Ericsson RBS 2207 Technical specifications

EN/LZT 720 0134 Uen R3A
RBS 2207
Radio Base Station
Product Description
The RBS 2207, a member of the RBS 2000 family, is a 6–TRX radio base
station for indoor applications. This cabinet covers the same floor area as the
RBS 2202 and RBS 2206, but the cabinet height is lower.
P010987A
E
1 (24)

RBS 2207
Contents
1 Product Overview 3
1.1 Main Features 3
1.2 Variants 3
1.3 Optional Equipment 4
2 Dimensions 4
3 Space Requirements 4
4 Environment 7
4.1 Operating Environment 7
4.2 Environmental Impact 8
4.3 Compliance Distances for Electromagnetic Exposure 8
4.4 Materials 11
5 Hardware Units 11
5.1 Standard Hardware Units 12
5.2 Optional Hardware Units 14
6 Interfaces 15
6.1 External Connections 16
6.2 Test Interface 17
6.3 Operator Interface 17
7 Power System 18
7.1 AC mains supply voltage 18
7.2 +24 V DC Supply Voltage 19
7.3 -48 to -60 V DC Supply Voltage 20
7.4 Battery Back-up 20
7.5 Power Consumption 21
8 Transmission 21
9 Alarms 22
10 Standards, Regulations and Dependability 22
10.1 Safety Standards 22
10.2 Other Standards and Regulations 22
2 (24) EN/LZT 720 0134 Uen R3A

RBS 2207
1 Product Overview
The RBS 2207 is a medium capacity indoor base station. It is used for indoor
applications, with up to three double Transceiver Units (dTRU). The RBS 2207
is designed to be transported as a fully-assembled cabinet to the site. All
interior units are easily accessible from the front of the cabinet, which means
that the cabinets can be mounted side by side with their backs against a wall.
1.1 Main Features
The RBS 2207 can support the following features:
• 1, 2 or 3 sectors in one cabinet using CDU-G and/or CDU-J
• Discontinuous transmission/reception
• Duplex filters
• Dynamic power regulation
• Encryption/ciphering
• EDGE
• Expansion by tranceiver group (TG) synchronization
• External alarms
• Frequency hopping
• Global positioning system (GPS) synchronization
• Radio configurations supported on 800, 900, 1800 and 1900 MHz
• Receiver diversity
• Transmission Interface: The following transport network interface
alternatives exist:
- T1 1.5 Mbit/s, 100 , with internal synchronization
- E1 2 Mbit/s, 75 , with PCM synchronization
- E1 2 Mbit/s, 120 , with PCM synchronization
• Wide range power input 120 - 250 V AC
• Wide range power input -48 to -60V DC
1.2 Variants
There are three RBS 2207 cabinet versions:
3 (24)
EN/LZT 720 0134 Uen R3A

RBS 2207
• -48 to -60 V DC
• 120 - 250 V AC, 50 to 60 Hz, +24 V DC, with optional battery back-up
• +24 V DC (without PSUs)
1.3 Optional Equipment
The equipment listed below is available, but is not necessary for basic
functionality.
• Battery back-up (in a separate cabinet)
• Bias injectors
• dual duplex Tower Mounted Amplifier (ddTMA)
• External synchronization bus (ESB)
• Distribution Frame (DF) with OVP
• TMA-CM
• Transmission Adapter (TA)
• GPS receiver
2 Dimensions
The following section describes the measurements of the RBS 2207.
Table 1 Weight
Unit Weight
RBS cabinet (fully equipped including
base frame)
180 kg (397 lbs.)
Base frame 8 kg (18 lbs.)
Table 2 Color
Color Reference No.
Grey NCS 1002-R
3 Space Requirements
The following sections indicate the required space and recommended floor
layout.
4 (24) EN/LZT 720 0134 Uen R3A

RBS 2207
Free Space above the RBS Cabinet
P010922A
1300
Min. 1600
Min.250
400
600
Min. 300
1350
Figure 1 RBS 2207, free space above the cabinet
The recommended distance between the cabinet and cable ladder is 250 mm.
A shorter distance makes it difficult to exchange fans and may restrict the air
flow. A space of 300 mm is recommended above the cable ladder, in order to
simplify the cable installation work.
The door projects 70 mm in front of the cabinet.
5 (24)
EN/LZT 720 0134 Uen R3A

RBS 2207
Layout for RBS Cabinets
P007781A
1000
1000
Unit of measurement: mm
RBS
RBS
RBS
BBS
a=130o
Figure 2 Floor layout and space requirements
The RBS cabinets and battery back-up system (BBS) racks are mounted on
the floor, and may be positioned against a wall, back to back, or free standing
without contact with other cabinets.
Additional cabinets and racks can be positioned to the left or right of the first
installed cabinet. However, expansion to the right is recommended in order
to follow the same global standard.
A distance of 1000 mm in front of the cabinets and racks for maintenance work
is recommended.
Note: Space for future expansion must be considered as indicated in the
dotted line in the figure above.
Earthquake Requirements
If the RBS cabinet is to fulfill the requirements for earthquake protection, the
space between wall and cabinet is to be at least 100 mm and between cabinets
at least 150 mm.
6 (24) EN/LZT 720 0134 Uen R3A

