em-trak B923

AIS Class B923 Transponder

AIS Class B B923 Transponder has an integrated VHF antenna splitter which enables the transceiver to share your existing VHF antenna without any loss of performance. With built-in intelligent connectivity, integrated next-generation GPS receiver & antenna and the unique FLEXI-FIT® bracket system, safe and secure installation is simple.

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• Peak current – 2A
• Average power consumption (at 12V) – 2.9W
• Galvanic isolation – NMEA 0183 inputs only, NMEA 2000, VHF antenna port

CONNECTORS

• VHF antenna – SO-239
• VHF radio – SO-239
• GNSS – TNC
• Power/NMEA 0183/silent mode – 12 way circular multipole
• NMEA 2000 – 5 way Micro-C connector
• USB – USB Micro-B

DATA INTERFACES

• NMEA 0183 – 2 x bi-directional ports
• NMEA 2000 – NMEA2000 Ed 3.101, LEN=1
• USB – PC virtual com port for NMEA0183 data

STANDARDS COMPLIANCE

• AIS standards – IEC 62287-1 Ed. 3. ITU-R M.1371.5
• Product safety standards – EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013 EN62311:2008
• Environmental standards – IEC 60945 Ed. 4
• Serial data interface standards – IEC 61162-1 Ed 5.0. IEC 61162-2 Ed 1.0
• NMEA 2000 – NMEA 2000 Ed 3.101
• GNSS performance standards – IEC 61108-1 Ed 2.0. IEC 61108-02 Ed 1.0

GNSS

• Systems supported – GPS, GLONASS, BeiDou, Galileo (two of any combination, three including GPS, Galileo)
• Channels – 72
• Internal/external antenna – Internal or optional external antenna
• Time to first fix from cold start – 26s

VHF TRANSCEIVER

• VDL access scheme – CSTDMA
• Operating frequency – 156.025MHz – 162.025MHz
• Channel bandwidth – 25kHz
• Receivers/transmitters – 2 x receivers, 1 x transmitter
• AIS receiver sensitivity (20% PER) – -111dBm
• AIS transmitter power – 2W (+33dBm)

USER INTERFACE

• Indicators – Power, transmit timeout, error, silent mode