Tektronix 070-8811-08 User Manual
Reference
62
764 Digital Audio Monitor User Manual
Using the RS-232 Port
The primary use of the 764 RS-232 port is to output session reports.
The reports can be sent directly to any ASCII printer with serial
input, or captured on a PC and saved to disk.
The reports can be sent directly to any ASCII printer with serial
input, or captured on a PC and saved to disk.
The RS-232 port also supports remote control of 764 Digital Audio
Monitors with serial number B020000 and higher. To control the
instrument from a personal computer or ASCII terminal, connect it
as discussed under Cable Requirements and confirm the connection
by downloading a session report to the computer or terminal. Then
refer to the Remote Control Commands section, which begins on
page 66.
Monitors with serial number B020000 and higher. To control the
instrument from a personal computer or ASCII terminal, connect it
as discussed under Cable Requirements and confirm the connection
by downloading a session report to the computer or terminal. Then
refer to the Remote Control Commands section, which begins on
page 66.
Cable Requirements
The 764 is an RS-232 DCE device. Table 15 lists the pin assignments
of the connector. When communicating with a DTE device that has a
male 9-pin (DB9) connector, use a cable that connects pins 2, 3, 5, 7,
and 8 straight-through (example: Tektronix part number
012-1445-00). To communicate with another DCE device, use a null
modem cable (which swaps the lines between pins 2 and 3 and pins 7
and 8). Figure 35 and Figure 36 illustrate cable wiring for communi-
cating with a device that has a 25-pin serial connector.
of the connector. When communicating with a DTE device that has a
male 9-pin (DB9) connector, use a cable that connects pins 2, 3, 5, 7,
and 8 straight-through (example: Tektronix part number
012-1445-00). To communicate with another DCE device, use a null
modem cable (which swaps the lines between pins 2 and 3 and pins 7
and 8). Figure 35 and Figure 36 illustrate cable wiring for communi-
cating with a device that has a 25-pin serial connector.
Table 15: RS-232 pin assignments
764 DB9 pin
Signal name
Signal direction
1
(optional)
—
2
RXD (Received Data)
From 764
3
TXD (Transmitted Data)
To 764
4
(optional)
—
5
Signal Ground
—
6
(optional)
—
7
RTS (Request to Send)
To 764
8
CTS (Clear to Send)
From 764
9
(optional)
—