AOR CU8232 Manual page 7

Connect the AR8000 to the [PROGRAM] socket of the CU8232 as outlined earlier
in section (3) and figure 1.
Connection to a computer is via the rear panel RS232C 9-pin "D" type female
socket. Should you require a male socket then a 9-pin gender changer is
supplied in the package. Should you prefer to use a 25-way "D" type female
socket, an adaptor is also supplied as standard.
Always use a straight RS232 cable (null modem is not to be used!). The RS232
cable should be of good quality and no more than 2m in length. As the CU8232 is
powered from the AR8000, excessive cable length may cause lost data between
the AR8000 and computer.
Connection for an IBM-PC or clone is as follows:
CU8232 9-PIN
2
3
5
All other pins not used but pins 4, 6 & 8 are linked together inside the CU8232.
Some software requires the linking of CTS/RTS at the computer end of the cable
(pins 7 & 8).
CU8232 9-PIN
2
3
5
All other pins not used but pins 4, 6 & 8 are linked together inside the CU8232.
Some software requires the linking of CTS/RTS at the computer end of the cable
(pins 4 & 5).
Figure 6
- 7 -
RS232 operation
IBM-PC 9-PIN
2
3
5 (Ground)
IBM-PC 25-PIN
3
2
7 (Ground)