Preparing for Use > Rear Panel Tour > Description of the Connectors
Description of the Connectors
IEC 625/IEEE 488

IEC-bus (IEEE 488) interface for remote control of the instrument.

See also "GPIB Bus Interface" and "GPIB Interface (IEC/IEEE Bus Interface)".

Note: In order to avoid electromagnetic interference (EMI) caused by open lines, always terminate any connected IEC-bus cable with an instrument or a controller.

INSTR TRIG

Input for external trigger for sweeps, list mode and Fast Hopping Mode.

AUX I/O

Parallel input for FM/PhiM digital data signals as well as control signals for Fast Hopping mode.

NOTICE! Risk of instrument damage. The maximum permissible input voltage is 3.3 V DC.

For detailed description of the AUX I/O connector, refer to "AUX I/O Connector".

USB IN

USB (universal serial bus) interface of type B (device USB).

This interface can be used for remote control of the instrument.

USB CONNECTORS TYPE A
  • Connection of peripherals such as mouse, keyboard, etc.
  • Connection of memory stick for file transmission
  • Firmware update

Further USB interface type A are available on the front panel.

See also "Connecting USB Devices".

PULSE EXT

Input of external pulse signal or input of external trigger/gate signal for internal pulse generator.

See also"Pulse Modulation (PM)" .

PULSE VIDEO

Output of internal pulse generator signal or external pulse signal fed in via the PULSE EXT connector (video signal).

See also"Pulse Modulation (PM)" .

PULSE SYNC

Output of sync signal for pulse generator signal. The sync signal is generated at the beginning of each pulse. For double-pulse generation, the sync signal is generated at the beginning of the first pulse.

EXT TUNE

Tuning input for the internal reference frequency.

See "Reference Oscillator".

LAN CONNECTOR
Ethernet interface
  • For integrating signal generators in a network
  • Remote control of signal generator
  • Remote access to the signal generator
  • Firmware update
AC SUPPLY AND POWER SWITCH

When the R&S SMA is connected to the AC supply, it automatically sets itself to the correct range for the applied voltage (range: see type label). There is no need to set the voltage manually or change fuses.

The power switch can be set to two positions:
  • 0
    The instrument is disconnected from the mains.
  • I
    The instrument is power-supplied. It is either ready for operation (STANDBY) or in operating mode, depending on the position of the ON/STANDBY switch on the instrument front.

See also data sheet and "Connecting the Instrument to the AC Supply".

CF MEMORY SLOT

Slot for removable CompactFlashTM Card (option R&S SMA-B80).

REF OUT

Output of internal reference signal.

See also "Reference Oscillator".

REF IN

Input for external reference signal.

See also "Reference Oscillator".

SENSOR

Rear panel connector for R&S NRP-Zxx power sensors (option R&S SMA-B81).

This option is recommended for use of the instrument in a 19" rack. Installing the instrument in a 19" rack requires a rack adapter (refer to data sheet for Order No.).

LF

Rear panel output for internal LF generator signal (option R&S SMA-B81).

This option is recommended for use of the instrument in a 19" rack. Installing the instrument in a 19" rack requires a rack adapter (refer to data sheet for Order No.).

FM/PM EXT

Rear panel input for external FM or PhiM modulation signals (option R&S SMA-B81).

This option is recommended for use of the instrument in a 19" rack. Installing the instrument in a 19" rack requires a rack adapter (refer to data sheet for Order No.).

AM EXT

Rear panel input for external AM modulation signals (option R&S SMA-B81).

This option is recommended for use of the instrument in a 19" rack. Installing the instrument in a 19" rack requires a rack adapter (refer to data sheet for Order No.).

RF OUT

Rear panel output for RF signal (option R&S SMA-B81).

This option is recommended for use of the instrument in a 19" rack. Installing the instrument in a 19" rack requires a rack adapter (refer to data sheet for Order No.).

NOTICE! Maximum Input Levels. Do not overload the RF output.
The instrument is equipped with a reverse power protection that prevents the RF output against back feed, see "Reverse Power Protection". Nevertheless, the maximum permisssible reverse power is specified in the data sheet.

CLK SYN

Output of clock synthesizer (option R&S SMA-B29).

NOTICE! Maximum Input Levels. Do not overload the Clock Synthesizer output. The maximum permissible back-feed is specified in the data sheet.
See data sheet and "Clock Synthesis"

 


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