Rear
Panel Features and Connectors
0
19
pg63e
Figure 1-3. HP 8753E Bear Panel
Figure 
l-3
 illustrates the features and connectors of the rear panel, described below.
Requirements for input signals to the rear panel connectors are provided in Chapter 7,
“Specifications and Measurement 
Uncertanuies 
n
1.
2.
3.
4.
5.
6.
7.
8.
9.
HP-Ill connector. This allows you to connect the analyzer to an external controller,
compatible peripherals, and other instruments for an automated system. Refer to the
“Compatible Peripherals” chapter in this document for HP-IB information, limitations, and
coniigurations
PARALLEL interface. 
This connector allows the analyzer to output to a peripheral with
a parallel input. Also included, is a general purpose input/output 
(GPIO)
 bus that can
control eight output bits and read five input bits through test sequencing. Refer to the
“Compatible Peripherals” chapter for information on 
con@uing
 a peripheral. Also refer
to “Application and Operation Concepts” for information on GPIO.
RS-232 
interface 
This connector allows the analyzer to output to a peripheral with an
W-232  (serial) input.
KEYBOARD input (mini-DIN). This 
connector allows you to connect an external
keyboard. This provides a more convenient means to enter a title for storage ties, as well
as substitute for the analyzer’s front panel keyboard.
Power cord receptacle, with fuse. 
For information on replacing the fuse, refer to the
HP87533
 
Network
 Anulgzer 
Instullution
 and 
Quick
 
Start
 
Guide
 
or the
HP
 
87533
 
Network
 
Analps-
 
Seruice
 
Guide.
Line voltage selector switch. 
For more information refer to the 
HP 
87533
 
Network
Analyzer
 
Installation
 
and
 
Quick
 
Start
 
Guide.
l%.n.
 
This
 fan provides forced-air cooling for the analyzer.
10 
ME
 PRECISION REFERENCE OUTPUT. (Option lD5)
10 
MHZ
 REFERENCE ADJUST. (Option 
lD5)
HP 
8753E
 Description and Options
l-1
 1