Installation manual

Simrad SP90
102
851-164510 / Rev.E
3 Insert the mains fuses for the Transceiver Unit on the
ship’s mains fuse box.
4 Measure the mains voltage supplied to the Transceiver
Unit.
- Write down the measured voltage here:
Supply voltage (Vac):
5 Check that the voltage selector switches, S201 on the
power supply and S203 on the HV power unit, correspond
to the measured voltage (115 Vac or 230 Vac position).
6 Reinsert the mains input connector P201 on the front of
the power supply.
7 Check that lamps L201 and L202 on the front of the
power supply illuminate.
8 Check that the small LED (Light Emitting Diode) for the
+24 Vdc stand-by power on the Transceiver Interface
Board (TIB) illuminates.
- Refer to the indicator on the front of the power supply.
The +24 Vdc stand-by power is now supplied both to the Hull
Unit and to the connector for the Sonar Interface Unit.