Specifications

A.4 DECconcentrator 900MX
A–6 FDDI Configuration Capabilities
A.4 DECconcentrator 900MX
The DECconcentrator 900MX is an eight-port FDDI concentrator (six front panel
ports and two backplane ports). The two backplane ports (see Figure A–3) attach to a
DEChub 900 MultiSwitch backplane or to a DEChub ONE-MX docking station that
supports ModPMDs.
A.4.1 Port Assignments
Port 1 can be configured as either an A or M port and Port 6 can be configured as
either a B, S, or M port. Ports 2 to 5 are always M ports. The two backplane ports
(ports 7 and 8) are also software configurable using MultiChassis Manager or the
Setup Port menu.
Figure A–3 DECconcentrator 900MX Port Configuration Capabilities
Front Panel Ports
LKG-10066-96F
Backplane Ports DEChub ONE-MX ModPMD Ports
Front Panel Ports
A/M B/S
A/M M B/S/M
DECconcentrator 900MX
MMM
123456
78
A/M B/S
A/M M B/S/M
DECconcentrator 900MX
MMM
123456
78