LM4950

SHUTDOWN

BYPASS

GND TAB 5

GND 4

VDD 6

C115

.047u NPO

C115

.047u NPO

K201

DF2E-DC12V

K201

DF2E-DC12V

C120

.1u

C120

.1u

D302A

1 2

R142

R228

100K

R228

100K

R341

300R

R341

300R

C201

.1u

C201

.1u

R213

4.7K

R213

4.7K

U302D

LM660

U302D

LM660

C313

C104

D301A

1 2

Q305

BSS

Q305

BSS

JP206

F202

300mA Resettable

F202

300mA Resettable

R349

910K

R349

910K

U603

LM7815

U603

LM7815

VIN

GND

VOUT 3

TP103TP103

R207

39K

R207

39K

R222

JP307

Q301

BSS

Q301

BSS

R304

43K

R304

43K

JP211

C319

.1u

C319

.1u

U303B

LM324

U303B

LM324

R143

U103C

LM660

U103C

LM660

R119

36K

R119

36K

JP201

R369

100K

R369

100K

PL1

RJ-45 10 PIN

PL1

RJ-45 10 PIN

R314

R378

100K

R378

100K

R337

180K

R337

180K

U303C

LM324

U303C

LM324

C330

.01u

C330

.01u

R125

470

R125

470

R330

10K

R330

10K

C207

220p

C207

220p

R347

39K

R347

39K

C333

U103B

LM660

U103B

LM660

RP103

3RP103

C309

C304

33u

C304

33u

U303D

LM324

U303D

LM324

JP302

RP203

100K

RP203

100K

R358

C307

C615

33u

C615

33u

R103

22K

R103

22K

R141

22K

R141

22K

TZ205

P0300

TZ205

P0300

C218

560p

C218

560p

R221

150K

R221

150K

C219

560p

C219

560p

U101C

LM660

U101C

LM660

R339

4.7K

R339

4.7K

R206

U102A

SA572

U102A

SA572

RECT_IN

ATK_CAP

G_OUT

THD_TRIM

VCC 16

GND 8

REC_CAP 2

G_IN 7

TRK_TRIM

C100

2.2u

C100

2.2u

R137

JP202

JP207

TP202TP202

R129

U201C

LM4950

U201C

LM4950

R366

43K

R366

43K

R320

100K

R320

100K

R214

300R

R214

300R

R218

C314

R338

22K

R338

22K

R117

33K

R117

33K

C337

.1u

C337

.1u

U104

74LVC1G3157

U104

74LVC1G3157

GND

VDD 5

TZ201

P0300

TZ201

P0300

C302

.022u

C302

.022u

JP210

JP204

C320

2.2u

C320

2.2u

C216

.001u 500V

C216

.001u 500V

R357

R122

10K 1%

R122

10K 1%

C305

2.2u

C305

2.2u

R216

100R

R216

100R

U101B

LM660

U101B

LM660

T202

42TU016

T202

42TU016

1 6

3 4

R204

100K

R204

100K

D602B

3 1

R328

10K

R328

10K

R332

Q201

B25

Q201

B25

D602A

C303

R106

330K

R106

330K

Q202

BSS

Q202

BSS

D601B

3 1

R120

10K 1%

R120

10K 1%

C332

100p

C332

100p

R375

3.3K

R375

3.3K

Q102

Y25

Q102

Y25

R331

10K

R331

10K

R127

10K

R127

10K

C310

100p

C310

100p

R376

470K

R376

470K

D601A

C329 *C329 *

R315

4.7K

R315

4.7K

R225

TP306TP306

R377

R352

R365

47K

R365

47K

JP306

R311

U303A

LM324

U303A

LM324

411

C311

47u

C311

47u

R374

9.1K

R374

9.1K

R210

100K

R210

100K

R356

100R

R356

100R

U103A

LM660

U103A

LM660

411

R220

TP104TP104

C322

470u

C322

470u

C117

.1u

C117

.1u

R107

3.3K

R107

3.3K

RP102

Q103

Y25

Q103

Y25

R104

100K

R104

100K

C111

U302B

LM660

U302B

LM660

R109

100K

R109

100K

Q205

Y25

Q205

Y25

C122

.47u

C122

.47u

R126

10K 1%

R126

10K 1%

TP305TP305

C324

.01u NPO

C324

.01u NPO

R113

R336

33K

R336

33K

R306

2.7M

R306

2.7M

R313

10K 1%

R313

10K 1%

Q302

BSS

Q302

BSS

U103D

LM660

U103D

LM660

R123

10K 1%

R123

10K 1%

R345

C105

C318

.47u

C318

.47u

PL601

2.1 MM DC PWR JACK

PL601

2.1 MM DC PWR JACK

T201

42TU016

T201

42TU016

1 6

3 4

R134

5.6K

R134

5.6K

C220

.033u

C220

.033u

C209

.01u

C209

.01u

C106

R364

10K

R364

10K

R101

4.7K

R101

4.7K

R209

62K

R209

62K

JP208

U302C

LM660

U302C

LM660

R208

10R

R208

10R

TP304TP304

TP301TP301

R361

R370

U201A

LM4950

U201A

LM4950

TP303TP303

EARTH GROUND POST

C323

33u

C323

33u

TP302TP302

R354

100K

R354

100K

TP101TP101

C210

10u

C210

10u

R325

36K

R325

36K

C204

220p

C204

220p

C205

.022u

C205

.022u

R230

100K

R230

100K

R307

10K

R307

10K

C203

.1u

C203

.1u

R211

300R

R211

300R

R334

3.3K

R334

