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A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
+5V
+5V
+5V
+5V
+5VLCD
+5V
+5V
+5V
+5V
+5V
VAN_D
+5V
+5V
+5V
+5V
+5V
+5V
+5V
VAN_D
VAN_D
VAN_D
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
VAN_D
+5V
+5V
+5V
+5VLCD
+15V
+5V
+5V
VAN_D
VAN_D
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
HANDSET_PTT
DECODER_AUDIO
EXT_HOOK/MONITOR
PTT_DISABLE
PTT_MIC_ENABLE
DAC_OUT
KEYPAD_BEEP
OFFHOOK_SPKR_MUTE
RESET
RESET
EAR_MUTE
CLK_B
MIC_AUD_SELECT
PTT_LINE_AMP_ENABLE
LINE_2/SUPERVISOR
CLK_A
CLK_A
CLK_B
FFSK
FFSK
RESET
PTT_LINE_AMP_ENABLE
LLG_TONE
FNC_TONE
INTEROP_XOVER
RXD2
TXD2
HLG_DET
SIZE
DOCUMENT NUMBER
REV
DATE
SHEET
of
FILE NAME
COPYRIGHT © 2004
SCHEMATIC
APPR.
MIDIAN ELECTRONICS, INC.
REV.
DWN. BY
DESIGN
500-MCU
G-1
TRC SERIES
D
1
2
TRC-500
MCU
CJS
AWS
NOV. 16, 2004
07/06/2008
SIZE
DOCUMENT NUMBER
REV
DATE
SHEET
of
FILE NAME
COPYRIGHT © 2004
SCHEMATIC
APPR.
MIDIAN ELECTRONICS, INC.
REV.
DWN. BY
DESIGN
500-MCU
G-1
TRC SERIES
D
1
2
TRC-500
MCU
CJS
AWS
NOV. 16, 2004
07/06/2008
SIZE
DOCUMENT NUMBER
REV
DATE
SHEET
of
FILE NAME
COPYRIGHT © 2004
SCHEMATIC
APPR.
MIDIAN ELECTRONICS, INC.
REV.
DWN. BY
DESIGN
500-MCU
G-1
TRC SERIES
D
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
NOTE2
KEYPAD INTERFACE
DB5
DB6
DB7
DB4
ENA
R/W
RS
CTR
2.3 VOLTS
DIGITAL REFERENCE
PRINTER
OPTION
CAD
OPTION 500 - MDC FORMAT
L2/SUPER LED
FOR NOTE INFORMATION, PLEASE SEE ANALOG PAGE.
NOTE5
NOTE5
1.3W
-
+
U503C
LM324
-
+
U503C
LM324
9
10
8
C429
.1u
C429
.1u
R437
0R
R437
0R
R515
10K
R515
10K
R452
NOTE4
R452
NOTE4
U407
DS1390
U407
DS1390
X1
1
X2
2
VBkup
3
CS
4
G
N
D
5
DIN
6
DOUT
7
SCLK
8
S
Q
W
/I
N
T
9
V
C
C
1
0
C532
.1u
C532
.1u
C501
.022u
C501
.022u
R436
1K
R436
1K
R511
100K
R511
100K
TP501
TP501
R513
200K
R513
200K
2
2
R411
20K
R411
20K
R522
15K
R522
15K
R530
100K
R530
100K
C411
100p
C411
100p
C401
22p
C401
22p
-
+
U504D
LM324
-
+
U504D
LM324
13
12
14
D501A
A6
D501A
A6
1
2
P2
P2
C427
22p
C427
22p
U401
68705C9AFN
U401
68705C9AFN
O
S
C
2
4
2
TCMP
38
V
D
D
4
4
V
P
P
4
S
S
3
7
B3
16
D7
39
O
S
C
1
4
3
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
G
N
D
2
2
RES
1
B2
15
TCAP
41
IRQ
2
B5
19
SCK
36
MOSI
35
MISO
34
RDI
32
TDO
33
NC1
40
NC2
18
N
C
3
3
N
C
4
2
3
U601
LP2954IM
U601
LP2954IM
RESET
5
OUT1
1
OUT2
2
G
N
D
4
IN1
8
