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Glossary
RMCU ~ RGLU
Strata DK Programming 5/99 GL-9
Glossary
RMCU Enhanced 911 (E911) CAMA Trunk Direct Interface—Enables connection from the
DK424 (Release 4.0 and above) to E911 locator services without third-party
equipment. The RMCU supports two subassemblies (RCMS) that provide a total of
up to four ports.
RCCB Conduit Connection Box—Device required for floor-mounted systems with three or
more cabinets to connect AC power and reserve power battery cabling to the
system. Cabling from the AC power source and from the reserve power battery
source can only be installed by a licensed electrician.
RCIU2/RCIS Four-circuit plug-in PCB/four-circuit piggy-back PCB, each of which receives and
decodes FSK Caller ID (CLID or CND) information from the Central Office ground
or loops Caller ID lines. Each RCIU/RCIS circuit works in conjunction with a
DK424 RGLU/RCOU/RCOS line PCB circuit.
RCOS Loop Start CO Line Interface Subassembly—Optional subassembly that attaches to
the RCOU PCB to provide four additional CO analog line circuits to the PCB.
Supports Caller ID when used with RCIU/RCIS circuits.
RCOU CO Line Interface Unit—An optional PCB that provides the system with four loop
start CO lines. An optional RCOS subassembly can be attached to the RCOU for
four more loop start analog CO lines. Supports Caller ID when used with RCIU/
RCIS circuits.
RCTU Common Control Unit—The system’s controller PCB that contains the system's
main microprocessor and microprocessor bus, ROM, RAM, time switch logic, busy
tone detectors, system tones and MOH/BGM Interface. RCTUs include: RCTUA,
RCTUB, RCTUBA/BB, RCTUC/D, and RCTUE/F. Each RCTU supports different
station and line capacities. The RCTU PCBs also provide interface for the optional
RRCS PCB and RKYS key.
RDDU Direct Inward Dialing Interface Unit—Optional PCB that provides four analog
Direct Inward Dialing line circuits. Supports ANI and DNIS.
RDSU Digital/Standard Telephone Interface Unit—Optional PCB that provides two
standard telephone and four digital telephone circuits in its basic configuration. An
RSTS can be attached to the RDSU for two additional standard telephone circuits.
RDTU T1/DS-1 Interface Unit—Optional PCB that provides up to 24-digital channels that
can individually be assigned for loop start CO line, ground start CO line, E & M tie
line, or DID line operation. Supports ANI and DNIS.
REMU E & M Tie Line Unit—An optional PCB that provides the system with support for
four E & M Type I or Type II, Immediate or Wink Start tie lines. Supports ANI and
DNIS.
RFIF Floor Mount Installation Kit—Kit that is used to floor mount systems.
RGLU Analog Ground/Loop Start CO Line Interface Unit—Provides four CO line circuits
that can be individually configured for loop start or ground start CO line operation.
Supports Caller ID when used with RCIU/RCIS circuits.
Term Definition