User Manual

AS4000 Subscriber Terminal
Installation and Commissioning
DLP 009
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 11 of 18
h) External Alarm Monitoring
The customer can connect an external alarm to the modular and monitored at a
Sitespan location. The external alarm connects to the TB1 Connection Block.
The block should be wired to suit the incoming alarm condition.
5 4 3 2 1
Earth
Sense I/P 0V in -ve
N/C
Sense I/P +ve 3-20V
Phantom Power
TB1
Figure 56. Alarm Connections
i) Open Door Alarm
The door alarm cable is connected to socket P2 on the PCB.
8. Fusing and front panel alarms
External Fuse
10A 1.25 Slow Blow
Battery Fuse
10A 1.25 Quick Blow
MU1 Fuse
3A 20mm Slow Blow
MU2 Fuse
3A 20mm Slow Blow
MU3 Fuse
3A 20mm Slow Blow
MU4 Fuse
3A 20mm Slow Blow
MU1 MU2
MU3
MU4
EXT
Alarm
Low
Batt
On
Batt
SK1
Cover
Fastener
Cover
Fastener
Figure 57. Fusing and front panel alarms