User`s guide

Introduction
7
1.3.3 Drive Carrier Modules
Please refer to separate installation guide for device specific information.
1.3.4 Loop Resiliency Circuit Input/Output Module (FC)
Please refer to separate installation guide for details. (SS-1200-FCAL LRC I/O Module Installation Guide).
The FC-AL Backplane incorporates two independent loops formed by Port Bypass Circuits within the Loop
Resiliency Circuit (LRC) I/O modules. The LRC I/O module is shown in Figure 1–11.
The enclosure may obviously be configured with either 1 or 2 modules. If only 1 module is fitted this Must be
installed in middle Bay 3/2 as the Device ID thumbwheel switches only operate in this bay.
(Please refer to the separate LRC I/O module installation guide for details of the thumbwheel switches.
Figure 1–10 Drive Carrier Module
Figure 1–11 FC-AL LRC I/O Module