Teo NT1-200 - Manual (Page 9)

Tone Commander NT1-200, NT1-200/296 Battery Backup / NT1-200 Add-on Battery Page 9
Alarm
The alarm modular jack provides two relay contact circuits for alarm monitoring. Make sure that you do not
exceed the relay contact rating of 48 VDC @ 0.5 A (resistive). During AC power loss, pins 2 and 5 are
shorted and pins 3 and 4 are open as shown in Figure 12.
Figure 12 – Alarm (6 Position Modular Jack)
Status Indicators
The Battery Backup has four status indicator LEDs on the front panel.
Status Indicator LED Description
AC Power
(green)
Battery Backup is connected to the rack and the rack is currently being fed
from the power supply.
Charging
(Yellow)
The Battery Backup (and the Add-on Battery, if present) are currently being
charged. Does not light when the rack is on backup power.
Backup Power
(Red)
The rack is currently being powered by the Battery Backup (and the Add-on
Battery, if present).
Overload
(Red)
Too much power is being drawn from the Backup Battery and/or the Add-on
Battery. Investigate and remove the fault condition.
all LEDs off Batteries are fully discharged, or a fuse is blown.