Reference Input and Output (EXT REF IN, REF OUT)
R&S AM300
E-1007.9922.12
8-244
Operating manual, 02/2005
8.3
Reference Input and Output (EXT REF IN, REF OUT)
External
reference
If an external reference is used, the internal reference oscillator is
synchronized to the 10 MHz reference signal at connector 10 MHz In [17].
The input level must be 0.5 to 2V.
Internal
reference
The 10 MHz signal from the internal reference oscillator is available at the
10 MHz Out connector [18] so that other devices can be synchronized to the
R&S AM300. The output level is 0 dBm.
Instrument
setting
You can switch over between the internal and external reference in the
CONFIG menu ( 6-207).
8.4
USB Interface (PC, DEV)
Connector
The USB-Host [19] and USB-Device [20] connectors on the rear panel of the
R&S AM300 are for a USB device.
Pin Signal
1 Vbus
(Vcc)
2 D-
3 D+
4 GND
Pin assignment
Shell Shield
Summary of Contents for AM 300
Page 2: ...02 2005 ...
