View
0
Download
0
Category
Preview:
Citation preview
1
VTE-1
Voting Tone Encoder
Manual Revision: 2011-08-26 Covers Loader Firmware Revisions: 1.70 & Higher Covers Application Firmware Revisions: 1.40 & Higher Covers PCB Revisions: F
2
TABLE OF CONTENTS Specifications 3 General Information 4 Hardware Installation 5 Hardware Alignment 6 Jumper Settings 7 Controls & Indicators 8 Operation 8 Theory of Operation 9 Technical Notes 10 Contact Information 10
3
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: Frequency Range: 300-3000 Hz Notch Filter Depth: 45 db relative to 1 KHz Dynamic Range 30 dB COR Input Logic Low Dedicated Phone Line: Output Level -20 to +10 dB pot adjustable Output Impedance 600 Ohm Fuse Protection Auto Resettable with surge suppression: 300 mA
Mechanical: Dimensions: 1.45" H x 6” W x 7.6" L Operating Temp: 0° to +50° C Default Pilot Tone Frequencies: 1950 Hz (default) 2175 Hz 2700 Hz 1600 Hz No Tone (for auxiliary receivers)
4
GENERAL INFORMATION Midian Electronics’ VTE-1, voting tone encoder (also known as a pilot tone generator or status tone generator) with a 600-ohm line driver, pairs with a radio receiver to create an analog satellite voting receiver or auxiliary receiver. Satellite voting receivers are spread out over a geographic area to provide greater radio coverage and are connected via a dedicated line, telemetry link or microwave to a voting comparator. The voting comparator looks at the signal to noise ratio from multiple voting receivers and passes the best quality signal to the dispatcher/repeater. The VTE-1 looks at the COR coming from the receiver. When COR is inactive the VTE-1 generates a voting tone to the voting comparator. This tone is selectable as 1950 Hz, 2175 Hz, 1600 Hz or 2700 Hz. Custom tones can also be ordered from Midian. When the receiver’s COR is active the tone is no longer generated and the audio from the radio is sent to the voting comparator. Midian’s VTE-1 is compatible with the following types of voting systems:
Motorola Spectra-TAC
JPS Communications (Raytheon) SNV-12
GE Mastr II
RF Technologies Eclipse
Other systems using 1950 Hz, 2175 Hz, 1600 Hz or 2700 Hz as the voting tone.
5
HARDWARE INSTALLATION
Be certain to follow standard anti-static procedures when handling any of Midian’s products. Getting Started: The VTE-1 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. Line Interface The line interface connector CON7 is a 10-pin RJ-45 style connector on the left side of the back panel.
2-Wire Operation: For a 2-wire installation, simply connect pins 5 and 6 (red and green) to the dedicated line. A standard 4 conductor phone cable will function properly in connector CON7. See table 3.1. Table 3.1
Pin Color 2-Wire CON7-4 Black Not Used CON7-5 Red Line 1 CON7-6 Green Line 1 CON7-7 Yellow Not Used
Radio Interface: CON6 is located in the middle of the back panel and is used to connect the VTE-1 to the satellite or auxiliary receiver. The following are the connection points: CON6: CON6-2 (Orange): COR: Connect this lead to the busy detect of the radio. This input is used to control whether audio should be passed down the line to the voting comparator or generate the pilot tone. CON6-6 (Red): Battery (13-18 VDC): Connect this lead to 13-18 VDC from the base station/repeater. CON6-7 (Black): Ground: Connect this lead to the base station’s or repeater’s ground. CON6-8 (White): RX Input: Connect to the receive audio in the satellite or auxiliary receiver after the sub-audible hi-pass filter and at some point that gives flat audio to the VTE-1. Speaker audio is fine if it is single ended, but make certain the volume control cannot be turned down accidentally.
Diagram 3.1
1
6
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. RX Input Line Level Adjustment: 1. With voice being received from the base station adjust RP3 while monitoring TP1 with an oscilloscope, so that TP1
shows around 700 mV p-p. Also verify that JP22 Pin 2 shows around 180 mV p-p. RX Output Line Level Adjustment: 1. 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 dB on average voice or -5 dB on peak voice. Pilot Tone Level Adjustment: 1. Prior to performing this step, the line level adjustments above must be done. Set RP2 to the desired dB level (-20 to
+10 dB). Setting the COR Input of the VTE-1 to the inactive state (logic high) will cause the unit to generate the Pilot Tone.
