IEI Integration ECW-281B_B2-D525 - Manual (Page 47)

ECW-281B/B2-D525 Embedded System
Page 34
4.2.4.1 Jumpers
NOTE:
A jumper is a metal bridge used to close
an electrical circuit. It consists of two or
three 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.
Figure 4-2: Jumpers
The WAFER-PV-D5252 motherboard has several onboard jumpers (
765
Table 4-2 ).
Description Label Type
Clear CMOS J_CMOS1 3-pin header
CompactFlash® master/slave selection JCF1 2-pin header
COM2 RS-232/422/485 selection JP1 8-pin header
COM1 pin-9 voltage selection JP2 6-pin header
Table 4-2: Jumpers