ECI XDM-300, Руководство по установке и обслуживанию

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XDM-300 Installation and
Maintenance Manual Equipment Installation
417006-2311-0H3-A00 ECI Telecom Ltd. Proprietary 3-25
5. Connect the DC power cables of the XDM-300 shelves to the xRAP-100.
6. Install circuit breakers.
7. Check DC voltage polarity.
8. Connect the alarm cables.
For a description of the xRAP-100, refer to the XDM-300 Reference Manual.
The DC input power cables connect between the two DC power sources and the
xRAP-100 source A and source B inputs. Two cables are required, one for each
source.
N
OTE
:
According to accepted industry standards for
connecting DC power, the positive lead (+48 V) should be
connected with a red cable, and the negative lead (-48 V) with
a black cable. However, according to the BS7671 (GB) and
HD 308 S2:2001 (EU) standards, the positive lead (+48 V)
should be connected with a blue cable, and the negative lead
(-48 V) with a gray cable. In the following sections that
describe DC power cable connections, use cables with
appropriate colors to comply with the standards in your area
of residence.
Before you start:
Each cable consists of two stranded copper leads with a cross section of
35 mm
2
, one red and the other black. Each lead is terminated with a two-hole
compression lug from the installation parts kit supplied with the equipment.
If appropriate leads have already been prepared at the prescribed rack location,
make sure that the leads are not connected to any live voltage source before
attaching the lugs.
To prepare a DC power cable:
1. Strip about 22 mm of the red lead jacket.
2. Insert all the lead strands into the lug sleeve.
3. Press at two or three different points on the lug sleeve using an appropriate
crimping tool and die. The recommended tools are Panduit CT-720
crimping tool with CD-720-2 die, Klauke K18 crimping tool with D50 die,
or equivalent.
4. Repeat Steps 1 to 3 for the black lead.