Imacs imacs w/ sru – Zhone Technologies IMACS Network Device User Manual

Page 53

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Zhone Technologies, Inc.

IMACS Product Book, Version 4

March 2001

Page 49




Local
DTE

Remote

DTE

OCU-DP

CSU/DSU

RS232

V.35

T1 carrier
Network

Remote

DTE

Remote

DTE

Synchronous/Asynchronous
DTE. (300bps- 38.4Kbps)

Remote

DTE

IMACS

IMACS w/ SRU

Figure 14 - IMACS With SRU Card Application

The SRU card also supports X.50 division 3, an ITU (CCITT) standard for sub-rate multiplexing. The
maximum bandwidth of the SRU card is 115.2Kbps. The SRU card provides the ability for software
configurable delay optimization. If delay optimization is used on all 10 ports, the maximum bandwidth
available will be 76.8Kbps. Software-initiated diagnostics supported on the SRU card is the same as on the
HSU card. Table 15 describes the SRU card specifications.

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