Installation Guide
V5 Node B Installation Guide
Version 1.0.5 Page 20 of 44
Step 3 Site Preparations for Node B Installation
The section specifies the facilities that need to be available at the site prior to installation. The
table below is a site checklist that should be completed prior to installation.
It is assumed that the site has already been selected from RF network planning and site
acquisition/permission has been granted.
Table 5-5 : Site Preparation Checklist
# Facility Complete Y/N
1 Mains power supply –48Vdc plus breaker.
2 Availability of suitable Ethernet, E1/T1, E3/T3 Interfaces
3 Connections and trunking/conduits for interfaces
4 Suitable earth
5 Rack or cabinet suitable to mount the Node B
6 Clearance around the Node B for cable entry and cooling
Note: if installed within enclosure/cabinet rack the
environment for the Node B must meet the requirements as
specified in Table 5-1.
Assumptions
It is assumed that prior to Node B installation all civil, electrical distribution, structured
cabling termination work has been completed.
Additionally, all antenna rigging, feeder runs and terminations, associated lightning
protection plus grounding is complete, with certification for safety / compliance issued as
required by local regulations.
It is also strongly recommended that all VSWR plots of the feeder / antenna installations
should be available for inspection.
Positioning the Node B with a rack or cabinet
The Control and Radio Equipment shelves may be mounted on a single shelf/shelf
support as a pair (Figure 5-3) or can be mounted on separate shelves/supports.
For the V5A and V5C illustrations the 1 or 3 RF shelves are shown on top with the
Control shelf. The Control shelf may be be positioned on top with the Radio Equipment
shelves as shown in Figure 5-4.
The maximum vertical distance between the shelves should not be greater than 1U
(44mm or 1 ¾”).
Selection of a suitable position for the Node B shall be done by surveying possible sites
with regard to the availability of facilities i.e. power, relative position to the INC and
consulting the site plans.
Where the Node B is directly connected to the INC ie co-sited with the INC, the Node B
should be sited not more than 100m from the INC using Shielded Category 5 Ethernet
cable as specified.
Care should be taken to position the Node B for easy front and rear access.
The Node B will need to be connected near the feeder terminations and earthing points
provided on site.
Where the Node B is installed using a microwave link ensure that the microwave link can
support the Ethernet requirements for the IUB interface i.e. 100Base-T or 10Base-T full /
half duplex as the Node B and INC. If not the Node B and INC may need to be
configured manually to support different configuration. Note: 100Base-T full duplex is
recommended.