Motorola MCS 2000 Service Instructions Manual page 239

Glossary
This glossary contains an alphabetical listing of terms and their definitions that are applicable to
MCS portable and mobile subscriber radio products. All terms do not necessarily apply to all radios,
and some terms are merely generic in nature.
Term
ALC
ASF IC
DPL
firmware
FLASHport™
hardware
IF SEL
IM
LSH
message time-out
timer
MRTI
NF
OMPAC
OSW
Automatic level control; a circuit in the transmit RF path that controls RF
power amplifier output, provides levelling over frequency and voltage,
and protects against high vswr.
Audio signalling filter integrated circuit.
Digital Private-Line™.
Software or a software/hardware combination of computer programs
and data, with a fixed logic configuration stored in a read-only memory;
information can not be altered or reprogrammed.
A Motorola term that describes the ability of a radio to change memory.
Every FLASHport radio contains a FLASHport EEPROM memory chip
that have software written and rewritten to, again and again.
Physical equipment used in data processing.
I-F select line; it activates the I-F module when low.
Intermodulation; unwanted frequencies produced in the mixer.
Low speed handshake; digital data sent to the radio during trunked
operation at 150 baud while receiving modulation.
A timer in the system central controller that maintains a channel
allocation for calling parties (The timer may be programmed to time out
the channel allocation within 0 to 6 seconds after dekey).
Microprocessor Radio-Telephone Interconnect; a Motorola system that
provides a repeater connection to the telephone network (The MRTI
allows the radio to access the telephone network when the proper
access code is received).
Noise Figure; is a ratio of total noise power at the output to the input
noise power.
Acronym for Over-Molded Pad Array Carrier, a Motorola custom
package, distinguished by the presence of solder balls on the bottom
pads.
Outbound signalling word; central controller transmissions to radios in
the field.
Definition
Glossary