Giga-tronics 2500B Series Microwave Signal Generators
Introduction
Operation Manual, Part Number 34737, Rev C, June 30, 2011
Page 21
2500B Rear Panel
Name
Description
NETWORK ANALYZER
BLANKING
A +5 Volt output signal occurring at band crossings, filter switches, and retraces for the
duration of those events.
RAMP OUT
A 0 to 10 Volt ramp output scaled to the frequency sweep.
STOP SWP
IN/OUT
Stop Sweep I/O is a 5 Volt, 2 kΩ, active-low signal that temporarily interrupts the
instrument’s frequency or power ramp sweep. This feature is only available with
HP8340 or HP8370 command emulation.
V/GHz
An output voltage that is directly proportional to output frequency. The output is 0.5
Volts per GHz.
100 MHz OUT
> +5 dBm, AC coupled, 100 MHz low-noise reference output signal into 50 Ω.
10 MHz OUT
10 MHz TTL reference output signal into 50 Ω.
EXT REF IN
The external reference input. Can be either a 10 MHz input that is > -5.0 dBm into 50
Ω or a 100 MHz input > +5 dBm. The 100 MHz input level should not exceed
+8 dBm for best performance.
NOTE:
If the external frequency reference has excessive noise or drift, this will
degrade the performance of the 2500B.
GPIB
A 24-pin IEEE STD 488.2 connector for control of the instrument during remote
operation using GPIB.
RS-232
A DB-9 connector for control of the instrument during remote operation using
RS-232 serial communications.
USB
A USB connector for control of the instrument during remote operation using USB 2.0
(full speed) communications
Ethernet
An Ethernet connector for control of the instrument during remote operation using
LAN interface communications.
AC Power Input
90 to 253 V ac, auto-sensing, 47 Hz to 440 Hz.
NOTE:
All rear panel I/O connectors (except the GPIB, RS-232, LAN, USB, and AC power connections) are type
BNC unless otherwise stated. Some connectors may be inactive due to installed options.
