Technical Information
B-7
Wiring a DB-25 to DB-9 Cable
DB-9 connectors for PCs should be wired at the computer end of the
cable as shown below.
Figure B.2 Wiring a DB-25 Cable
Minimum Requirements
Some computer/terminal equipment supports only a few of your I-
modem’s EIA-232 signals. The minimum required for your I-modem
to operate asynchronously follows:
DB-25
DB-9
Supports this signal
Pin
Pin
Function
2
3
Transmitted Data
3
2
Received Data
7
5
Signal Ground
20
4
Data Terminal Ready
Flow Control Requirements
If your computer and software support Clear to Send and you wish
to use Transmit Data hardware flow control (&H1), Pin 5 (DB-25) or
Pin 8 (DB-9) is required.
If your computer and software support Request to Send and you
wish to use Received Data hardware flow control (&R2), Pin 4
(DB-25) or Pin 7 (DB-9) is required.
Summary of Contents for 000698-13 -
Page 9: ......
Page 15: ...1 6 Courier I modem Getting Started Guide ...
Page 23: ...2 8 Courier I modem Getting Started Guide ...
Page 27: ...3 4 Courier I modem Getting Started Guide ...
Page 42: ...Installing the Internal I modem 4 15 ...
Page 73: ...Windows 95 8 7 4 Click Windows Setup tab ...
Page 86: ...9 4 Courier I modem Getting Started Guide ...
Page 92: ...10 6 Courier I modem Getting Started Guide ...
Page 95: ...Configuring with AT commands 11 3 Regular Connection Without ML PPP Connection With ML PPP ...
Page 99: ...Configuring with AT commands 11 7 I modem supports a 230 kbps DTE rate using ML PPP ...
Page 100: ...11 8 Courier I modem Getting Started Guide ...
Page 102: ...12 2 Courier I modem Getting Started Guide ...
Page 110: ...Viewing LEDs 13 3 ...
Page 124: ...A 4 Courier I modem Getting Started Guide ...
Page 134: ...B 10 Courier I modem Getting Started Guide ...
Page 146: ...D 10 Courier I modem Getting Started Guide ...
Page 151: ...Index ...