Motorola MTR2000 T5544 Instruction / Field Service Manual page 39

F to H
I to L
xxxvi
Failsoft Trunked station mode entered when central controller fails.
FFSK Fast FSK
FM Frequency Modulation
FRU Field Replaceable Unit.
FSK Frequency Shift Keying
GPI General Purpose Input.
GPO General Purpose Output.
HLGT High Level Guard Tone
IC Integrated Circuit
i-f intermediate frequency
I/O Input or Output
IRB Inbound Recovery Board used with the Trunking Controller
IRQ Interrupt Request.
ISW Inbound Signalling Word, data packet transmitted on the inbound Trunking con-
trol channel by the subscriber unit when requesting channel allocation.
LLGT Low Level Guard Tone
68P81096E30-F 08/06/07