User Manual

19June2000 WLL-RPC/RP-IN/UM-1.0
2
RPC Installation
2 RPC Installation
2.1 General Description
The Radio Port Controller (RPC) functions as the controller and power distributor
for the Radio Ports (RPs). It is also the concentrator of the speech paths and the
protocol converter for the PHS protocol and the Q.931 protocol. It has Dual Tone
Multi Frequency (DTMF) senders for dialing to the Local Exchange (LE) through
the Central Office Terminal (COT). In addition, the RPC synchronizes the
associated RPs by extracting the synchronous clock from the E1 line connected to
the COT and distributing it to all of the associated RPs.
RPCs can be co-located with a COT or located remotely and communicate with
the COT using E1 transmission over:
• High Density Subscriber Loop (HDSL)
• Fiber Optic Transmission (FOT)
• Digital microwave radio
Figure 2-1 presents an overview of the RPC and RPs in the WLL system.