1 Connector to unit
2 Camera input 1 - red cable
3 Camera input 2 - green cable
4 NMEA 0183 RX_B (orange)
5 NMEA 0183 RX_A (green)
6 NMEA 0183 TX_B (blue)
7 NMEA 0183 TX_A (yellow)
Talkers and Listeners
Do not connect multiple devices outputting data (Talkers) on to any serial input (RX) of the
unit. The RS422 protocol is not intended for this type of connection, and data will be
corrupted if more than one device transmits simultaneously. The output (TX) however may
drive multiple receivers (Listeners). The number of receivers is finite, and depends on the
receiving hardware. Typically three devices is possible.
CZone connection to NMEA 2000
When interfacing to CZone network it is recommended to use a BEP Network interface
bridge to join the two network backbones together.
The CZone / NMEA 2000 Network interface bridge isolates the power of the two networks,
but allows data to be freely shared between both sides.
The Interface Bridge can also be used for expansion of the NMEA 2000 network, when the
maximum node limit (node = any device connected to network) for the network has been
reached or the maximum cable length of 150 m will be exceeded. Once an Interface Bridge
has been fitted, a further 40 nodes and additional cable length can be added.
The Network Interface is available from your BEP dealer.
Transducer connection
The unit has internal CHIRP, Broadband, StructureScan, TotalScan and ForwardScan sonar.
There are two 9-pin transducer connectors on the rear of the unit. Traditional 50/200 Khz,
CHIRP and HDI transducers can be connected to Sonar1 (Blue nut) or Sonar2 (black nut).
TotalScan, StructureScan and ForwardScan must be connected to Sonar2. For connector
location, refer to the embossed labeling on the back of the unit or the section "Rear connections"
on page 10.
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Note: The connector attached to the transducer cable is keyed, and can only be inserted
in one orientation. Once inserted, turn locking collar to secure.
Wiring | NSS evo3 Installation Manual
21
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