APC MX28B-1200 User Manual
Revision B
MX28B-1200 PRODUCT MANUAL
MX28B-1200/2400
19
5.6.2 Control Wiring
Cables for controlling and monitoring the rectifiers and circuit breakers/fuses must be run from
expansion frames to the control unit in the base frame. There are three basic cables used for
these functions:
expansion frames to the control unit in the base frame. There are three basic cables used for
these functions:
•= The AWA-0970 ten-pin ribbon cable connector handles serial communications for rectifier
reporting and control. This cable connects to the J1 connector of the DC/DC converter
PCB’s (EAA-0111) in each power box frame.
PCB’s (EAA-0111) in each power box frame.
•= Circuit breaker reporting in extension power and distribution bays is communicated back to
the control unit through the AWA-0972 cable. This cable is connected to J15 on the control
unit interface PCB in the base unit and runs to connector J2 on the Alarm Extension PCB
(EAA-0072) in the remote bay. Additional bays are connected via the same cable, which
connects up to four Alarm Extension PCB’s.
unit interface PCB in the base unit and runs to connector J2 on the Alarm Extension PCB
(EAA-0072) in the remote bay. Additional bays are connected via the same cable, which
connects up to four Alarm Extension PCB’s.
•= Fuse reporting is routed from the Fuse Sense PCB (ADV-1204) to the control unit via cable
AWA-0967.
Refer to Figure 5-6 for a pictorial representation of multi-bay cable connection. Figure 5-7
shows the information as a wiring diagram.
shows the information as a wiring diagram.