Service Manual

GSM-204-323
Cage backplane interface panel harness assembly (CBIA)
31st Oct 01
Tech. 2–10
Technical Description: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W02-A
Cage backplane interface panel harness assembly (CBIA)
CBIA overview
The CBIA provides a platform for module installation, and power and digital
signal interconnection to cabinet modules. The CBIA consists of:
 The main cage – provides compartments for fans, CTUs, digital modules,
BPSMs, PSMs and CBM.
 The backplane – routes power and signals for all cage modules and power
to the SURF.
 The harness – links the backplane to the interface panel.
 The interface panel – carries the T43/BIB, the internal dc power and
communications connectors.
CBIA and
interface panel
schematic view
Figure 2-8 shows the CBIA main cage and interface panel.
ig.236.rh
DIGITAL MODULE
SECTION OF CAGE
INTERFACE
PANEL
MAIN
CAGE
BACKPLANE
ATTACHED TO
ENTIRE BACK
OF CAGE
HARNESS LINKS
BACKPLANE
CONNECTORS TO
UNDERSIDE OF
INTERFACE PANEL
Figure 2-8 View of CBIA cage and interface panel