RBS 2207
Footprint
Unit of measurement: mm
P010951A
(RBS 2202)
FRONT
99 400
598
220
45
320 400
o 20x75
RBS 2206 / RBS 2207
Figure 3 Hole pattern overview
The RBS 2207 has the same footprint as the RBS 2202 and 2206 cabinets.
The base frame can be used as a template to mark new holes. If an RBS
2202 or an RBS 2206 is being replaced by an RBS 2207, the holes for the old
cabinet can be used for the new cabinet.
4 Environment
The RBS 2207 is designed to operate within limits stated for climatic
requirements, and also to have a limited effect on the environment.
4.1 Operating Environment
The climatic requirements the RBS 2207 has on the site are shown in the
table below.
7 (24)
EN/LZT 720 0134 Uen R3A

RBS 2207
Table 3 Environmental specifications
Environmental
Parameters
Normal Operation
(1) Safe Function Non-
destructive
Conditions (2)
Temperature +5 to +40 C 0 to +45 C -10 to +55 C
Relative Humidity 5 - 85% 5 - 90% 5 - 90%
(1) Normal operation describes the environmental conditions where all units function as specified.
(2) Non-destructive conditions describe environmental stress above the limits for normal
conditions with no function guaranteed and unspecified degradation. When the environmental
stress has dropped to normal conditions, restoring full RBS performance requires no manual
intervention on site. Non-destructive conditions refer to a maximum period of 96 consecutive
hours, and a maximum total of 5.5 days in a three-year period.
Ground Vibrations
The RBS 2207 is tested to withstand random vibrations of up to 0.2 m²/s². It is
also tested for single shocks up to 40 m/s². The cabinet is tested for seismic
exposure with a test frequency of 1 - 35 Hz. Maximum test level of the Required
Response Spectrum (RRS) is 50 m/s² within 2 - 5 Hz. The shape of RRS is
defined by the ETSI standard.
Levelling
For cabinet levelling purposes, the floor must be level to within ±3 mm/2000
mm and the floor gradient be within ±0.1 .
4.2 Environmental Impact
This section describes the effect that the cabinet has on the environment.
Heat Dissipation
The RBS 2207 generates an average heat load of 1000 W. The exact figure is
dependent upon confguration, equipment and site-specific conditions.
4.3 Compliance Distances for Electromagnetic Exposure
The compliance distance is the minimum separation that should be kept
between an antenna and a person in order to ensure that ICNIRP RF exposure
limits are not exceeded.
8 (24) EN/LZT 720 0134 Uen R3A

RBS 2207
Note: ICNIRP, ‘‘Guidelines for limiting exposure to time-varying electric,
magnetic, and electromagnetic fields (up to 300GHz)’’, International
Commission on Non-Ionizing Radiation Protection, Health Physics,
vol. 74, no. 4, 1998.
Ericsson has performed a free-space near-field RF exposure assessment
of typical configurations of RBS 2207 with a recommended antenna. The
resulting dimensions, in meter, for a compliance boundary for both public and
occupational exposure are shown in Table 4.
The compliance boundary is defined as a cylinder around the antenna, see
figure below. The antenna is not located at the centre of the cylinder. Instead
it is located almost at the edge, facing towards the center of the cylinder.
The distance between the antenna’s rear and the edge of the cylinder is the
"Distance behind antenna". The height of the cylinder is the antenna height
plus equal distances above and below the antenna. The cylinder shape
overestimates the compliance distances right beside the antenna.
P009694A
Diameter
Height
Antenna
Distance
behind
antenna
Figure 4 Compliance boundary cylinder
Note: Table 4 shows an example for a typical antenna. As the antenna field
distributions will differ, complete calculations or measurements may
be necessary in order to establish the compliance boundary for other
configurations chosen by the customer. For further information on
calculation methods, see:
Radio Site Installation Engineering
Manual EN/LZN 720 0069
9 (24)
EN/LZT 720 0134 Uen R3A

RBS 2207
Table 4 Compliance boundary dimensions for the general public (GP) and
occupational (O) exposure for typical configurations.
Dimensions of cylindrical compliance boundary in
meter (m)
Diameter Height Distance
behind
Fre-
quency
(MHz)
RBS con-
figuration
GP O GP O GP O
900 3x2 un-
combined
7 3 1.7 1.4 0.1 0.1
1800 3x2 un-
combined
5 1 1.6 1.4 0.1 0.05
900 3x2
combined
4 1 1.5 1.4 0.1 0.1
1800 3x2
combined
2 0.5 1.4 1.4 0.1 0.05
900 3x1 comb.
TCC
6 3 1.7 1.4 0.1 0.1
1800 3x1 comb.
TCC
5 1 1.6 1.4 0.1 0.05
Compliance distances to the side of the antenna for occupational exposure
are 0.15 m for all configurations above. For characteristics of an antenna
recommended for typical configurations of an RBS 2207, see Table 5.
Table 5 Characteristics for a typical antenna (KRE 101 1916/1)
Antenna specifications X-pol macro RBS sector antenna
Antenna height 1.3 m
Horizontal half-power beam width 65 degrees
Vertical half-power beam width 14.5 degrees at 900 MHz, 7.8 degrees
at 1800 MHz
Antenna gain 14 dBi at 900 MHz, 16.5 dBi at 1800
MHz
Downtilt 0 degrees
The maximum power fed to the antenna, as a function of the number of
transceiver units (TRUs) per antenna and maximum power (including tolerances
and transmission loss) per TRU, for RBS 2207, are given in Table 6.
10 (24) EN/LZT 720 0134 Uen R3A