IN2
3
IC
1
6
IC2
7
2
2
R410
10K
R410
10K
TP602
TP602
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
1
2
3
4
5
6
7
8
+
BT1
BR20321VB
+
BT1
BR20321VB
RP502
100K
RP502
100K
R525
27K
R525
27K
R505
1M
R505
1M
D501B
A6
D501B
A6
3
1
R425
100K
R425
100K
R535
0R
R535
0R
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
V
C
C
1
6
P
C
A
in
1
4
C
1
A
6
C
1
B
7
IN
H
5
G
N
D
8
PC1out
2
VCOin
9
R
2
1
2
R
1
1
1
VCOout
4
PCBin
3
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
P4
P4
-
+
U405
A11
-
+
U405
A11
3
4
1
2
5
D401A
A7
D401A
A7
1
2
R407
10K
R407
10K
U502
8870
U502
8870
O
S
C
1
8
O
S
C
2
9
GS
3
IN-
2
St/GT
19
ESt
18
IN+
1
VREF
4
VCC
20
P
W
D
N
6
IN
H
5
G
N
D
1
0
STD
17
Q1
12
Q2
13
Q3
14
Q4
15
TOE
11
NC1
7
NC2
16
U406
PIC16F716
U406
PIC16F716
O
S
C
1
1
8
O
S
C
2
1
7
SCLK/A4
3
A
0
1
9
MOSI/A1
20
M
C
L
R
4
V
D
D
1
5
V
D
D
1
6
V
S
S
5
V
S
S
6
B
6
1
3
B7
14
B1
8
B2
9
B3
10
B4
11
B
0
7
B
5
1
2
A
2
1
MISO/A3
2
R453
*
R453
*
U508
CMX469AD3
U508
CMX469AD3
RX_DATA
12
CD
13
RX_SYNC
15
TX_DATA_IN
5
V
C
C
2
0
C
L
K
_
R
A
T
E
1
8
RX_IN
14
XTAL
1
XTAL
2
TX_OUT
4
4800
17
TX_ENA
6
1200/2400
16
CDRC
19
VBIAS
9
V
S
S
1
0
TX_SYNC
3
NC2
7
NC3
8
NC4
11
C506
.01u
C506
.01u
U602
LP2954IM
U602
LP2954IM
RESET
5
OUT1
1
OUT2
2
G
N
D
4
IN1
8
IN2
3
IC
1
6
IC2
7
R514
1M
R514
1M
C531
.1u
C531
.1u
1
JP409
1
JP409
R422
10K
R422
10K
U506B
4520
U506B
4520
V
C
C
1
6
E
N
1
0
C
L
R
1
5
G
N
D
8
Q3
14
Q2
13
Q
0
1
1
Q
1
1
2
C
L
K
9
Y401
3.58M
Y401
3.58M
R405
10K
R405
10K
R423
20K
R423
20K
C610
.1u
C610
.1u
TP603
TP603
TP504
TP504
R518
7.5K
R518
7.5K
-
+
U504A
LM324
-
+
U504A
LM324
2
3
1
4
1
1
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
*
R529
*
U505B
4070
U505B
4070
5
6
4
R424
20K
R424
20K
C420
.1u
C420
.1u
-
+
U504C
LM324
-
+
U504C
LM324
9
10
8
R409
20K
R409
20K
R512
39K
R512
39K
C428
.1u
C428
.1u
C534
.47u
C534
.47u
TP507
TP507
R443
100K
R443
100K
C503
.01u
C503
.01u
C426
.01u
C426
.01u
R412
10K
R412
10K
C609
*
C609
*
R507
470K
R507
470K
C413
100p
C413
100p
P1
P1
R502
10K
R502
10K
+
-
U501B
LM358
+
-
U501B
LM358
5
6
7
8
4
TP505
TP505
R441
100K
R441
100K
-
+
U503B
LM324
-
+
U503B
LM324
6
5
7
R506
1M
R506
1M
PL6
CSA-13-CON
PL6
CSA-13-CON
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
+
C607
2.2u
+
C607
2.2u
C530
.1u
C530
.1u
C526
1u
C526
1u
TP506
TP506
R415
20K
R415
20K
R531
*
