Specifications

Interfaces ZVx
1043.0009.50 A.24 E-8
A.12 Connectors for Controlling an External Generator of the
R&S Family SME / SMP and other (BLANK, TRIGGER)
A special feature for of the signal generators of the Rohde & Schwarz SME and SMP families is the so-
called "list mode" which serves to accelerate the sweep in the case of external control. In this mode a
list containing a series of frequency points with the corresponding level is transmitted to the generator,
e.g. via IEC-bus. During the sweep, the generator switches from one frequency point to the next via
hardware handshake using the TRIGGER and BLANK signals: By means of a HIGH pulse of the
TRIGGER signal the network analyzer causes the generator to go to the next frequency. During the
switchover procedure, the generator intermediately sets the BLANK signal to HIGH level. After this
signal has returned to LOW, an additional delay time is inserted and the measurement starts.
TRIGGER (output) TTL signal
BLANK (input) TTL signal
A.13 External Reference Mixer Connector (a1 EXT OUT, a1 EXT
IN)
The sockets a1 EXT OUT and a1 EXT IN belong to option ZVR-B6, "Reference Channel Ports". This
option is used, e.g., for comparing two mixers in a vector measurement. See the description of the
REFERENCE MIXER softkey in chapter 2.
a1 EXT OUT (output)
a1 EXT IN (input)
A.14 External Keyboard (KEYBOARD)
A 5-pin DIN connector is provided to allow connecting an external keyboard. Because of its low
interference radiation, the PSA-Z1 keyboard is recommended (Order No. 1009.5001.31). However, any
other multi-function keyboard may also be used.
Pin Signal
1 Keyboard Clock
2Data
3Free
4 Ground
5 +5-V-Power Supply
Fig. A-7 Pin assignments of the KEYBOARD connector.