Pacific Scientific 6415 Installation & Hardware Reference Manual page 51

Oscillator/drive
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Frequency Range
E2 jumper sets the VCO maximum output pulses frequency range.
Settings
There are two frequency ranges selectable by a jumper to enhance
output speed resolution.
E2
IN
OUT
Coarse Resolution (E2 Removed)
Speed Resolution (62.5Khz/V)
0
2V
0
125Khz
Fine Resolution (E2 Installed)
Speed Resolution (31.25Khz/V)
2V
0
0
62.5Khz
3 - 10
Frequency Range
Low Frequency
250 Khz maximum VCO output pulses
High Frequency
500 Khz maximum VCO output pulses
4V
250Khz
4V
125Khz
187.5Khz
6415 Installation and Hardware Reference Manual - Rev E
6V
8V
375Khz
500Khz
6V
8V
250Khz

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