User`s guide

5-30
NovaScale R422-E2/R422-INF-E2 Installation and User's Guide
NMI Header
The non-maskable interrupt header is located at
JNMI1. Refer to the table on the right for pin deni-
tions.
NMIButtonPinDenitions
(JF1)
Pin# Denition
1 Control
2 Ground
Internal Buzzer
The Internal Buzzer, located at JSPK1, can be used
to provide audible alarms for various beep codes. See
the table on the right for pin de nitions. Refer to the
layout below for the locations of the Internal Speaker/
Buzzer.
Internal Buzzer
PinDenitions
Pin# Denition
1 Pos. (+) Beep In
2 Neg. (-) Alarm
Speaker
A: NMI Header
B: Internal Speaker