Zhone Technologies IMACS Network Device - Manual (Page 53)

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.