![Nexcom nROK 500 Скачать руководство пользователя страница 22](http://html.mh-extra.com/html/nexcom/nrok-500/nrok-500_user-manual_1681267022.webp)
9
Chapter 3: Jumpers and Connectors
Copyright © 2013 NEXCOM International Co., Ltd. All rights reserved
nROK 500 User Manual
Jumper
A jumper is the simplest kind of electric switch. It consists of two metal
pins and a cap. When setting the jumpers, ensure that the jumper caps are
placed on the correct pins. When the jumper cap is placed on both pins, the
jumper is
short
. If you remove the jumper cap, or place the jumper cap on
just one pin, the jumper is
open
.
Refer to the illustrations below for examples of what the 2-pin and 3-pin
jumpers look like when they are short (on) and open (off).
Two-Pin Jumpers: Open (Left) and Short (Right)
1
2
3
1
2
3
Three-Pin Jumpers: Pins 1 and 2 Are Short