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1
Overview
Figure 4 Pin Assignments for Modem Connection
System Status LEDs
You can visually monitor the status of the Nokia 500s appliance by checking
the system status LEDs. The system status LEDs are located on the center of
the front panel, as shown in
24
1
Pin
Input/Output
1 (DCD)
Input
2 (RXD)
Input
3 (TXD)
Output
4 (DTR)
Output
5 (GND)
6 (DSR)
Input
7 (RTS)
Output
8 (CTS)
Input
9 (RI)
Output
Figure
5
6
9
700001
To DB25
To DB9
Cable Out
Cable Out
8 (DCD)
7 (RTS)
8 (CTS)
2 (TXD)
3 (TXD)
3 (RXD)
2 (RXD
20 (DTR)
6 (DSR)
9 (RI)
7 (GND)
5 (GND)
6 (DSR)
4 (DTR)
4 (RTS)
1 (DCD)
5 (CTS)
1 (DCD)
22 (RI)
4 (DTR)
5.
Nokia 500s Installation Guide
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