Computer interfaces
Pin
1
2
3
12
Chapter 1 Getting Started
This section describes the RS-232, GPIB, and USB interfaces.
RS-232 interface
Each generator has a standard RS-232 serial connector, labeled "Serial." This is a 9-pin
D-Sub male connector which enables you to connect the generator with a computer. A null
modem cable is provided to support this interface. You can communicate with the
generator either through the command line interface from a telnet session or from the
Video Generator Manager (VGM) application. The pinouts for the RS-232 connector are
shown in the following table.
Signal
Data Carrier Detect
Received Data
Transmitted Data
GPIB interface (optional)
The GBIP interface allows you to use the generator as a programmable video signal
source in a larger automated test system. Generators that have the GPIB interface option
have two rotary switches for setting the GPIB address. These switches are accessible
through the ventilation slots. The GPIB connector pinouts are listed in the following table.
Pin
Signal
Pin
1
DIO1
7
2
DIO2
8
3
DIO3
9
4
DIO4
10
5
EOI
11
6
DAV
12
USB interface
Use the USB interface for downloading bitmap images from a computer. With VGM 4.0 or
later, the USB interface can be used in place of the serial interface.
Pin
Signal
4
Data Terminal Ready
5
Signal Ground
6
Data Set Ready
Signal
Pin
Signal
NRFD
13
DIO5
NDAC
14
DIO6
IFC
15
DIO7
SRQ
16
DIO8
ATN
17
REN
Shield
18
Shield
Pin
Signal
7
Request to Send
8
Clear to Send
9
Ring Indicator
Pin
Signal
19
Shield
20
Shield
21
Shield
22
Shield
23
Shield
24
Signal Ground
Need help?
Do you have a question about the 802BT and is the answer not in the manual?