Installing the Hardware
11
Figure 2-3 shows a minimal 3-wire cable using only RX (pin 2, data in), TX (pin 3, data out),
and GND (pin 5, ground).
DB-25 Pin (DCE)
Number/Signal
DB-25 Pin (DTE)
Number/Signal
2 TX
7 GND
3 RX
2 TX
3 RX
7 GND
Figure 2-3: DB-25 to DB-25 3-wire Cable
To connect the IPG in DCE mode to a standard PC COM port, use a standard modem cable
as shown in Figure 2-4.
DB-9 Pin
Number
DB-25 Pin
Number/Signal
1 DCD
9 RI
8 CTS
7 RTS
6 DSR
5 GND
4 DTR
3 TX
2 RX
8 DCD
22 RI
5 CTS
4 RTS
6 DSR
7 GND
20 DTR
2 TX
3 RX
Figure 2-4: DB-25 (DCE) to DB-9 Terminal Cable
Cellular Interface
The IPG automatically makes a data-only connection to an available CDMA cellular network
for the carrier the IPG is provisioned and activated on. The cellular interface is typically
enabled by default and the IPG immediately attempts to connect to the cellular network on
power up. This cellular interface is typically used to connect to the public Internet or a
privately managed network.
The Cellular port status LED indicates whether the cellular interface is in use. The signal
strength indicators indicate how well the unit is receiving a signal.
Summary of Contents for IPG-7700 Series
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