FDDI Modules for the MMAC-FNB
Introduction
FDM
1-2
Management Module Guide
FNB. The FDMMIM provides SMT/SNMP management of other FDDI
modules (FDCMIM-04 and FDCMIM-08) in the same MMAC chassis.
FDMMIM-04 (FDDI Management Media Interface Module)
The FDMMIM is an Ethernet to FDDI bridge and a four port concentrator on
a single module. The FDMMIM-04 provides all the functionality of the
FDMMIM with four additional master (“M”) ports for connecting to other
FDDI devices.
FDCMIM-04
FDCMIM-08 (FDDI Concentrator Media Interface Modules)
The FDCMIM-04 and FDCMIM-08 provide four and eight concentrator “M”
ports respectively. These modules provide additional FDDI connections when
inserted to the left of and adjacent to the FDM module in the MMAC-FNB
chassis. The FDC modules provide no management functions. The FDC
modules communicate with an FDM through the FNB. Although the FDC
modules can work independently of the FDM, the FDM is required to provide
a connection to the FDDI dual counter-rotating ring and to provide
management functions. Figure 1-1 shows a representation of an Ethernet to
FDDI bridge.