Block Diagram - GE 12R II Series Technical Manual

GE
TRANSPORTATION
SYSTEMS
GLOBAL SIGNALING DIVISION
11.

Block Diagram

J11- T XRX
B+
+8V
COM
PC
TV
RSSI
SQL
DET
KEY
CK
ES
DT
MB
MO
CP
EP
UL
J2- H S/ P GM
B+
COM
HS-MIC
HS-AUD
HS-PTT
HS-HK
TXD1
RXD1
J6- A CC/ R EM
B+
COM
REM-MIC
REM-AUD
REM-PTT
I/O-1
I/O-2
SPK+
SPK-
J5- R EM
IO-3
IO-4
PWRAUD
CH1
CH2
CH3
CH4
CHRTN
TXD2
RXD2
J7- F PB/ C H1
B+
COM
CH1-MIC
CH1-AUD
485-A
485-B
SPK1+
SPK1-
IO-3
IO-4
J8- C H2
B+
COM
CH2-MIC
CH2-AUD
485-A
485-B
SPKR2+
SPKR2-
IO-1
IO-2
COE Communications Engineering Document
Author:
Keith Gilbertson
Date:
3/08/02
Title:
12RII FCC TECHNICAL MANUAL
B+ J3- P SB +5V
+8V J1A
COM
PC
TV
RSSI
SQL
DET
KEY
CK
ES
DT
MB
MO
CP
EP
UL
U13
B+
MX829 Audio Processor
U10-A
Mi c
MX029
1 A
COM HSMIC CH 1
Mic
2
MIC1
Mi c / D emod
Term.
3 B
HSAUD MIC2
Demod I n
CH 2
HSPTT
1 A
HSHK
2
232-TXD1
CH 3
232-RXD1
Cont r o l I n t e r f a ce
CK CLK
SDI CD
CK SERCLK SDO RD
SDI DATA CS1 CS
CS3 LE INT0 I R Q
COM
Mic
MIC2
Term.
AUD2
REMPTT
IO-1
Pre-emphasis
IO-2
SPKR2+
SPKR2-
U14
IO-3 MX828 Sub-Audio Processor
IO-4
PAUD
CH1
CH2
CH3 U6
MX839
CH4
Rx Amp
CHRTN
DET
232-TXD2
232-TXD2
DET2
Cont r o l I n t e r f a ce
CK CLK
ACH1 DAOUT2
SDI CD
B+
ACH2 D/A
A/D SDO RD
ACH3
CS2 CS
ACH4
COM INT0 I R Q
MIC1
CK CLK
AUD1
SDI CD
485-A
SDO RD IRQ INT0
485-B
CS7 CS
SPKR1+
SPKR1-
IO-3
IO-4
B+
HSPTT
3-STATE INPUTS
COM CH1 ACH1 HSHK
5V
MIC2 REMPTT
AUD2 CH2 ACH2 CHRTN
485-A
485-B CH3 ACH3
SPKR2+
SPKR2- CH4 ACH4
IO-1
IO-2
RADIO PROCESSOR MODULE
J1B
SUB-AUD
De-emphasis
Vol .
RX
En Sum
At t e n.
Amp
Mod. 1
Ant i
At t e n.
Audi o Fi l t e r s &
En
Al i a s
Audi o Li m i t e r
Mod. 2
Fi l t e r
Amp2
At t e n.
Mod2 En
BW
En
MSK Rx
MSK Tx
En
DTMF
Encoder
En
CD
MSK-CD
Tone
Sum
Gen.
Amp
Sub- A ud
Mod. 1
Gen.
At t e n.
En
Mod. 2
SUB-AUD
Audi o BPF & Amp2 At t e n.
Mod2 En
6dB at t e nuat o r
Sub- A udi o Sub- A udi o
BPF Decoder s
Tone
Comp.
Decoder
DAC
LOGIC INPUTS
LOGIC I/O
5V 8574
HPTT
1
HK IO-1
2
RPTT
CHR IO-2 SCL
SCL
SDA
SDA
IO-3 I R Q INT1
IO-4
8
Rev:
Pag
28
e:
LT1785 MAX202
OE TXD1 T1I T1O
485-EN
RE A 485-A RXD1 R1O R1I
485-TX D B 485-B TXD2 T2I T2O
485-RX R RXD1 R2O R2I
U9- A
MX029
A
1
CH 1
U12-A AUD2
2
B
3
CH 2
SPK1+
A
SP1
1
U15
2
SPK1-
CH 3
EN
SP1EN
CK SERCLK
SDI DATA
CS4 LE
U7-A HSAUD
U17-A
MX029
1 A
CH 1
U7-B AUD1
2
3 B
CH 2
SPK2+
SP2
1 A
U16
2
SPK2-
CH 3
EN
SP2EN
CK SERCLK
SDI DATA
CS5 LE
MOD2
U3
MX839
MB
SPK2+
MO
SPK2-
PAUD
SQL
RSSI D/A PC
A/D
B+ TV
8V
CK CLK
SDI CD
SDO RD IRQ INT0
CS6 CS
A
33
of
232-TXD1
232-RXD1
232-TXD2
24C64
232-RXD2
SCL SCL
SDA SDA
LM75
T
SCL SCL
M
SDA SDA
P
J9 HOT
DET2 DET
MOD2 MOD
KEY2 KEY
PC2 CH1SEL
CDET CH2SEL
DAOUT2 CH3SEL
J4
T1
P1
P2
S1
S2