User manual

Page 45
PPC-5170GS Flat Panel PC
NOTE:
A jumper is a metal bridge that is used to close an electrical circuit. It consists
of two metal pins and a small metal clip (often protected by a plastic cover)
that slides over the pins to connect them. To CLOSE/SHORT a jumper means
connecting the pins of the jumper with the plastic clip and to OPEN a jumper
means removing the plastic clip from a jumper.
The POS-8520 comes with fifteen jumpers (Table 3-1).
Jumper Type Label
Clear CMOS Setup 3-pin header JP1
COM# RI and Voltage Selection 3-pin header
JP6
JP7
JP8
JP9
JP13
JP14
JP15
JP16
12-pin header JP10
COM2 RS-232/422/485 Setup
6-pin header JP20
CompactFlash Card Setup 2-pin header JP12
CPU Voltage Setting 10-pin header S3
Keyboard/Mouse Power Source 3-pin header JP18
LCD Voltage Select 6-pin header JP2
Table 3-1: Onboard Jumpers
3.5.1 Remove the Back Cover
The back cover is secured to the chassis with thirteen retention screws, eleven on the rear
panel and two on the bottom panel (Figure 3-1). Remove the thirteen retention screws
and lift the cover off the PPC-5170.