Note: If a line level meter is not available for the level adjustment use an AC voltmeter with a DB scale. A voltmeter would not be set up for balanced 600 ohm audio, but it will provide a close measurement.
7
JUMPER SETTINGS The following table shows the default jumper settings and their function:
Jumper Number
Default Position Description
JP21 1-2 In – 2-3 Out De-Emphasis jumper JP36 1-2 In Termination jumper JP40 1-2 In Termination jumper JP41 1-2 Out 2175 Hz Pilot Tone Select JP42 1-2 In 1950 Hz Pilot Tone Select JP43 1-2 Out 2700 Hz Pilot Tone Select JP44 1-2 Out 1600 Hz Pilot Tone Select JP41-JP44 All Out No Pilot Tone
8
CONTROLS & INDICATORS Power LED: This red LED indicates that power is applied to the unit through the rear connector. COR/MON LED: This red LED indicates carrier is detected from the receiver. Tone LED: This red LED indicates the Pilot Tone is being generated.
OPERATION Voting Tone Encode: When COR is inactive from the receiver to the VTE-1, the unit will generate the selected Pilot Tone to the voting comparator. Receive: When COR is active from the receiver to the VTE-1, the unit will pass the voice from the receiver to the voting comparator.
9
THEORY OF OPERATION RX Voice Path: RX audio from the base station goes through hipass filter C39 and RP3. RP3 also serves as the RX input level adjustment pot. This audio is then fed into audio amplifier U8:2 which acts as low pass filter for noise above 3 KHz and if jumper JP21 is installed it can provide a 6 dB per octave de-emphasis if desired. Audio from U8:2 is fed to C56. Voice audio is input into the audio mixer U8:4. The mixer audio is then input into the line amplifier (U20:3) which drives T1. The line amplifier has an enable transistor that is controlled by the microprocessor. The micro can respond to the COR carrier input and enable this amplifier. Pilot Tone is injected into the audio path at C-59 PWM input. Power Supply: 13-18 VDC is input on the red wire of the Radio Interface connector and then into RF inductor L7 into an auto-resettable polyswitch. D22 is a polarity protection diode that is designed to pop the resettable fuse if power is hooked up backwards. C31 and C34 act as RF bypass caps after the RF inductor L7. U6 acts as a 12 VDC regulator. Its output is fed to all of the analog circuitry and U14:2 acts a pseudo-ground reference at approximately 6 VDC. The 12 VDC on the analog page schematic is also fed over to U4 which is a 5 VDC regulator shown on the digital page to run the microprocessor and the optional encoders/decodes and serial chips. The relays on the digital page receive their 12 VDC from the 12 VDC regulator. They are driven by open-collector transistors to protect the microprocessor from the 12 VDC.
10
TECHNICAL NOTES
No technical notes are available at this time.
MIDIAN CONTACT INFORMATION
Midian Electronics Inc. 2302 East 22nd Street Tucson, Arizona 85713 USA Orders: 1-800-MIDIANS Phone: 520-884-7981 Fax: 520-884-0422 E-mail: sales@midians.com Web: www.midians.com
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
SJ10
SJ7
10KR210
*
R235
1K
R39
1K
