
Jumper Block Locations
J
UMPER
S
UMMARY
Table 5: Jumper Summary South Board
Jumper
Block
Description
As
Shipped
Page
VS1
CMOS RAM and Real Time Clock Erase
Normal
Operation
Erase
Note! Do not operate the board with the jumper in the erase position. Leave the
jumper in position VS1[1-2] for at least 30 seconds to fully erase CMOS RAM.
Normal 23
VS2[1-2]
System BIOS Selector
In
— Primary System BIOS
Out — Secondary System BIOS
Note! The secondary System BIOS is field upgradable using the BIOS upgrade utility.
See www.versalogic.com/private/jaguarsupport.asp for further information.
In —
VS2[3-4]
Video BIOS Selector
In
— Primary Video BIOS
Out — Secondary Video BIOS
Note! The secondary System BIOS is field upgradable using the BIOS upgrade utility.
See www.versalogic.com/private/jaguarsupport.asp for further information.
In —
VS2[5-6]
General Purpose Jumper
In
— Bit D1 in SCR register 00E2h reads as 1
Out — Bit D1 in SCR register 00E2h reads as 0
In 43
VS3
COM2 Configuration
RS-485
RS-485
RS-232
RS-422
Endpoint Station Intermediate Station
RS-232 25
EPM-CPU-10 Reference Manual
Reference – 17