Polycom SpectraLink RCO400 - Manual (Page 16)

SpectraLink 6300 MCU: Facility Preparation
PN: 1725-36122-001_N.doc 16
Operator’s Console and software when the card is installed. Interface
Modules of different interface types can be mixed within a shelf.
Interface Modules are “hot swappable”; they can be removed and
replaced without affecting service on the rest of the system.
Intershelf Junction Panel (JPI300)
The Intershelf Junction Panel (JPI300) connects Expansion Shelf
Controllers on expansion shelves to the system controller, creating a
completed communication channel between network elements. The
Intershelf Junction Panel physically connects the network, converting
RJ-21 connections from the System Controller to the RJ-45 connection
on the Shelf Controller.
Base Stations
Radio Base Stations,or cells, provide the communication channel
between the MCU and the handsets. The Base Station and handset use
digital spread spectrum radio transmission in the 902-928 MHz
frequency band.
Each Base Station supports multiple users and covers a transmission
area in excess of 50,000 square feet. The signal propagation is
dependent on transmission obstructions within the building. A call is
passed from one Base Station to another as the user walks throughout
the coverage area. The SpectraLink 6000 System is designed to
provide seamless coverage, enabling real-time hand-off of active calls.
Base Station