NA-1301 Network Appliance Server Hardware Installation Guide
2.1.2 Jumper
Settings
Making the proper jumper settings configures the main board to match the needs of your application.
The following summary table lists all onboard jumpers and their corresponding functions and/or default
settings.
Jumper Default
Setting Jumper
Setting
JP1
Com 2 RS232 Setting
Short
3-5,4-6
JP2
Com 2 RS232 Setting
Short
3-5,4-6
JP3
Com 2 RS232 Setting
Short 1-2
JP7
CMOS Clear Jumper: Normal Mode
Short 2-3
JP10
W atchdog Trigger Mode: Disabled
Open
JP12
PICMG Bus Mode Setting
Open
JP13
PICMG Bus Mode Setting
Open
2.1.2.1 COM2 RS232/422/485 Settings: JP1,JP2,JP3
COM2
JP1 JP2 JP3
RS-232
(default)
Short 3-5,4-6
Short 3-5,4-6
Short 1-2
RS-422
Short 1-3,2-4
Short 1-3,2-4
Short 3-4
RS-485
Short 1-3,2-4
Short 1-3,2-4
Short 5-6,7-8
2.1.2.2 CMOS Clear Jumper: JP7
Options Settings
Clear CMOS
Short 1-2
Normal (default)
Short 2-3
1
2
3
2.1.2.3 Watchdog Trigger Mode Setting: JP10
The watchdog timer is an indispensable feature of the MAINBOARD. It has a sensitive error detection
function and a report function. When the CPU processing comes to a halt, the watchdog either
generates a NMI or resets the CPU.
Options Setting
NMI Short
1-2
RESET Short
2-3
1
2
3
Disabled Open
(default)
2.1.2.4 PICMG Bus Mode and Frequency Settings: JP12/JP13
PICMG
contains two PCI/PCI-X Interfaces. The PCI Interface has a 33/66 -MHz bus speed, and the
PCI-X interface has a 66/100/133-MHz bus speed. The PICMG has maximum allowed device (show
below).
12