Nova-Tech LMI Series HH Metering Pump - Manual (Page 16)

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8.2 Optional 4-Pin Cable (P/N 33796 HH9 Only)
The optional 4-pin external cable is used for connecting incoming
pulse or pacing signals such as those triggered by a manual
switch, reed switch, opto-coupler or by NPN or PNP transistors.
The remote ON/OFF input is also accessed through the
standard 4-pin connector.
Table 2: Pin Out Table - 4-Pin Cable (P/N 33796)
Figure 6: 4-Pin Cable (P/N 33796)
8.3 Optional 4-Pin Cable (P/N 28368 HH7 Only)
The optional 4-pin external cable is used for connecting incoming
pulse or pacing signals such as those triggered by a manual
switch, reed switch, opto-coupler or by NPN or PNP transistors.
Figure 7: 4-Pin Cable (P/N 28368)
PIN WIRE SIGNAL
1 White +15V Output
2 Black Pacing input
3 Green +15V Ground
4 Red Remote ON/OFF
& Computer Input
PIN WIRE SIGNAL
1 White Pacing Input
2 Black Pacing input
3 None None
4 None None
Table 3: Pin Out Table - 4-Pin Cable (P/N 28368)