Filter
Top Products
DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115
Issue 1
April 2000
Adding or Removing Cabinet Hardware
6-39Remove an EPN Cabinet from an Existing System
6
All Installations
1. When the system reset is finished, type
status port-network 2
and press
Enter. The Port Network Status screen appears. Verify that PNC Active is
“up” and that the Service State is “in.”
2. A Span LED, on the front of the DS1 Converter circuit pack, must be off for
each inactive facility administered. For example, if Facility A and Facility B
are unadministered, then the top 2 Span LEDs on the circuit pack must be
off. If the yellow LEDs are on, then problems were encountered during the
unadministration of hardware. Span LEDs associated with administered
facilities (C and D, in this example) should be on.
Removing the Hardware
1. Be sure that you have unadministered the trunks, attendant consoles,
voice terminals, and data modules associated with the port circuit packs
in the EPN cabinet.
2. Remove the fiber optic cables from the fiber transceivers at both ends of
the fiber span. Carefully coil the fiber optic cables. Avoid bending cables
to a radius smaller than 1.5 inches (3.8 cm).
3. Remove the fiber transceivers from the DS1 and/or DS1 converter circuit
packs at both ends of each fiber span.
4. Remove the 25-pair cables from the connector panel on each carrier of
the EPN.
5. Type
remove cabinet
<
number
> and press
Enter. This removes the EPN
cabinet administration.
6. Remove the power cords from the power units in each carrier in the EPN
and remove the AC power cord or DC power wires.
7. Check the grounding scheme for the cabinets. Perform the following:
a. If any cabinet ground wires connect in
series
between the EPN
cabinet and any other cabinet, remove the wires from the EPN
cabinet and connect them to the next cabinet in the ground plane.
!
CAUTION:
Never leave cabinets ungrounded. When a ground wire is
removed from a series-connected cabinet, the ground plane
becomes open with respect to all subsequent cabinets.
b. If any cabinet ground wires connect in
parallel
to other cabinets, or
connect directly to the AC power panel ground or other approved
ground, remove the wire from each end of the ground span.
8. Carefully remove the EPN cabinet. The cabinet may weigh as much as
800 pounds. Use caution.