Anritsu Series MS278XB Index, Description Connector PS/2 Keyboard, Reference Output, If Output

Instrument Overview		Rear Panel and Connector Diagrams
Table 3-9.MS278XB Rear Panel Index Legend
Index	Name/Image	Description	Connector
	PS/2 Keyboard	Provides connection to an external PS/2 keyboard.	6-pin
	Interface		DIN
10
		Provides a reference frequency output	BNC
		Using the internal 10 MHz reference:	Female
	Reference Output	Level: 8 dBm ± 3 dB
11		Frequency: 10 MHz
		Using an external frequency reference:
		Level: –19 dBm to –14 dBm
		Frequency: Same as external frequency
	Reference Input	Provides a reference frequency input	BNC
		Level: –6 dBm < input signal < +10 dBm	Female
12		Frequency: Any frequency from 1 to 25 MHz with
		1 MHz resolution and 1.544 or 2.048 MHz
	External IF Input	1128.65 MHz input for VSA, mixer, etc.	SMA
			Female
13
	IF Output	Outputs 75 MHz IF	BNC
		Level: –5 dBm ± 5 dB	Female
14		BW: > 40 MHz (>120 MHz without image rejection filter)
	I Input	Differential input for baseband I/Q	BNC
		50Ω or 1MΩ	Female
15		Switchable unbalanced or differential
		1 Volt max
	I Input	VSA I differential input for baseband I/Q	BNC
		50Ω or 1 MΩ	Female
16		Switchable unbalanced or differential
		1 Volt max
	Q Input	VSA Q differential input for baseband I/Q	BNC
		50Ω or 1 MΩ	Female
17		Switchable unbalanced or differential
		1 Volt max

MS278XB OM 3-41