F3200/NDU AS4428.1 Installation Manual
Document No: LT0255
System Specifications
Page 3-14
5 July 2016
Issue 1.22
MAF/PSU INPUTS (CONTINUED)
Load Resistance
400 Ohm - 10k Ohm
(Load Mode)
less than 400 Ohm with series diode at load.
14 Ohm absolute minimum.
Anc 3 Supervision
Input Termination
Output terminals BELLS +, -
Form
Reverse polarity - requires series diode at each device
Resistor EOL
End of Line
No. of
Circuits
Type
1
3k3, 5%, 250mW resistor
2
6k8, 5%, 250mW resistor
3
10k, 5%, 250mW resistor
Supervision Current
0mA @ +5V, 1.5mA @ 0V, +ve to BELLS- terminal
Circuit Resistance
100 Ohm max.
3.4.3
CONTROLLER/DISPLAY INPUTS
Spare DC Input/Output
24Vdc nom
Demountable screw terminal, 4 way, J5
Spare Input
22V, 10k Ohm pull up resistor
Provision for supervision (up to 5 band)
Spare Inputs IP0, 1, 2
Unsupervised
(not fitted)
Cabinet internal use only
+5V, 100k pull up resistor
10 Way FRC header, J10
Serial I/O
RZDU Refer Section 3.5.3; Others 3.5.2
3.4.4
8 RELAY MODULE SUPERVISION
Form
Load monitoring
Relay Off
Relay On
Expects
Resistance to 0V
Voltage Present
Selected By
Minijump link on PCB & programming of FIP
Default Programming
Supervised
Load Resistance
400 Ohm - 10k Ohm
Less than 400 Ohm with series diode at load
14 Ohm absolute minimum
Voltage Threshold
3.65V nom.
Supervision Current
0mA @ +5V, 1mA @ 0V
