SmartAlarm Instruction Manual Rev 2
Page 12 of 115
Input Isolation
All signal inputs are optically isolated for use in harsh electrical environments.
Bi-Polar Inputs
All signal inputs are bi-polar and therefore capable of accepting AC or DC
voltages.
Standard Input Version
The standard version uses a fully is24VDC supply as a signal voltage,
(fused at 160mA), which can be fed via a normally open (N/O) or normally
closed (N/C) field contact to trigger each alarm as required.
Optional Powered Input Versions
As an alternative Customer powered Inputs can be used:-
Option D = 24VAC/DC & 125VAC/DC or
Option E = 48VAC/DC & 250VAC/DC.
The signal supply voltage level must be specified at the time of order to
ensure the correct type alarm card is supplied.
Integral Pushbuttons
Four Integral Tactile Pushbuttons are provided as standard designated as
Test, Mute, Ack., (Acknowledge), and Reset.
Customer Terminals
Industry standard rising clamp terminals capable of accepting up to 2.5mm sq
cable are provided for customer use on the rear of the annunciator and each
terminal is held in place by retaining screws located at the top and bottom of
each terminal block for additional security.
+VE
-VE
a
b
-VE
+VE
NO
C
NC
+VFC
PS2
PS2
RLY
PS1
WD
OVCHI
OVCLO
+VB
X2
X1
a
HNB
GPB
GPA
b
a
b
b
a
HNA
b
a
PB2
PB1
PB3
PB4
PB5
a
+VFC
IP3
IP1
IP2
b
b
a
a
b
RL7
RL3
RL4
RL8
RL2
RL6
a
b
X3
RL1
RL5
a
+VFC
IP7
IP8
IP5
IP6
b
b
a
a
b
a
b
X4
IP4
LOCKING
SCREWS
Typical Annunciator Rear View
