Transceiver Unit description
The CS90 Transceiver Unit is provided to transmit acoustic energy through water. This transmission and reception are commonly referred to as a ping. After each transmission, the transceiver receives the echoes from the targets in the water and/or the seabed. These echoes are filtered and amplified and then converted into digital format.
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The CS90 Transceiver Unit is normally located in the sonar room. It is mounted on the bulkhead using powerful shock absorbers. The physical distance to the hull unit is limited by the length of the transducer cables.
The Transceiver Unit controls the transmission and reception made by the 480 transmitters and 480 receiver channels. 16 identical transceiver boards are used. The Transceiver Unit also holds an Ethernet switch and a large capacitor bank. A dedicated Power Supply Unit is provided to supply the required DC voltages to the Transceiver Unit.
A high quality Ethernet cable is used for communication with the Processor Unit on the bridge. Another high quality Ethernet cable is used to connect the Transceiver Unit to the Motor Control Unit on the hull unit. A third Ethernet cable connects the Transceiver Unit to the Power Supply Unit.
Tip
Installing a second Ethernet cable to the Processor Unit is recommended. One cable is for operational use, while the other is spare.
The transducer cables are plugged into the side wall of the transceiver cabinet using a special connector. The connectors for power and interfaces are located at the bottom of the cabinet.
Note
To extend the lifetime of the CS90 Transceiver Unit, it must be mounted at dry and clean location with sufficient ventilation. Observe the sonar room requirements
The Transceiver Unit is fitted with a commercial heat exchanger. The purpose of the heat exchanger is to provide a stable, clean and temperature controlled environment for the electronic circuitry inside the Transceiver Unit. The heat exchanger also inhibits dust and dirt particles from entering the Transceiver Unit. The heat exchanger is powered from 230 VAC using a separate outlet.