Rohde & Schwarz SMIQ02B - Page 90

SMIQ Rear Panel
1125.5555.03 2.21 E-7
20
RF
RF Cut-out, provided to relocate the RF output
at the front to the rear of the instrument
21
LF
LF Output LF signal of the internal LF
generator.
Source resistance < 10 Ω.
EXT 1
EXT1 Input external modulation signal,
alternatively for AM or FM (PM).
Input resistance >100 kΩ.
Nominal voltage: U
s
= 1 V
Max. permissible overvoltage: ± 15 V
EXT 2
EXT2 Input external modulation signal for FM
(PM).
Input resistance >100 kΩ.
Nominal voltage: U
s
= 1 V
Max. permissible overvoltage: ± 15 V
X-AXIS
X-AXIS Output supplies a voltage ramp of 0 to 10
V, when a sweep is switched on.
BLANK
BLANK Output supplies a signal to blank the return
sweep or the settling process in LIST mode
Level: TTL
MARKER
MARKER Output is active when the sweep reaches
the marker or at the first step of the LIST
mode. Level: TTL
PULS
PULS Input for pulse modulation. Level: TTL
Input resistance 10Ω
TRIGGER
TRIGGER Input to trigger sweep, LIST mode and
Memory Sequence. Level: TTL
EXTTUNE
EXTTUNE Tuning input for the internal reference
frequency. Voltage range ± 10 V, pulling
range ±1
.
10
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