Figure 40: Single And Dual Unit Termination Panels - ABB XSeriesG4 User Manual

Dual unit
G4
Wiring to a XRC 6990 dual unit is reflected by two termination panels on the rear of the enclosure, two XRC
interior and two display and local communication ports on the front. Likewise, if units are configured for the optional keypad,
there will be two separate keypads on the front.
Since wiring for the dual unit configuration is identical for each unit, all discussions will focus on the single unit configuration.
Figure 40 shows the single and dual unit termination panel.
XRC #1
Unit #1
P6B P6A
P8A
P8B
P20 P23
P18
SINGLE UNIT PANEL

Figure 40: Single and dual unit termination panels

XRC #2 XRC #1
Unit #2 Unit #1
P6B P6A P6B P6A
P8A P8A
P8B P8B
P20 P23 P20 P23
P18 P18
DUAL UNIT PANEL
XSeriesG4 Remote Controller User's manual 2103334 Rev. AB | 37
2 Installation
G4
boards in the