R69
10KR40
100KR305
16.0MY2
100KR115
100KR287
4
560pC20
2.2KR230
1K
R63
SJ6
22pC131
100KR226
0RR214
1KR292
1KR32
B25Q5
3
5
6
10
8
712
1
K2
DF2E-DC12V
SJ5
B25Q7
4.7MR3
SJ11
3
5
6
10
8
712
1
K3
DF2E-DC12V
B25Q8
1KR293
22pC133
1KR295
PAD1
2.2KR136
100KR26
1K
R49
B25Q4
.1uC134
SJ4
1KR294
4.7KR306
1K
R41
3
TP12
*C155
100KR224
SJ3
4.7KR38
4.7KR46
22pC3
1KRP2
*R213
BSSQ12
*R19
22pC2
560pC22
560pC28
10KR55
MC9S12D64CFUE
EX
TA
L34
TXD064
VD
DR
29
PA142
PA243
PA344
PE526
XT
AL
35
PE337
PAD0556
PT613
PB521
PP13 PB4 20
PT714
PP31
PB016
PB117
PAD0253
PA4 45
PP04
PP579
PAD0354
PT05
RXD063
PT27
RXD165
TXD1 66
PAD0051
VS
SR
28
PT16
PA041
PB218
PB319
RE
SE
T30
PB622
PE625
PB723
PP22
PP778
PE724
PAD0152
PE427
PP4 80
PE139
PAD0657 PA546
PT3 8
PT512
PA647
PA748
PE040
PE238
PM075
PM174
PM2 73
PM3 72
PM4 71
PM5 70
PJ6 69
PJ768
VS
SP
LL
33
TE
ST
36
VS
S1
10
VS
S2
50
VS
SA
62
VS
SX
76
VD
DA
59
VR
EG
EN
67
VD
DX
77
XF
C32
VD
DP
LL
31
VD
D2
49
VD
D1
9
PAD0758
BK
GD
15
PT411
VR
L61
VR
H60
PAD04 55
U16
4.7KR14
1K
R67
.1uC145
100KR222
1
2
3
4
5
6
7
8
9
10
SEE DOCUMENT 7053-INTFCABLEFOR WIRE COLOR DESIGNATIONS
RJ45-10CON2
560pC26
3.58MHzY1
1KR229
SJ12
RJ45-10
1
2
3
4
5
6
7
8
9
10
SEE DOCUMENT 7503-INTFCABLEFOR WIRE COLOR DESGINATIONS
CON3
1K
R61
560pC23
1.2MR7
.1uC132
1KR43
100KR24
.22uC138
100KR52
100KR113
BSSQ11
BSSQ9
100KR291
1K
R37
4.7KR48
6
.1uC27
.1uC146
.47uC4
11
2233
SJ2
3
5
6
10
8
712
1
K1
DF2E-DC12V
560pC24
BSSQ15
100KR28
2
2.2KR18
100KR114
.1uC147
5
1K
R57
100KR225
BSSQ1
2.2KR164
1K
R71
.1uC5
*C135
.47uC84
0RR219
2954IM
RESET5
OUT11
OUT22
GND 4
IN18
IN23
IC16
IC27
U4
100KR30
1KR45
4.7KR53
1K
R65
100KR285
B25Q6
2.2KR17
.1uC144
RJ45-10
1
2
3
4
5
6
7
8
9
10
CON6
BSSQ16
10KR50
4.7KR42
100KR6
BSSQ10
.22uC137
BSSQ13
1K
R59
560pC21
*C10
1KR5
100KR54
1KR135
NOTE7
T1_IN
11
R1_O
UT
12
T1_O
UT
14
R1_IN
13
C1+
1
C1
-3
C2+
4
C2-
5
VCC16
V+2
V-6
GND15
R2_IN
8
T2_O
UT
7T
2_IN
10
R2_O
UT
9
U17
100KR223
*C9
0RR31
*
C136
8870
OS
C1
8
OS
C2
9
GS3
IN-2
St/GT19
ESt18
IN+1
VREF4
VCC 20
PW
DN
6
INH
5
GN
D10
STD 17
Q1 12
Q2 13
Q3 14
Q4 15
TOE 11
NC17
NC216
U1
0RR25
560pC25
SJ9
560pC19
0RR27
0RR29
11
2233
SJ1
10KR44
22KR51
1MR12
BSSQ14
1K
R47
2
51
SEE DOCUMENT 7503-PROGCABLEFOR BOARD REV INFORMATION
J2
470KR8
SJ8
1
JP31
BSSQ34
+12V
+12V
+12V
+12V
+12V
+5V
+5V
+5V
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+12V
+5V
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
TX_MOD_INPUT
VOX
ANTIVOX
DUPLEX_PARALLEL_CROSSOVER
GUARD_HOLD_TONE
FUNCTION_TONE
RX_LINE_ENABLE_DISABLE
TELCO_RECV_MUTE
TX_OUTPUT_ENABLE_DISABLE
TX_IN_ENABLE_DISABLE
PWM_VOICE
DTMF_DECODER_2
RING
SCR_MODE_IN
RX_INPUT
+13_TO_18_VDC
HOOK
SCR_OFF_HOOK
SCR_PTT_IN
TELCO_FEEDBACK_DISABLE
+5V
SCR_COR
SCR_MODE_OUT
HLG_DET
DTMF_DECODER_1
TELEMETRY_PTT
PTT
MONITOR
F1
F2
COR
SPARE
RADIO
INTERFACE
PROG_IN
PROG_OUT
OPTIONAL
DTMF ENCODER/
DECODER
F1/F2
LOCATED ON
ANALOG PAGE+
-
+
-
+
-
MONITOR
PTT
SEE DOCUMENT 7503-INTFCABLE
FOR WIRE COLOR DESIGNATIONS
OPTIONAL
SERIAL INTERFACE
F1
PTT
F2
MONITOR
COR
SPARE
RXD
TXD
RX IN
TX OUT
RELAYS
TTC-1 ONLY
470KR1
1MR2
ihs7503f1_vte1
CJS
2005-01-17 GPC
2010-10-18
F1
1 of 2 7503
MIDIA� ELECTRO�ICS, I�C.
