Zhone Technologies IMACS Network Device - Manual (Page 66)

Zhone Technologies, Inc. IMACS Product Book, Version 4
March 2001 Page 62
Software-initiated diagnostics supported on the DS0-DP/G.703 card include the setting of local loop backs towards
either the network or the attached DTE equipment. In addition, a remote loop back function allows the DS0-
DP/G.703 card to generate four DDS-compatible latching loop back codes for the far-end OCU, CSU, DSU or DS0-
DP equipment respectively. A time-out option authorizes the DS0-DP/G.703 port to automatically release the loop
back after ten minutes.
7. BnR IP Concentrator Card
The 822860 BnR IP Concentrator card provides a means of concentrating network management data from up to 8
remote IMACS onto a single asynchronous SLIP link for connection to a NMS. Essentially the 822860 takes IP
management data from the 8 B7R-formatted DSOs and concentrates it onto a single, asynchronous SLIP line which
can then be connected to an asynchronous terminal server for connection to a LAN-based NMS.
Management information from remote IMACS systems can be directed to the IMACS containing the 822860 over
the Facilities Data Link (FDL) or an ESF T1 link as shown in Figure 19. FDL is a 4 Kbps channel normally used to
manage the T1 link. When the FDL is used to carry IMACS management data it is no longer able to carry T1
management data as well.
Terminal Server
4Kbps
FDL
38.4Kbps
T1
NMS
Up to 8 DS0s
DACS
IMACS
IMACS
IMACS
IMACS
IMACS
IMACS
IMACS
IMACS
IMACS
Figure 19 - IMACS Using the 822860 For Network Management