Progressive International Electronics EZ Wire DBox - Manual (Page 10)

PI DBox Installation Guide
Version 5.0 January 2012
Page 6
For stand-alone applications:
For applications using PIE products, see description earlier in this section.
3. Referring to Diagram: Key Components of PI DBox — Stand-Alone Current Loop Style,
connect to the dispenser manufacturer’s controller. From the PI DBox, use the dispenser
manufacturer’s standard link. Wayne must be connected using current loop. The Gilbarco
controller can be connected using either current loop (two-wire interface) or RS422. Ensure
that position JP10 is jumpered to correspond to the connection used (CL for current loop and
RS422 for RS422 interface).
If connecting through RS422, in addition to selecting RS422 on jumper JP10, jumper
selections on positions JP11 and JP12 should be configured to either invert or not to invert
the RS422 signal. To invert RS422 signal, jumper the 4 pins closest to labeling of the
position. To choose not to invert the RS422 signal, jumper the 4 pins farthest from the
labeling of the position. See Jumpering for RS422 Signal Inversion for Stand-Alone Current
Loop Style which follows.
4. If linking dispensers, link through the Link Port of the PI DBox to the next PI DBox. There is a
normal/isolate switch associated with each link. Position JP9 should be jumpered to isolate if
not linking to a second DBox. JP9 should be jumpered to normal for two DBoxes. See
Diagram: Key Components of PI DBox — Stand-Alone Current Loop Style.
5. Proceed with programming of system.