Configuring System Board Jumpers

Before You Begin

Only a qualified technical person should perform the procedures in this section.

CAUTION

Electrostatic discharge (ESD) can damage the system board. Modify the system board only at an ESD workstation. Otherwise, wear an antistatic wrist strap attached to chassis ground.

The system board jumpers enable you to set specific operating parameters for your system. A jumper is a small plastic-encased conductor (shorting plug) that slips over two jumper pins.

The “System board Jumpers” illustration shows the location of the system board jumpers. The “System Board Jumper Configurations” table lists the system board jumpers and their factory default settings.

G

J7B1

1 3

System Board Jumpers

J3J1

9

A

5

B

1

C

J2J1

 

9

D

5

E

1

F

3-24 Configuring Your System

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NEC LC1400 manual Configuring System Board Jumpers