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2.2 LED Indicators
The power LED blinks continuously if the modem is powered. The GPS LED stays on while it is
getting a GPS fix goes off once it gets its fix. The Cell LED will flash red while it is in contact with
the tower. The BIST (Built-In Self-Test) LED indicates if there is a problem after a power-on self-
test sequence. Please refer to appendix A for a detailed explanation of LED behavior.
2.3 Comm Port Pin-out
RxD—2
TxD—3
DTR—4
GND—5
DSR—6
RTS—7
CTS—8
Ho
st Syst
e
m
—DTE
RxD—2
TxD—3
DTR—4
GND—5
DSR—6
RTS—7
CTS—8
Ce
ll-Net—
D
TE
Null Modem Connection
for Cell-Net Setup
Cell-Net is a DTE, Use this pinout configuration when connecting the serial comm port to
another DTE such as a computer. Note that you will need a null modem cable or a null modem
with a straight through cable to connect to a computer through the serial port.
TxD—2
RxD—3
DSR—4
GND—5
DTR—6
CTS—7
RTS—8
RS232 Equipment—
DCE
RxD—2
TxD—3
DTR—4
GND—5
DSR—6
RTS—7
CTS—8
Ce
ll-Net—
D
TE
Straight Cable Connection
for Cell-Net Use
Cell-Net can be connected to a DCE such as a data logger or any other RS232 device using a
straight through cable.
Содержание 93950A
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