MAIN Board For Nihon Kohden BSM 4101,4100

MAIN BOARD FOR PATIENT MONITOR NIHON KOHDEN BSM-4101,4100

The MAIN board consists of system control block, Display control block, recorder control block and power control block

The system control block has the host CPU which gets the operation key status, display the waveforms and  and numeric data and controls the recorder unit indirectly. The program is stored in the 2 MB system ROM for host CPU, 128 KB Boot ROM in the system control block, 1 BM system ROM for local CPU in the recorder control block.

When the instrument is turned on, the host CPU executes the program in the Boot ROM. According to the program,  the CPU checks if the program card is inserted into the slot on the MAIN board. When the host CPU recognizes that the correct program card is inserted, the host CPU writes the program from the card to each system ROM. This is called Boot. Therefore, this Boot system allows you to upgrade the instrument without opeming it. On the Other hand, when the program card is not inserted inti the slot, the host CPU switches from the Boot ROM to the system ROM in the system control block and executes the system program

 Shipping Fedex, DHL, TNT, UPS, EM