1747-6.22, Backup Scanner User Manual

214 Glossary
Publication 1747-6.22
SLC Chassis − A physical SLC rack that houses SLC processors and
1746 and 1747 I/O modules.
SLC Processor − The processor that controls the SLC chassis in
which the scanner is installed.
Slot − The physical location in any SLC chassis used to insert I/O
modules.
Specialty I/O Module − An I/O module other than a discrete I/O
module (e.g., an analog module).
System Status Word (SSW) − This word is M1:s.3400 (where s=slot
number of BSN and is used to monitor the status of the entire backup
system.