Enclosure and Component Installation
What’s next
The Stinger® Compact Remote ATM DSLAM Getting Started Guide
3
-47
The Stinger CR cooling unit has two status lights on the front to indicate the
operating status of the cooling unit and the enclosure ventilation fan. The status
indicted by these lights is described in Table 3-7.
Power supply status lights
When lit, the power supply status light indicates that it is providing -48Vdc power to
the Stinger CR unit. You can use the test points to measure the -48Vdc output and
verify that it is within tolerance (±10%).
The status lights for both the ±190Vdc power supply and the -48Vdc power supply
are identical. The STATUS light is lit if the power supply is providing internal -48Vdc
power for the unit.
The Stinger CR ±190Vdc power supply is shown in Figure 3-35.
Figure 3-36. The Stinger CR ±190Vdc power supply
What’s next
When you finish physically installing the Stinger CR ATM DSLAM unit you can
proceed to the next
chapter.
Table 3-7. Cooling unit status light
Condition
Indicates
On green
The fan has power.
On red
The fan is in a fault state.
Blinking green
The fan is initializing.
COMPACT REMOTE POWER SUPPLY
V.CHECK
-48V
0V
STATUS
POWER INPUTS
-190V
+190V
Locking
screw
Status light
Test points
Input power connector