Trend Download Board (Rs-232) Components; Trend Download Board Connectors; System Board Connector (X1) - GE TruSat Technical Reference Manual

3.4 Trend Download board (RS-232) components

X2
Side View

Trend Download board connectors

System board connector (X1)

F2
X2
19
20
Figure 3-5. Trend Download board
F2 Fuse block and fuse for alarm relay switch
S1 Alarm relay enable/disable switch
X1 Connector, Trend Download board to System board, 20 pin
X2 Connector, RS-232 Din 6
X3 Jumper set, board configuration identification, 4 pin
Pin # Signal Name
1 VDD
2 VDD
3 OPT_BRD_ID
4 SPI_DIN
5 GND
6 SPI_DOUT
7 GND
8 SPI_CLK
9 GND
_______________________
10
SPI_CS_OPTION0
______________________
11
SPI_CS_OPTION1
12 GND
13 UART_TXD
14 UART_RXD
15 UART_CTS
16 UART_RTS
17 GND
18 ALARM_EVENT
19 V_BATT
20 V_BATT
2 4
1
X3
X1
1 3
2
I/O Description
PWR +3 V power signal, isolated by ferrite
PWR +3 V power signal, isolated by ferrite
O Trend Download board ID, analog signal
I SPI data in signal
GND Non-isolated ground
O SPI data out signal
GND Non-isolated ground
I SPI clock
GND Non-isolated ground
I SPI chip select 0
I SPI chip select 1
GND Non-isolated ground
I RS-232 transmit data
O RS-232 receive data
O RS-232 hardware handshaking
I RS-232 hardware handshaking
GND Non-isolated ground
I Alarm event annunciation
PWR Battery voltage
PWR Battery voltage
Troubleshooting
Enable
S1
Disable
3–11