User Manual

Table Of Contents
System Description RF-Orchestra!™ Transmitter Installation and Operation
2-4 6880493G02-C July 2000
RF-A! Receivers
The RF-A! receivers return messages transmitted by the subscriber pagers to the RF-C!
controller. RF-A! receivers funnel their output through a multiplexer that provides a single
link back to the RF-C! controller. RF-A! receivers may be stand-alone or co-located with a
transmitter.
Pagers
Pagers are miniature radios that initiate and accept messages to and from the transmitter.
ReFLEX protocol pagers receive text messages, and InFLEXion protocol pagers receive voice
messages. Both ReFLEX and InFLEXion pagers provide return acknowledgments when a
message is accurately received and when the subscriber accesses the message. Some ReFLEX
pagers can initiate messages.
Note: Pagers are known by different names, depending on the particular region [for example,
communicators, personal messaging units (PMUs), personal communications devices
(PCDs), or subscriber units (SU)].