Contec SPI-8451-LLVA, SPI-8451-LVA, SPI-8452-LLVA RS-422/485 Terminator: JP2 , Clear CMOS Content: JBAT1

4. Jumper Setting
38 SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA
RS-422/485 Terminator: JP2
Table 4.3. RS-422/485 Terminator (JP2)
JP2 Terminator
---
CTS for RS-422
RTS for RS-422
RXD for RS-422/485
TXD for RS-422/485
Function
Terminating resisiter provided
Terminating resisiter provided
Terminating resisiter provided
Terminating resisiter provided
No terminating resister
(Default)
10 2
91
9
10 2
1
9
10 2
1
9
10 2
1
9
10 2
1
Clear CMOS Content: JBAT1
The time, date, and CMOS values can be specified in the Setup program. The CMOS values can be
returned to their defaults by using the Setup program. The RAM data contains the password information
is powered by the onboard battery. User can erase the CMOS memory content by short pin2 and pin3 of
JBAT1.
Table 4.4. Clear CMOS Content (JBAT1)
JBAT1 Function
Normal Operation(Default)
Clear CMOS Content
3
2
1
3
2
1