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Front panel inputs/outputs are: | Front panel inputs/outputs are: | ||
* RF INPUT | * RF INPUT (50 Ω [[N connector]]) – Input for RF signals to 21 GHz. If input signal has a DC component, use a blocking capacitor | ||
* CAL OUT [[BNC connector]] | * CAL OUT ([[BNC connector]]) – Provides 100 MHz, –20 dBm signal and a comb of frequency markers 100 MHz apart | ||
* 1ST LO OUTPUT [[SMA connector]] | * 1ST LO OUTPUT ([[SMA connector]]) – Output of the 1st local oscillator, must be terminated into 50 Ω when not connected. | ||
* 2ND LO OUTPUT [[SMA connector]] | * 2ND LO OUTPUT ([[SMA connector]]) – Output of the 2nd local oscillator, must be terminated into 50 Ω when not connected. | ||
* EXTERNAL MIXER RF INPUT [[TNC connector]] | * EXTERNAL MIXER RF INPUT ([[TNC connector]], 50 Ω) | ||
* Camera Power | |||
Rear panel inputs/outputs are: | Rear panel inputs/outputs are: | ||
* PROBE POWER | * PROBE POWER – Provides operating voltages (+5 V, -15 V, +15 V; 100 mA max each) for active probes | ||
* HORIZ | * HORIZ/TRIG (input, [[BNC connector|BNC]]) – In External Triggering mode, AC coupled input for trigger signals; when TIME/DIV selection is EXT, DC coupled input for horizontal sweep voltages | ||
* MARKER/VIDEO | * MARKER/VIDEO (B053575+, output, [[BNC connector|BNC]]) – interfaces the 492/492P with a TV Sideband Adapter, such as the Tek [[1405]], so a marker from the adapter is displayed on the internal video. External video applied to this connector will also be displayed if pin 1 of the ACCESSORIES connector is grounded. | ||
* | ** Opt. 42 replaces MARKER/VIDEO with 110 MHz IF (output, [[BNC connector|BNC]]) – 3 dB signal bandwidth ≥ 4.5 MHz | ||
* VERT ( | * EXT PRESELECTOR (B053574 and below) (output, [[BNC connector|BNC]]) – variable voltage (approx -0.2 V to +10 V) proportional to center frequency, for preselector bands of Opt. 01 instruments, to drive an external preselector | ||
* PEN LIFT ( | * HORIZ (output, [[BNC connector|BNC]]) – 0.5 V/div horizontal signal | ||
* 10 MHz IF ( | * VERT (output, [[BNC connector|BNC]]) – Video signal with 0.5 V/Div | ||
* J104 ACCESSORY (B053575 | * PEN LIFT (output, [[BNC connector|BNC]]) – TTL compatible signal to lift the pen of a chart recorder during sweep retrace. In Opt. 42 instruments this port may also be used for inputting external video if pin 1 of the ACCESSORY connector is grounded. | ||
* IEEE STD 488 PORT [[GPIB interface]] | * 10 MHz IF (output, [[BNC connector|BNC]]) – Output of the 10 MHz IF | ||
* J104 ACCESSORY (B053575+ only), female [[DB25 connector]] – Provides bidirectional access to the instrument bus. | |||
* IEEE STD 488 PORT [[GPIB interface]] – Added to all "P" suffixed instruments | |||
==Pictures== | ==Pictures== |