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37XXXC OM
B-5
REAR PANEL CONNECTORS
CONNECTOR DESCRIPTIONS
1.
CRT Degauss (CRT Only):
Momentary-on pushbutton
that degausses the internal color monitor. It has no effect on
an external monitor.
2.
VGA OUT: 15-pin connector provides VGA output of
37XXXC video display. Figure B-4 provides a pinout dia-
gram.
3.
CRT Brt: Adjustment for CRT/LCD brightness. For CRT,
counterclockwise rotation increases brightness; for LCD,
clockwise rotation increases brightness.
4.
External I/O: Provide I/O access for Channel 1 through 4
limit and Port 1 and 2 bias voltages. Figure B-3 provides a
pinout diagram.
5.
Bias Fuses, Port 1: Fuse, 0.5A, 3AG, 250V, provides pro-
tection for external bias being applied to the active device
connected to test port 1 without disturbing the accuracy of
the 37XXXC measurement.
5A.
Port 1 Source Atten: Provide signal drive for an external
attenuator. Control is provided via the Test Signals menu,
which is accessed using the Setup Menu front panel key (re-
fer to Figure 4-6, page 4-19). Refer to Figure B-7 for a pinout
diagram.
6.
Bias Fuses, Port 2: Fuse, 0.5A, 3AG, 250V, provides
protection for external bias being applied to the active device
connected to test port 2 without disturbing the accuracy of
the 37XXXC measurement.
6A.
Port 2 Test Atten: Same as for Port 1 Source Atten con-
trol (Index 5A, above).
7.
Reference Extension, a1 In to a1 Out: Loop allows ex-
ternal reference to be used as a receiver. This provides for
custom-defined user parameters with any combination of
channels.
7A.
Transfer Switch:
Provide signal drive for an external
ANRITSU transfer switch. Refer to Figure B-6 for a pinout di-
agram.
8.
Line Voltage Input: Three-prong ac plug that provides in-
put for the input-line power. The line voltage must be be-
tween 85 and 264 Vac rms, 43 to 63 Hz.
9.
Reference Extension, b1 In to b1 Out: Loop allows at-
tenuation to be added to prevent damage to the b1 sampler
(when an amplifier is connected to the front panel loop).
10.
Line Fuse: 3 AG fuse cartridge that protects for an input
overcurrent condition. The fuse is slow blow, 8A, 250V.
11.
(Option 12) b2: IF input from 3738A Broadband Test Set.
SMA connector that should be terminated (on chain) when
not in use.
12.
(Option 12) a2: IF input from 3738A Broadband Test Set.
SMA connector that should be terminated (on chain) when
not in use.
13.
(Option 12) Test Set Control Out: Provides control for
3738A Broadband Test Set. Figure 3-8 provides a pinout dia-
gram. TTL levels.
14.
(Option 12) b1: IF input from 3738A Broadband Test Set.
SMA connector that should be terminated (on chain) when
not in use.
15.
(Option 12) a1: IF input from 3738A Broadband Test Set.
SMA connector that should be terminated (on chain) when
not in use.
16.
External Trigger: Allows an external signal to sync the
37XXXC measurements;
±
1V trigger.
17.
10 MHz Ref OUT 0dBm 50
W
: BNC connector that all
ows
the internal 10 MHz reference to be used to phase lock an
external counter or other measuring instrument. Level is typi-
cally 0 dBm into 50
W
impedance.
18.
External Anlg Out: Provides an up-to-
±
10V signal for use
in driving an external plotter or antenna (CW draw).
19.
External SCSI-2 Hard Disk Drive: Provides for connect-
ing an external SCSI-2 hard disk drive (Option 4).
20.
10 MHz Ref IN 0dBm 50W: BNC connector that allows
an external 10 MHz signal (–5 to +5 dBm) to be used as the
frequency reference for phase locking the source frequency.
50
W
impedance.
21.
Ext Anlg In: Provides input to the A5 A/D Converter PCB.
BNC connector allows an external dc voltage to be mea-
sured by the internal analog-to-digital converter circuit.
22.
Serial: Provides control for AutoCal module. Figure B-5
provides a pinout diagram.
23.
Printer Out: 36-pin connector that provides a parallel in-
terface to the companion printer. Figure B-2 describes the
signal lines and shows the connector pinout.
24.
Dedicated GPIB:
IEEE 488 standard 24-pin connector
that allows the 37XXXC to remotely control a 2nd frequency
source, an external plotter, analyzer, or other peripheral.
Figure B-1 provides a pinout diagram.
25.
IEEE 488.2 GPIB: IEEE 488 standard 24-pin connector
that provides for remotely controlling the 37XXXC from an
external computer/controller via the IEEE-488 bus (GPIB).
Figure B-1 provides a pinout diagram.
Содержание 37 C Series
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Страница 96: ...Table of Contents 5 1 INTRODUCTION 5 3 5 2 ERROR MESSAGES 5 3 Chapter 5 Error and Status Messages...
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Страница 117: ...HARD COPY AND DISK OUTPUT DATA DISPLAYS 6 16 37XXXC OM Figure 6 12 Example of a Tabular Printout 37347C...
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Страница 242: ...37XXXC OM 9 21 9 22 TIME DOMAIN MENU FLOWCHART Figure 9 25 Time Domain Menu Flow...
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Страница 582: ...37100C 37200C 37300C Vector Network Analyzers Technical Data Sheet Vector Network Analysis up to 65 GHz...