Zhone Technologies 900 - Manual (Page 77)

Data Cards IMACS System Release 5.1.6 2-11
SRU Card SRU Card User Screens and Settings
Note that loop-up and loop-down commands cannot be implemented for two ports of the same
card simultaneously. You must finish all loopback operations on one port before attempting
them on another port.
Figure 2-6. Inband Remote SRU Loopback
Figure 2-7. Inband Remote CSU Loopback
Figure 2-8. Inband Remote DSU Loopback
OCU-DP Card SRU Card
CSU DSU
Local
DTE
Remote
DTE
Carrier's DDS
Network
Local System
Local Site Remote Site
Remote System
OCU-DP Card SRU Card
CSU DSU
Remote
DTE
Local
DTE
Carrier's DDS
Network
Local System
Local Site Remote Site
Remote System
OCU-DP Card SRU Card
CSU DSU
Local
DTE
Remote
DTE
Carrier's DDS
Network
Local System
Local Site Remote Site
Remote System