RAD Data comm ASMI-450 Especificaciones descargar pdf (Pagina 59)

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).

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 132 133

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RAD Data comm ASMI-450 Especificaciones Pagina 59