62
CONNECTOR E - CONTROL
Connections and RS232 links between MPEG PCB and Front-End PCB (internal to module)..
1mm FFC cable and connector has been used.
Connector: PL200 MPEG 16 way straight SMT - JST type 16FMN-BMT-TF
PL809 Front-End 16 way straight SMT - JST type 16FMN-BMT-TF
Signal name
Function
No. of connection pins
Pin Nos.
MODEM_DTR
Modem ‘AT’ signals DTR
1 (Provision)
2
NVM_WP#
NVM write protect
1
3
MODEM_CTS
Modem ‘AT’ signals CTS
1
4
MODEM_DSR
Modem ‘AT’ signals DSR
1 (Provision)
5
/OFFHOOK
/OFFHOOK signal from modem
1
6
MODEM_to_CPU Modem ‘AT’ signals Tx
1
7
CPU_to_MODEM Modem ‘AT’ signals Rx
1
8
MODEM_RTS
Modem ‘AT’ signals RTS
1
9
RS232_RX
RS232 Rx
1
10
RS232_TX
RS232 Tx
1
11
RS232_RTS
RS232 RTS
1
12
RS232_CTS
RS232 CTS
1
13
22KHZ_EN
22kHz LNB enable/modulation, see note 5
1
15
GND
3
1, 14, 16
Total pin requirement
16
Note 5: A single discrete NAND gate function is needed to gate the 22kHz signal to the PSU. This can be used in 2 ways:
•
To simply enable/disable the signal - normal running mode
•
To do the DiSEqC modulation using the enable/disable function - only at programme selection and only if the
DiSEqC capability is enabled.
The MPEG CPU will carry out the enable/diasble function and the DiSEqC modulation of the 22kHz through a port output. Also see
notes 2, 3 associated with connector A2.
CONNECTOR F - DATA STREAM
Connections between Front-End PCB and MPEG PCB (internal to module).
1mm FFC cable and connector has been used.
Connector: PL400 MPEG 14 way straight SMT - JST type 14FMN-BMT-TF
PL804 Front-End 14 way straight SMT - JST type 14FMN-BMT-TF
Function
Estimated current
No. of connection pins
Pin number
CD0
1
2
CD1
1
3
CD2
1
4
CD3
1
5
CD4
1
6
CD5
1
7
CD6
1
8
CD7
1
9
BCLKOUT
1
11
DVALIDOUT
1
13
FSTARTOUT/notERROROUT
1
14
GND
3
1, 10, 12
Total pin requirement
14
CONNECTOR G - INTERNAL POWER SUPPLY LINK
Connections from Front-End PCB to MPEG PCB (internal to module).
1mm FFC cable and connector has been used.
Connector: PL202 MPEG 18 way straight SMT - JST type 18FMN-BMT-TF
PL803 Front-End 18 way straight SMT - JST type 18FMN-BMT-TF
Voltage
Pin Description
Current
No. of connections
Pin Number
5V_MPEG
2
1, 2
3.3V_MPEG
3
6, 7, 8
12V_MPEG
1
10
GND
5
3, 4, 9, 13, 17, 18
SDA
I2C Bus
1
11
SCL
I2C Bus
1
12
RESET#
Main MPEG CPU reset
1
14
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