Description
MRC
PC-25004
I/O SW BOARD
232-620.0004
AUTOMATIC TELEPHONE SYSTEM
I/O PCB
N1103
The MRC PC-25004 (232-620.0004) is an I/O SW board for a shipboard automatic telephone system, forming part of the vessel’s marine control and communications equipment. Designated as an I/O PCB and marked N1103, it is the input/output switch board within the telephone exchange electronics. The automatic telephone system carries internal calls between the bridge, engine control room, cargo control and accommodation, so a faulty board can take extensions out of service. A spare board allows that section of the exchange to be brought back into use after a fault. It is offered in used condition.
Key Features
✓ Model PC-25004 I/O SW board
✓ Board number 232-620.0004
✓ Built for automatic telephone systems
✓ I/O PCB designation
✓ Marked N1103
Marine Applications
✓ Bridge to engine control room telephone links
✓ Accommodation and cabin extension networks
✓ Cargo control room internal calls
✓ Internal exchange I/O board servicing
Technical Support
Prota Marine provides technical support, repair and onboard installation for the I/O SW board and the wider marine control system. Fault diagnosis covers the automatic telephone exchange and its board faults, and commissioning support is given once the board is back in service.
