Panasonic KX-TD500 - Expansion to 2-Shelf System

2.2.2 Expansion to 2-Shelf System
Installation 2-9
The KX-TD500 System can be expanded to 2-Shelf System by
installing the Expansion Shelf 1 on the Basic Shelf.
The 2-Shelf system can be equipped with up to 416 lines (including
extensions and CO lines).
The following figure shows a 2-Shelf System composed of a basic
shelf and an expansion shelf.
POWER
ON 1
FUSE
OFF
POWER
ON 1
FUSE
OFF
DIGITAL SUPER HYBRID SYSTEM
RUN
OFF LINE
ALARM