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Determining the Operating Status
Connecting power to a Stinger MRT unit
Connecting power to a Stinger MRT unit
Caution
!
Compliance Guide for safety instructions and circuit regulatory information.
Warning
this procedure.
To connect the unit to dc power:
1
Verify that the correct power source is available for the Stinger MRT.
Caution
!
provide a method of disconnecting the unit from power, as required by national
and international safety standards UL 1950 and IEC/EN60950.
2
Verify that the dc power cables comply with national standards and specifications
as described in IEC 60950 and are terminated in number 10 ring lugs.
Note
3
Locate the power terminal strip on the front of the unit and remove the plastic
shield by squeezing the clips on each side of the shield and pulling the shield
away from the unit, as shown Figure 4-1.
Figure 4-1. Removing the power terminal shield of a Stinger MRT 23
Note
Although the location of the power terminal strip is slightly different on the
front of the Stinger MRT 19 chassis, the protective plastic shield is removed in the
same manner.
4
Using Figure 4-2 or Figure 4-3 as a guide (depending on model), attach a power
cable to each set of power connectors as follows. Both power cables must be
connected at all times when the unit is in operation.
–
–
–
Note
cable to the ground terminal on the front of the unit.
4-2
Before connecting power, see the Edge Access and Broadband Access Safety and
Verify that the power is off or disconnected at the source before beginning
The -48Vdc power source must include a double pole circuit breaker to
Minimum wire size for up to 6A is 0.75mm² or 18 AWG
-4 8 V A
R T N A
Using a number 2 Phillips screwdriver, remove the screws for the -48Vdc and
return connections.
Insert one screw into each of the ring lugs on the power leads.
Reinstall each screw with its power lead onto the appropriate power terminal
position.
You can ground the chassis to the enclosure by attaching a grounding
P O T S
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Stinger® MRT Getting Started Guide
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