DATE:
DESIG�:
DW� BY:
REV:
APPRSCHEMATIC
COPYRIGHT © 2009
REV
SHEET PROJECT �UMBER
DOCUME�T �AME
VTE-1
100KR316F14 LED
D31
F13 LED
D30
100KR315
F11 LED
D28
F12 LED
D29
100KR313
100KR314
2 1
A6
D32:1
3 1
A6
D32:2
F3 LED
D14
F4 LED
D15
F5 LED
D16
F6 LED
D17
F7 LED
D18
F8 LED
D19
F9 LED
D20
F10 LED
D21
HOOK LED
D4
TRANSMIT LED
D6
RING LED
D7
SYNC/TONE LED
D10
MONITOR/CARRIER LED
D9
F1 LED
D11
F2 LED
D13
DTMF LEDD1
A4D2:1
A4D5:1
POWER LED
D3
A4D8:1
A4D12:1
))))
11
22
33
JP1
))))11
22
33
JP8
11
22
33
JP14
WIRE
)) ))
11 22 33
JP20
11 22 33JP15
11 22 33JP9
11 22 33JP4
11
22
33
JP13
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
GND POWER
GND POWER
ALL JUMPERSNOT INSTALLED UNLESS SPECIFIED
ALL OUT = NO TONEJP41 = 2175HzJP42 = 1950HzJP43 = 2700HzJP44 = 1600Hz
* = NOT INSTALLED
62KR257
.47uC199
10KR349
.47uC197
11
22
JP44
11
22
JP43
11
22
))))JP42
11
22
JP41
0RR320
0RR319
0RR318
0RR317
+5V
SECONDARY_RX_LINE_EN_DE
VOICE_STORE
100KR328
BSSQ36
100KR337
BSSQ38
.1uC193
-
+
2
31
411
U19:1
LM324
+12V
-
+
6
57
U19:2
LM324 1KRP1
TP24
PWM_2175
TP13-
+
13
1214
U19:4
LM324
-
+
9
108
U19:3
LM324
22RR327
100KR330
BSSQ37
330RR329
TP25
PAD2
47KR23
47KR22
47KR21
47KR20 100KR348
100KR347
*R338
100KR331
+5V
10KR333
.47uC198
*R336
100KR335
*R334
+5V
*R332
BSSQ41 100K
R339
4.7KR345
4.7KR344
4.7KR342
4.7KR341
4.7KR340
4.7KR321
4.7KR322
4.7KR324
4.7KR325
.012µC190
.0047µC186
.0047µC192
.0033µC196
.0033µC189
100R343
.033µC194
100R323
.033µC187
560RR326
10uC154
10uC160
ADC INPUTFUTURE USE
PAD10
FUTURE USEPAD4
FUTURE USEPAD5
FUTURE USEPAD6
FUTURE USEPAD8
ADC INPUTFUTURE USE
PAD9
.015µC185
.033µC188
.015µC191
.033µC195
2.2uC29
2RR356
10uC148
.012µC201
0RR360
PWM_VOICE_1
.1uC8
SD1D36
SD1D35
SD1D37
SD1D38
SD1D39
SD1D40
SD1D41
SD1D42
560RR346
0RR361
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A.001uC71
INDUCTOR
L2
51RR172
.001u2KV
C169
1
TTC OPTION GTTC OPTION H
VOICE SCRAMBLER
CON1
100KR206
-
+
6
57
U18:2
LM660
TP17
.1uC157
.1uC128
.47uC175
-
+
2
31
411
U8:1
LM324
.01uC99
TP8
SPARE
PAD3
0RR288
100KR91
-
+
9
108
U11:3
LMC6036
SA572
RECT_IN3
ATK_CAP4
G_OUT5
THD_TRIM6
VCC 16
GND8
REC_CAP 2
G_IN 7
TRK_TRIM1
U7:1
300 mA Resettable FuseOPTION J
F4
100KR83
10
10K1%R177
47pC77
470RR133
-
+
13
1214
U14:4
LM324
51RR252
10KR131
33KR88
100KR98
-
+
6
57
U11:2
LMC6036
10KR96
10K1%R174
P3100OPTION C
TZ5
INDUCTOR
L6
