Agilent Technologies 35670-90066 HRNGBn, HRNGCn, HRNGDn, OVLDAn, OVLDBn, OVLDCn, OVLDDn, SRCn

	Voltages and Signals	Agilent 35670A
	A13 Primary Keypad
	Half Range A — In both the two channel and four channel analyzer, a low on this line turns on
	the channel 1 half range LED. This line goes low when the A1 or A2 Input assembly detects
	that the amplitude of the channel 1 input signal reached half the set range. This line is HRNGA
	inverted by the A11 Keyboard Controller assembly.
HRNGBn	Half Range B — In a two channel analyzer, a low on this line turns on the channel 2 half range
	LED. In a four channel analyzer, a low on this line turns on the channel 3 half range LED.
	This line goes low when the A1 Input assembly detects that the amplitude of the channel 2
	input signal reached half the set range or when the A2 Input assembly detects that the
	amplitude of the channel 3 input signal reached half the set range. This line is HRNGB
	inverted by the A11 Keyboard Controller assembly.
HRNGCn	Half Range C — In a four channel analyzer, a low on this line turns on the channel 2 half range
	LED. This line goes low when the A2 Input assembly detects that the amplitude of the channel
	2 input signal reached half the set range. This line is HRNGC inverted by the A11 Keyboard
	Controller assembly. This line is only used in four channel analyzers.
HRNGDn	Half Range D — In a four channel analyzer, a low on this line turns on the channel 4 half range
	LED. This line goes low when the A2 Input assembly detects that the amplitude of the channel
	4 input signal reached half the set range. This line is HRNGD inverted by the A11 Keyboard
	Controller assembly. This line is only used in four channel analyzers.
OVLDAn	Overload A — In a four channel analyzer, a low on this line turns on the channel 1 overload
	LED. This line goes low when the A2 Input assembly detects that the amplitude of the channel
	1 input signal exceeded the set range. This line is only used in four channel analyzers.
OVLDBn	Overload B — In four channel analyzers, a low on this line turns on the channel 2 overload
	LED. This line goes low when the A2 input assembly detects that the amplitude of the channel
	2 input signal exceeded the set range. This line is only used in four channel analyzers.
OVLDCn	Overload C — In a two channel analyzer, a low on this line turns on the channel 1 overload
	LED. In a four channel analyzer, a low on this line turns on the channel 3 overload LED. This
	line goes low when the A1 Input assembly detects that the amplitude of the channel 1 input
	signal exceeded the set range or when the A2 Input assembly detects that the amplitude of the
	channel 3 input signal exceeded the set range.
OVLDDn	Overload D — In a two channel analyzer, a low on this line turns on the channel 2 overload
	LED. In a four channel analyzer, a low on this line turns on the channel 4 overload LED. This
	line goes low when the A1 Input assembly detects that the amplitude of the channel 2 input
	signal exceeded the set range or when the A2 Input assembly detects that the amplitude of the
	channel 4 input signal exceeded the set range.
ROW0 - ROW6	Row 0 - Row 7 — When the row lines are set high, the row line that remains low indicates that
	a key in that row was pressed.
SRCn	Source On — A low on this line turns on the source LED. This line goes low when the Source
	is turned on.

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