R531
*
C423
.1u
C423
.1u
R404
10K
R404
10K
R520
1M
R520
1M
C508
100p
C508
100p
R442
100K
R442
100K
R449
30K
R449
30K
U506A
4520
U506A
4520
V
C
C
1
6
E
N
2
C
L
R
7
G
N
D
8
Q3
6
Q2
5
Q
0
3
Q
1
4
C
L
K
1
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
12
13
11
1
4
7
C407
.1u
C407
.1u
R421
20K
R421
20K
R402
100K
R402
100K
C432
1u
C432
1u
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
5
5
P3
P3
R503
10K
R503
10K
R433
100K
R433
100K
C511
.01u
C511
.01u
C606
560p
C606
560p
3
3
C521
.1u
C521
.1u
R510
15K
R510
15K
C535
*
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
1
P0-5
2
P0-3
3
P0-1
4
P2-7
5
P2-5
6
P2-3
7
P2-1
8
SMP
9
P
1
-7
1
0
P
1
-5
1
1
P
1
-3
1
2
P1-1
13
V
S
S
1
4
V
C
C
2
8
P0-6
27
P0-4
26
P0-2
25
P0-0
24
P2-6
23
P2-4
22
P2-2
21
P2-0
20
X
R
E
S
1
9
P
1
-6
1
8
P
1
-4
1
7
P
1
-2
1
6
P1-0
15
-
+
U504B
LM324
-
+
U504B
LM324
6
5
7
R450
15K
R450
15K
C512
.01u
C512
.01u
C523
.1u
C523
.1u
TP401
TP401
C515
.0022u
C515
.0022u
R527
4.7K
R527
4.7K
C529
.1u
C529
.1u
U402
68705C8AFN
U402
68705C8AFN
OSC2
42
T
C
M
P
3
8
V
D
D
4
4
V
P
P
4
S
S
3
7
B
3
1
6
D
7
3
9
OSC1
43
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
G
N
D
2
2
RES
1
B
2
1
5
TCAP
41
IRQ
2
B5
19
SCK
36
MOSI
35
MISO
34
RDI
32
TDO
33
NC1
40
NC2
18
N
C
3
3
N
C
4
2
3
Y402
4.032M
Y402
4.032M
+
C604
2.2u
+
C604
2.2u
R448
62K
R448
62K
R532
*
R532
*
R413
20K
R413
20K
TP503
TP503
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
13
12
14
4
1
1
C507
560p
C507
560p
C608
.01u
C608
.01u
RP501
100K
1
2
3
RP501
100K
1
2
3
4
4
R428
100K
R428
100K
1
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
0R
R444
0R
R435
*
R435
*
C425
120p
C425
120p
+
-
U501A
LM358
+
-
U501A
LM358
2
3
1
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
5
5
R519
27K
R519
27K
U505C
4070
U505C
4070
8
9
10
R447
NOTE4
R447
NOTE4
4
4
C415
100p
C415
100p
D605
8.2V
D605
8.2V
C509
.022u
C509
.022u
C502
100p
C502
100p
-
+
U503A
LM324
-
+
U503A
LM324
2
3
1
C520
.001u
C520
.001u
R504
470K
R504
470K
U404
MAX232A
U404
MAX232A
T1_IN
11
R1_OUT
12
T1_OUT
14
R1_IN
13
C1+
1
C1-
3
C2+
4
C2-
5
V
C
C
1
6
V
+
2
V
-
6
G
N
D
1
5
R2_IN
8
T2_OUT
7
T2_IN
10
R2_OUT
9
3
3
PL7
CSA-13-CON
PL7
CSA-13-CON
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
U505A
4070
U505A
4070
1
2
3
C527
.1u
C527
.1u
R430
100K
R430
100K
TP502
TP502
C418
1u
C418
1u