Instruction manual

Clear-Com Communication Systems
Eclipse-32 Matrix Instruction Manual
3-18
WIRING TO A COMPUTER
The DB-9 connector labeled “PC” connects the Eclipse-32 matrix to an
external computer. This connector is located on the Eclipse-32 matrix’s
front panel.
To connect a computer to the matrix, run cable from the matrix’s “PC”
connector to the PC’s serial port. The maximum recommended length
of the cable is approximately 10 feet (3 meters).
A computer has either a 9-pin serial port or a 25-pin serial port. Figure
3-14 shows the wiring for a 9-pin port. Figure 3-15 shows the wiring for
a 25-pin port.
Figure 3-14: Wiring the Matrix DB-9M to a DB-9F Computer Serial Port Con-
nector
Ground (GND)
1
2
9
8
7
6
5
4
3
Transmit (TXD)
Computer Serial Port DB-9F
Cable Connector
Matrix Frame
"IBM-PC RS-232"
DB-9M Cable Connector
1
2
9
8
7
6
5
4
3
Receive (RXD)
Transmit (TXD)
Receive (RXD)