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