R&S FSMR3000, Руководство пользователя, Страница: 36 / 733

Getting Started
R&S
®
FSMR3000
36 User Manual 1179.0116.02 ─ 02
4.3.2.8 REF Input / REF Output
The REF Input connectors are used to provide an external reference signal to the
R&S
FSMR3.
The REF Output connectors can be used to provide an external reference signal (or
the optional OCXO reference signal) from the R&S
FSMR3 to other devices that are
connected to this instrument.
Various connectors are provided for different reference signals:
Connector Reference signal Usage
REF Output 2 640 MHz
10 dBm
To provide the internal reference signal from the
R&S
FSMR3 to another device continuously.
Also used to provide OCXO reference signal to another
device.
REF Input 2 10 MHz - 1280 MHz
3 dBm - 13 dBm
To provide an external reference signal to the R&S FSMR3.
REF Output 1 1 MHz - 100 MHz
> 0 dBm
To provide a 640 MHz reference signal from the
R&S
FSMR3 to another device.
REF Input 1 1 MHz - 100 MHz
0 dBm - 15 dBm
To provide an external reference signal to the R&S FSMR3.
4.3.2.9 IF Output
The female BNC connector can be used to output the intermediate frequency (IF).
4.3.2.10 Video Output
The female BNC connector can be used to provide video output (1 V).
4.3.2.11 Aux. Port
A 9-pole SUB-D male connector used to provide low-voltage TTL control signals (max.
5
V). The output signals can be used to control external devices. This connector is pro-
vided by the "Additional Interfaces" option R&S FSMR3-B5.
Short-circuit hazard
Always observe the designated pin assignment. A short-circuit can damage the port.
Instrument Tour