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Physical Details
VL-EPIC-25 Reference Manual
21
J
UMPER
S
UMMARY
Table 3: Jumper Summary
Jumper
Block
Description
As
Shipped
Page
V1[1-2-3]
Factory Use Only.
Jumper may be installed or removed.
V1[1-2] In
—
V2[1-2]
SPI Flash Write-Protect
In
– Writable
Out
– Write Protected
In
33
V3[1-2-3]
Real-Time Clock (RTC) Reset
[1-2] In
– Normal operation (jumper storage)
[2-3] In
– Reset RTC
[1-2] In
25
V4[1-2]
COM0 configuration
In
— RS-485 (Rx endpoint termination)
Out
— RS-232
Out
31
V4[3-4]
COM1 configuration
In
— RS-485 (Rx endpoint termination)
Out
— RS-232
Out
31
V4[5-6]
COM2 configuration
In
— RS-485 (Rx endpoint termination)
Out
— RS-232
Out
31
V4[7-8]
COM3 configuration
In
— RS-485 (Rx endpoint termination)
Out
— RS-232
Out
31
V5[1-2]
BIOS Select
In
— Secondary BIOS
Out
— Primary BIOS
Out
59
V5[3-4]
General Purpose Input Bit 1
In
— Bit D7 in GPI register reads as 1
Out
— Bit D7 in GPI register reads as 0
In
59
V6[1-2]
Clear Non-volatile RAM (NVRAM)
In
— Resets BIOS settings to factory defaults.
Out
— Normal
Out
25
V7[1-2]
Factory Use Only
—
Jumper must not be installed.
Out
—