
TransceiverUnitassembly
AbouttheTransceiverUnit
ThissectionprovidesageneraldescriptionoftheTransceiverUnit.
Topics
•TransceiverUnitpurposeonpage65
•TransceiverUnitpartsidenticationonpage65
TransceiverUnitpurpose
Thetransceiverperformsthesignalprocessinganddigitalbeamformingofthe
transmitterandreceiverchannels.
TheMS70TransceiverUnitishousedina19”instrumentrack.
Inordertoreducethelossinthetransducercables,thetransceiverisphysicallylocated
ascloseaspossibletothetransducerarray.
Themaincomponentsinthetransceiverare:
•3eaTRXUTransceiversubracks
•6eaTRCBeamformingcomputers
•1eaEthernetswitch
•Cabinetfanunit
ThepurposeoftheSimradMS70TransceiverUnitisto:
•Transmissionparameterdistribution
•Transmissiontriggering
•Audiotransmission
•Audioreception
•Analoguetodigitalconversion
•Beamforming
•Transmissionandreceptionstabilizing
TransceiverUnitpartsidentication
ThissectionprovidesagenericoverviewoftheTransceiverUnit.
EasyaccesstothefrontandrearpartoftheTransceiverUnitisessential,asthisallows
foreasyreplacementofparts.
Linereplaceableunits
ThefollowingunitshavebeendenedaslinereplaceableunitsintheTransceiverUnit.
•TRX32Receiverboards
•SMSDriverboards
•TRXRIOboards
•Capacitormodule
•Ethernetswitch
331549/B
65
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