Epson DM-M820, Technical Reference Manual, Page: 287 / 324

Rev. I Jumper Settings A-1
MR Series Technical Reference Manual
Appendix A
Jumper Settings
IM-800 Jumper Settings
The jumper settings for the IM-800 are as follows:
*1 To clear the CMOS RAM, short 2-3 more than 5 seconds with the power turned off and then return the jumper to
the default setting.
2.5”HDD Jumper Settings
When connecting two 2.5”HDDs, one is Master and the other is Slave.
Set Master/Slave by the jumper of the HDD.
As for the procedure, see "HDD".
Example: For the Hitach Travelstar
PCB Jumper Function Setting
Main control
board JP10 Clearing the CMOS
RAM 1-2: Normal (default)
2-3: Clear the CMOS RAM
*1
JP15 Setting the serial IRQ
for the PCI slot 1-2: Does not connect the serial IRQ to PCI slot
2-3: Connects the serial IRQ to PCI slot (default)
COM board JP1 Setting pin 1 of the
COM4 port 1-2: DCD signal (default)
3-4: +5V power supply
5-6: +12V power supply
JP2 Setting pin 1 of the
COM3 port 1-2: DCD signal (default)
3-4: +5V power supply
5-6: +12V power supply
PIN1
Master
Slave