Boston Electronics Corporation, 91 Boylston Street, Brookline MA 02445
(800)347-5445 or (617)566-3821 * fax (617)731-0935 * boselec@boselec.com * www.boselec.com
Bartles Industrial Estate, North Street, Redruth, Cornwall TR15 1HR
Tel. (01209) 314608 E-mail: scitec@scitec.uk.com
Fax. (01209) 314609 Web: http://www.scitec.uk.com
Figure 9 Differential DC Coupled Input Settings
Figure 10 Differential DC Coupled Input Circuit
3.7 Low Impedance Differential Input
If you wish to stop the inputs from floating but do not wish to connect the signals grounds
together then it is possible to achieve this by connecting the grounds together via a 100Ω
resistor by removing the link between pins 5 and 6 and linking pins 6 and 7.
For example the jumper settings for the Low Impedance Differential DC coupled input are
shown in Figure 11 and the equivalent circuit is shown in Figure 12. The other modes are
similar.
Figure 11 Low Impedance Differential DC Coupled Input Settings
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