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Instrument Tour
R&S
®
ESR
27
Getting Started 1316.3749.02 ─ 09
You can select between IF and video output with the functionality provided in the
"In-/Output" menu ([INPUT/OUTPUT] key).
4.2.10
USB
The rear panel provides two female USB connectors to connect devices like an
external keyboard or mouse. You can also connect a memory stick to save and
restore instrument settings and measurement data.
4.2.11
AUX Port
The 9 pole SUB-D male connector provides control signals for controlling external
devices. The voltage levels are of the TTL type (5
V).
Pin
Signal
Description
1
+5 V / max. 250 mA
Supply voltage for external circuits
2
I/O
Control Phase N
3
I/O
Controls the 150 kHz highpass fil-
ter
4
I/O
Controls Phase L3
5
I/O
not used
6
I/O
Controls Phase L1
7
I/O
Controls Phase L2
8
GND
Ground
9
READY FOR TRIGGER
Signal indicating that the instru-
ment is ready to receive a trigger
signal (Low active = 0 V)
Short-circuit hazard
Always observe the designated pin assignment. A short-circuit can damage
the port.
Rear Panel View