.47uC85
.1uC121
TP6
1KR261
2
TP3
*R218
B25Q33
22KR279
P0300OPTION J
TZ9
1KRP3
1KR260
10K1%R173
-
+
6
57
U10:2
LM324
1uC103
2.2KR254
*R298
4.7KR156
3.3KR242
LM4950
SHUTDOWN2
BYPASS8
GND TAB 5
GND 4
VDD 6
U20:2
.047uC97
B25Q22
100KRP15
1uC61
100KR139
15KR149
0RR101
4.7KR128
25
36KR282
.22uC113
TP19
*
R297
470KR142
.47uC39
.001u2KV
C165
10K1%R237
2.2KR171
10K1%R166
0RR189
620RR151
SA572
RECT_IN 13
ATK_CAP 12
G_OUT 11
THD_TRIM 10
VCC16
GND8
REC_CAP14
G_IN9
TRK_TRIM 15
U7:2
47KR144
.22uC55
9.1KR73
100KR284
.47uC73
1KR153
10KR198
RJ11-4
1
2
3
4
BLK
RED
GRN
YEL
POTS
CON4
.1uC126
.01u NPOC156
470u
+C32
TP7
100KR276
-
+
2
31
411
U14:1
LM324
INDUCTOR
L7
.47uC162
330KR125
.1uC104
INDUCTOR
L1
*R290
300 mA Resettable FuseOPTION C
F6
200KR275
47KR99
TP11
3
100pC114
TP9
INDUCTOR
L5
BSSQ20
10K1%R250
10K1%R247
P0300
TZ4
.047uC96
47u
+C51
39KR273
1
J1
EARTH CHASSIS GROUND
.22uC88
5KRP4
*Q35
10KRP11
330KR85
470KR191
.001u2KV
C168
10K1%R248
300 mA Resettable FuseOPTION C
F3
56KR100
1.2MR188
0RR281
3.3KR238
12
*
C64
120KR148
330KR126
750KR192
*R296
5KRP10
43KR121
.1uC47
.22uC40
7.5KR263
10KR180
-
+
9
108
U14:3
LM324
.022uC59
1.8MR186
10K1%R179
47KR167
4
P0300OPTION J
TZ8
10K1%R178
10RR278
470RR255
Y25Q29
100pC50
0RR184
TP4
1KR107
-
+
6
57
U12:2
LM324
-
+
6
57
LM324
U14:2
-
+
6
57
U15:2
LM660
1KR162
.033uC171
BSSQ18
1KRP6
.001uC125
-
+
9
108
U10:3
LM324
-
+
13
1214
U8:4
LM32410K1%R246
BSSQ25
1uC101
1KR86
TP5
13
10KR221
1KR233
.47uC158
.1uC177
-
+
2
31
411
U10:1
LM324
1MRP17
1KR264
.01uC75
470KR280
TP20
.47uC60
100KR108
10K1%R170
*
C100
*C76
150pC139
5
.47uC107
47KR120
*
R304
1KR259
SJ13
TP22
P0300
TZ3
100KR134
TP21
.47uC106
24KR145
.001uC124
1KR124
6.8KR95
.1uC98
300 mA Resettable Fuse
F2
INDUCTOR
L4
300 mA Resettable Fuse
F5
LM4950
-9
7U20:3
LM4950
-1
3U20:1
1KRP9
-
+
2
31
411
U11:1
LMC6036
4.7KR150
-
+
9
108
U15:3
LM660
4.7KR143
26
.001uC42
-
+
2
31
411
U12:1
LM324
1.2MR183
*C179
TP14
.01uC93
15KR147
.1uC127
10KR89
390KR187
10KR97
*R243
.01uC176
1.8MR181
.001u2KV
C167
100pC86
10KR90
330RR231
JP34
-
+
2
31
411
U15:1
LM660
47KR76
10KR72
P3100OPTION C
TZ7
10K1%R165
TP18
6
BSSQ27
-
+
13
1214
U11:4
LMC6036
-
+
2
31
411
U18:1
LM660
*
R303
P S
1 6
5
3 4
2
42TU016RCT1
-
+
9
108
U8:3
LM324
330RR234
1KRP5
470u
+C174
22KR116
4.7KR117
10K1%R245
10KRP13
100pC43
1KR81
BSSQ17
-
+
13
1214
U18:4
LM660
29
.001uC111
