Alarm And Psax 4500 Alarm Module Alarm Connector Configuration - Lucent Technologies PacketStar User Manual

®
PSAX 4500 Alarm Module User Guide, Issue 1
PacketStar
255-700-598
ALARM Connector 26-pin
1 NO
Audible Alarm
2 COM Critical
13 NC (Normally Energized
No Alarm)
3 NO
Audible Alarm
4 COM
Major
14 NC
5 NO
Audible Alarm
6 COM
Minor
15 NC
Visible Alarm
7 NO
Critical
8 COM
(Normally Energized
16 NC
No Alarm)
9 NO
Visible Alarm
10 COM
Major
17
NC
11
NO
Visible Alarm
12
COM
Minor
18 NC
20 +BAT RTN
IN
23
24
+BAT
26 GND
RTN
19
21
Not Used
22
23
Figure 2-3. Alarm and PSAX 4500 Alarm Module ALARM Connector
Configuration
To allow flexibility in connecting the module to the external alarm panel:
• The Major and Minor alarm relays are energized only when an appropriate
alarm condition occurs.
• The Critical alarm relays are normally energized when no alarms are
reported. When a Critical alarm is reported or power fails, the relays are
de-energized, causing contacts to change positions and in turn causing the
CO alarms to be activated.
Figure 2-4 illustrates how the 4500 Alarm module might be connected to a
CO alarm panel.
• Diagram A shows an unalarmed condition.
• Diagram B shows an alarmed condition.
Chapter 2 Module Description
1 NC
2 COM
-OR-
13 NO
7 NC
8 COM
-OR-
NO
16
Vdc
Remote Alarm
Cutoff
-BAT
(-48Vdc)
NO - Normally Open
NC - Normally Closed
COM - Common
BAT RTN - Battery Return
Functional Description
Audible Alarm
Critical
(Power Lost
Alarm Generated)
Visible Alarm
Critical
(Power Lost
Alarm Generated)
Release 10.0.0
2-5