BBG-2572
Marine Navigation Interface
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Card Layout 
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Input signal requirements: · NMEA 0183 serial heading data. ($HEHDT) · NMEA 0183 serial roll and pitch. ($PPPRP) · NMEA 0183 serial speed. ($GPVTG) |
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Overview
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As discussed earlier the BBG-2572 accepts NMEA data from the SR-2100 compass and transmits synchro signals out. This interface has four (4) circuit cards that operate independent of each other. The operation of these cards is as follows.
· Circuit card #1 is designated for heading only. This card receives serial data from the SR-2100 and converts it to 1X and 36X 115VAC/400HZ synchro output at 4.5VA. The outputs of this card are fuse protected at the maximum output power of 63ma. Outputs are connected via terminal block to the synchro signal amplifier. · Circuit card #2 is designated for roll only. This card receives serial data from the SR-2100 and converts it to 2X and 36X 115VAC/400HZ synchro output at 4.5VA. The outputs of this card are fuse protected at the maximum output at 63ma. Outputs are connected via terminal block to the synchro signal amplifier · Circuit card #3 is designated for pitch only. This card receives serial data from the SR-2100 and converts it to 2X and 36X 115VAC/400HZ synchro output at 4.5VA. The outputs of this card are fuse protected at the maximum output power of 63ma. Outputs are connected via terminal block to the synchro signal amplifier. · Circuit card #4 is designated for speed only. This card receives serial data from the GPS in the $VTG sentence format. This is then converted to 1X 115VAC/400HZ synchro output at 4.5VA. The outputs of this card are fused at a maximum output power of 63ma. Outputs are connected via terminal block to the equipment that requires it. The 1X output represents 40 knot speed. |