47KR137
P S
1 6
5
3 4
2
OPTION JT2
1KR251
1uC48
.22uC159
*
TZ1
1N4001D22
0RR241
150RR141
10KR220
1MR129
330RR289
7
8.2KR160
1KR265
.001u2KV
C170
.47uC150
*C102
10K1%R169
10KRP12
10KR197
22KR127
1MRP16
560pC37
33KR176
P0300
TZ2
.1uC36
10KR74
330RR211
10K1%R239
-
+
6
57
U8:2
LM324
TP2
33KR193
.001uC110
300 mA Resettable Fuse
F1
47KR130
Y25Q28
22KR152
30
BSSQ30
TP15
470KR140
560pC94
INDUCTOR
L3
10KR82
RJ45-10
1
2
3
4
5
6
7
8
9
10
CON7
MIC2940A
VIN1
GN
D2
VOUT 3
U6
100KR283
430KR123
21
3S1
SJ14
3.3KR84
P3100OPTION C
TZ6
3.9KR138
390KR182
.1uC49
22
CH1847OPTION C
TIP 1
RING 2
XMIT(-)7
RCV6
VC
C8
GN
D10
RI5
OFFHK4
XM
IT(+
)9
U13
1uC52
100KR277
.1uC161
33KR249
100KR155
22KR154
43KR132
100KRP8
47KR194
47KR119
.22uC89
1MR146
TP10
JP35
-
+
9
108
U18:3
LM660
5KRP7
.001uC72
-
+
13
1214
U10:4
LM324
1000p NPOC79
47u
+C115
.1uC129
23
P0300OPTION J
TZ10
0RR307
100KR87
1KR232
10KR262
.001u2KV
C166
0RR244
-
+
13
1214
U12:4
LM324
30KR240
TP1
330RR106
-
+
13
1214
U15:4
LM660
B25Q23
.47uC153
1uC53
.47uC108
9
300mA Resettable FuseOPTION J
F7
.1uC109
.1uC163
62KR274
-
+
9
108
U12:3
LM324
30KR175
1MR190
1MR118
0RR209
560KR185
10K1%R253
1KR256
VAN_A
+12V
VAN_A
VAN_A
+5V
+5V
+5V
+5V
+12V
+12V
VAN_A
VAN_A
+12V
+12V
VAN_A
+5V
+5V
VAN_A
VAN_A
VAN_A
+12V
+12V
VAN_A
+12V
VAN_A
VAN_A
+12V
+12V
VAN_A
VAN_A
+12V
VAN_A
VAN_A
VAN_AVAN_A
VAN_A
+12V
VAN_A
+5V
VAN_A
+12V
+12V
+5V
VAN_A
+VIN
+VIN
RX_LINE_ENABLE_DISABLE
ANTIVOX
VOX
PWM_VOICE
DUPLEX_PARALLEL_CROSSOVER
RX_INPUT
FUNCTION_TONE
GUARD_HOLD_TONE
DTMF_DECODER_1
TELCO_RECV_MUTE
TX_OUTPUT_ENABLE_DISABLE
PWM_VOICE
DTMF_DECODER_2
TX_IN_ENABLE_DISABLE
+13_TO_18_VDC
RING
HOOK
SCR_TX_IN
SCR_TX_OUT
SCR_TX_IN
SCR_TX_OUT
SCR_RX_IN
SCR_RX_OUT
SCR_RX_OUT
SCR_RX_IN
SCR_MODE_IN
SCR_PTT_IN
TELCO_FEEDBACK_DISABLE
SCR_OFF_HOOK
TX_MOD_INPUT
SCR_COR
SCR_MODE_OUT
HLG_DET
GUARD_FUNCTION
GUARD_FUNCTION
TELEMETRY_PTT
OPTIONAL 4 WIRE TX ONLY
6 VOLTSANALOG REFERENCE
RX LINE AMPRXLINELEVEL
AUDIO MIXERCOMPANDOR
RX INPUTLEVEL
TX AMP3 KC LOWPASS
300 Hz HIGHPASS
TX OUTPUTLEVEL
GUARD/HOLD TONE NOTCH/
GUARD/HOLD TONE DETECTION
FUNCTION TONE DETECTION
BANDPASS FILTER
MOBILE PRIORITY
TELCO PTT
GUARD/HOLD TONE BANDPASS FILTER
TTC-1 POTS OPTION
BASE
STATION
BASE
STATION
COMPANDOR
GUARD/HOLD TONE
NOTCH NULL
DUPLEXCROSSOVERLEVEL
SEE MCU PAGE
SEE MCU PAGE
RX NOTCH BANDPASS TUNING2000 TO 3100 HZ.