3.3K

R302

47K

R302

47K

C113

.1u

C113

.1u

R114

10K 1%

R114

10K 1%

TZ203

P0300

TZ203

P0300

R223

R133

47K

R133

47K

PL3

RJ-11

PL3

RJ-11

RP304

100K

RP304

100K

C603

.47u

C603

.47u

Q303

BSS

Q303

BSS

R305

47K

R305

47K

C206

.1u

C206

.1u

R322

10K 1%

R322

10K 1%

R110

R373

10K

R373

10K

TZ206

P0300

TZ206

P0300

R363

6.2K

R363

6.2K

R353

100R

R353

100R

R327

100K

R327

100K

RP306

10K

RP306

10K

R318

3.3K

R318

3.3K

C119

.1u

C119

.1u

C612

33u

C612

33u

TP100TP100

R121

10K 1%

R121

10K 1%

Q206

BSS

Q206

BSS

R351

2.2K

R351

2.2K

SR601B

SW_VOL

SR601B

SW_VOL

1 3

Q101

BSS

Q101

BSS

R329

4.7K

R329

4.7K

R202

4.7K

R202

4.7K

TP601TP601

C325

.047u NPO

C325

.047u NPO

TZ601

P0300

TZ601

P0300

C613

.1u

C613

.1u

C602

560p

C602

560p

RP201

100K

RP201

100K

JP305

R118

10K 1%

R118

10K 1%

R100

4.7K

R100

4.7K

JP205

PL101PL101

R140

470K

R140

470K

C611

33u

C611

33u

R335

750K

R335

750K

R229

100K

R229

100K

R112

10K

R112

10K

R372

RP303

123

RP303

123

R319

22K

R319

22K

C116

.01u NPO

C116

.01u NPO

R371

R201

C327

.1u

C327

.1u

JP304

JP303

C315

R317

10K

R317

10K

R139

R132

100K

R132

100K

R309

10K 1%

R309

10K 1%

C308

10u

C308

10u

C316

150p

C316

150p

R227

10K

R227

10K

R205

100K

R205

100K

C114

.1u

C114

.1u

R367

470K

R367

470K

R116

10K 1%

R116

10K 1%

C109

100p

C109

100p

R355

4.7K

R355

4.7K

U301C

LM660

U301C

LM660

C202

.47u

C202

.47u

R131

100K

R131

100K

R362

R105

100K

R105

100K R111

10K

R111

10K

R368

4.7K

R368

4.7K

C208

470u

C208

470u

RP101

100K

RP101

100K

C326

.1u

C326

.1u

R308

10K 1%

R308

10K 1%

C101

560p

C101

560p

R115

10K 1%

R115

10K 1%

D203A

C211

10u

C211

10u

TP102TP102

C214

.001u 500V

C214

.001u 500V

JP203

R316

10K

R316

10K

R343

10K

R343

10K

F201

300mA Resettable

F201

300mA Resettable

R135

C312

.1u

C312

.1u

JP309

U101D

LM660

U101D

LM660

C118

.47u

C118

.47u

SR601A

SW_VOL

SR601A

SW_VOL

4 5

U101A

LM660

U101A

LM660

411

R346

C321

R203

10K

R203

10K

C215

.001u 500V

C215

.001u 500V

R224

C336

.1u

C336

.1u

C601

33u

C601

33u

R138

C614

33u

C614

33u

JP301

C102

.1u

C102

.1u

C334

.47u

C334

.47u

RP302

123

RP302

123

R323

10K 1%

R323

10K 1%

TP201TP201

R344

51R

R344

51R

R108

33K

R108

33K

C112

C306

.1u

C306

.1u

RP202

JP308

D604

5.1V

D604

5.1V

R212

300R

R212

300R

TZ204

P0300

TZ204

P0300

R128

47K

R128

47K

R348

62K

R348

62K

F601

750 mA Resettable Fuse

F601

750 mA Resettable Fuse

R130

2.2K

R130

2.2K

Q304

B25

Q304

B25

R303

10K

R303

10K

R350

470

R350

470

R342

100K

R342

100K

R326

10K 1%

R326

10K 1%

R340

R102

20K

R102

20K

C212

.22u

C212

.22u

U301D

LM660

U301D

LM660

C108

PL301PL301

R215

300R

R215

300R

R136

R226

100K

R226

100K

C110

47u

C110

47u

U102B

SA572

U102B

SA572

RECT_IN 13

ATK_CAP 12

G_OUT 11

THD_TRIM 10

VCC

GND

REC_CAP

G_IN

TRK_TRIM 15

JP209

R310

10K 1%

R310

10K 1%

R301

5.6K

R301

5.6K

C121

.01u

C121

.01u

U302A

LM660

U302A

LM660

411

U301B

LM660

U301B

LM660

R360

100K

R360

100K

R321

33K

R321

33K

C338

.01u

C338

.01u

R359

100K

R359

100K

R217

150K

R217

150K

D301B

1 3

R312

10K 1%

R312

10K 1%

R333

100K

R333

100K

C103

220p

C103

220p

C217

.001u

C217

.001u

R124

10K 1%

R124

10K 1%

JP101

Q203

BSS

Q203

BSS

C213

.001u 500V

C213

.001u 500V

C317

.047u

C317

.047u

TZ202

P0300

TZ202

P0300

U301A

LM660

U301A

LM660

411

R324

10K 1%

R324

10K 1%

C107

10u

C107

10u

JP304 Midian TRC 400 Controller

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