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Connecting to a Modem
IP700 Series Installation Guide
All manuals and user guides at all-guides.com
The following figure provides pin assignment information for modem
connections.
Pin assignments for modem connections
Input/
Pin
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
Connecting to a Modem
1
5
6
9
700001
To DB25
Cable Out
8 (DCD)
2 (TXD)
3 (RXD)
20 (DTR)
7 (GND)
6 (DSR)
4 (RTS)
5 (CTS)
22 (RI)
To DB9
Cable Out
7 (RTS)
8 (CTS)
3 (TXD)
2 (RXD
6 (DSR)
9 (RI)
5 (GND)
4 (DTR)
1 (DCD)
1 (DCD)
4 (DTR)
107
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