TX NOTCH BANDPASS TUNING
(0805) (0805)
(MULTITURN)
(1206)
(0805)
2000 TO 3100 HZ.
(0805) (0805)
(0805)
(1206)
(MULTITURN)
2 WIRE RX/TX
4 WIRE RX ONLY
2000 TO 3100 HZ.
approx. 700mvp-p
180mvpp@1Kc400mvpp
approx. 8.8Vpp@1Kc
Transmitting to Remotes at -10 db
TP4 should be approx 540mvp-p.
Approx. 1.2Vpp@-20dbmLow Lvl Guard - RP13 at center
MICROWAVE (M LEAD)
TELEMETRY RADIO RECV AUDIO
TELEMETRY RADIO MODULATION
TTC-1 TELEMETRY RADIO OPTION
TELEMETRY RADIO OPTIONAL
approx.
@1Kc
220mvpp@-20dbmLow Lvl Guard
Approx 1Vpp@-20dbmLowLvl Guard
TP6 Approx 600mvpp@-20dbmLow Lvl Guard
Approx 750mvpp@-20dbm@1Kc
Approx 3.7Vpp@-10dbm@1KcRP8 at center
TP6 Approx 5.8Vpp@+10dbmHigh Lvl Guard
TP21 Approx 1VMiddleHigh Lvl Guard
+5V
.1uC119
0RR272
.1uC118
330KR203
3.3KR200
1KR199
100KR201
33KR202
.1uC117
1uC116
.001uC34
560pC31
.47uC151
.47uC152
TTC-1 ONLY
RXLINELEVEL
75KR268
100KR205
750KR204
15KR207
15KR208
.47uC122
.1uC123
68pC120
.001uC180
.01uC178
820pC63
47pC172
ihs7503f1_vte1
CJS
2005-01-17 GPC
2010-10-18
F1
2 of 2 7503
MIDIA� ELECTRO�ICS, I�C.
DATE:
DESIG�:
DW� BY:
REV:
APPRSCHEMATIC
COPYRIGHT © 2009
REV
SHEET PROJECT �UMBER
DOCUME�T �AME
VTE-1
47KR308
.22uC181
1KR309
21A7
D24:1
31A7
D24:2
31A7
D23:2
21A7
D23:1
SD1D34
*
D33
11
22
33
JP27
11
22
33
JP26
((((
1122
33
JP22
JUMPER
11 22 33
HI-Z JUMP 1&2LO-Z JUMP 2&3
LO-Z HI-Z
JP25
11
22
JP36
11
22
))))JP40
11
22JP37
11
22
JP38
1KR310
1KR311
NetC171_1
Ne tR81_1
NetR14 5_2
0RR312
470pC183
* = NOT INSTALLED
WIRE
)) ))112233
JP45
1uC182
10KR353
100KR355
BSSQ40SECONDARY_RX_LINE_EN_DE
0RR350
TP23
TP16
VOICE_STORE10KR354
.47uC184
PWM_2175
0RR351
4.7uC35
4.7uC38
4.7uC44
10uC112
10uC54
10uC69
10uC173
2RR352
2.2uC56
JUMPER NORX AMP
3 KC LOPASS SHORT SJ15OR DE-EMPHASIS OPEN SJ15
SJ15
2.2uC87
1uC200
.001uC202
560pC203
INDUCTOR
L8
0RR358
0RR357
10KR94
.47uC58
PWM_VOICE_1
1000p NPOC81
SB1D25
Recommended