Instruction manual

Chapter 2 Installation 23
Clear CMOS (J4)
You can use J4 to clear the CMOS data if necessary. To reset the
CMOS data, set J4 to 2-3 closed for just a few seconds, and then
move the jumper back to 1-2 closed.
Clear CMOS (J4)
Protect* Clear CMOS
J4
*default
1 3 5
2 4 6
1 3 5
2 4 6
1 3 5
2 4 6
1 3 5
2 4 6
1 3 5
2 4 6
1 3 5
2 4 6
COM3/COM4 RI pin voltage select
(J5, J6)
The 9th pin of COM3 and COM4 (9-pin D-sub connector) can be
selected as RI, +5V, or +12V by setting J5 & J6.
COM3 RI pin setting (J5)
RI* +5V +12V
J5
COM4 RI pin setting (J6)
RI * +5V +12V
J6
*default
1
2
3
1
2
3