Putting into Operation
R&S FSH
1145.5973.12 1.6
E-11
RS-232-C optical interface
(on the right-hand side of the R&S FSH; can be accessed by folding out the stand)
The RS-232-C optical interface is for connecting a printer or PC. The R&S FSH-Z34 RS-232-C optical
cable or the FSH-Z37 USB optical cable R&S is used to make the connection. Starting with the
R&S FSH serial numbers listed below, the R&S FSH-Z37 USB optical cable will replace the
R&S FSH-Z34:
Model Ser.
No.
R&S FSH 3 (1145.5850.03) 103001
R&S FSH 3 (1145.5850.13) 103501
R&S FSH 3 (1145.5850.23) 102501
R&S FSH 6 (1145.5850.06) 101001
R&S FSH 6 (1145.5850.26) 101501
If you use the R&S FSH-Z37 USB optical cable, you need to install a software driver on your PC. The
CD-ROM, which is supplied with the R&S FSH, includes both the driver and the installation instruction.
The optical connection prevents spurious measurements due to interference from these devices.
Use the Serial/Parallel Converter R&S FSH-Z22 for printers with a parallel interface.
Printers with a USB interface cannot be connected directly to the R&S FSH.
Connector for power sensor
The connector has been especially configured for Rohde & Schwarz power sensors. The connector is
used to power the sensor and to transfer data via the power sensor’s interface. If the R&S FSH-Z2
(VSWR bridge and power divider) is used, it is controlled by the connector.
Tracking generator output (models 1145.5850.13, 1145.5850.23 and 1145.5850.26 only)
Connect the tracking generator output to the DUT via an N connector. The nominal output level is
-20 dBm (100 µW). With the R&S FSH3 model 1145.5850.23, the level can be switched between
-20 dBm and 0 dBm (1 mW). Up to 3 GHz, the R&S FSH6 model 1145.5850.26 supplies an output level
of -10 dBm; above 3 GHz, the level is -20 dBm. Starting with serial number 100500, the output level of
the R&S FSH6, model 1145.5850.26, can be reduced in 1 dB steps by maximally 20 dB by means of a
step attenuator.
Caution!
The output is AC-coupled and a voltage that does not exceed the voltage stated on the
housing can be fed into the output; if this voltage is exceeded, the output may be
destroyed.
