Overview
35
Director 2/64 Installation Guide
Figure 5: Loopback plug
■
Fiber-optic protective plug—For safety and port transceiver protection,
fiber-optic protective plugs, as shown in
Figure 6
, must be inserted in all
director ports without fiber-optic cables attached. The director is shipped with
protective plugs installed in all ports.
Figure 6: Fiber-Optic protective plug
■
Null modem cable—An asynchronous RS-232 null modem cable, as shown
in
Figure 7
, is required to configure director network addresses and acquire
event log information through the maintenance port. The cable has nine
conductors and DB-9 male and female connectors.