Specifications

Functional Description
RADring
Installation & Operation Manual
2-28 RI/RO Modules Functional Description 3/11/98 12:33
TCR Functions
The diagram presented in this section shows the basic applications of the
TCR. The TCR repeater can be switched to either Ring-In or Ring-Out. The
Ring-Out repeater provides retiming regeneration and jitter reduction on the
main path, and the Ring-In repeater provides the same on the back-up path.
In the application diagrams below, RADring hubs located at distant sites are
interconnected by the ring segment, terminated by TCR repeaters.
In Figure 2-19, the TCR connected at the RO port of the RADring receives
the main path ring signal, recovers its timing and then regenerates a clean
retimed signal. In addition, the TCR also performs jitter attenuation. Lower
jitter increases the maximum number of stations that can be connected to
the ring.
Figure 2-19 TCR Ring Segment and Functional Diagram
The TCR provides the same functions for the back-up path. The repeater
serving the back-up path is included in the TCR configured as Ring In.
Note
Pin numbers define DB-9 pinout for STP.
Pin numbers in brackets define pin numbers for RJ-45 (UTP).