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The SRA 4 System offers a compact, easy-to-deploy and
cost-effective broadband wireless solution supporting high speed
data, video and voice communication in Wide Area Networks,
Metropolitan Area Networks and Corporate/Campus interconnections.
SRA 4 joins high capacity and high bandwidth efficiency into a
unique radio platform, it has been designed to be the natural
connection media for transmission network, always tailored on
service capacity needs, ready to accomplish with increasing traffic
requirements completely saving the existing installed base. The
system utilises state of the art
technologies to transport ultra-high capacity payloads with
fiber-like quality. Quick time-to-service and ease of installation
are clearly the killing feature making SRA 4 preferable to fiber
particularly in metropolitan areas. SRA 4 Digital Signal Processing
has been designed to accomplish to ATM quality of service
requirements, minimizing ATM cell loss and cell mis-insertion.
Broadband Wireless Access Networks, for fixed and mobile operator,
directly benefit of SRA 4 features speeding up link/network
deployment, facilitating link relocation and network flexibility
and guaranteeing a quick return of investment.
Applications SRA 4 line is primarily designed for urban networks
but is also suitable in regional or national networks meeting all
the requirements of access and trunk applications. Mobile Networks
3G Mobile ATM based collector network tipically conveying traffic
among NodeB/ Hubs and RNC. 2G infrastructure network already
implement SDH microwave rings to connect access to core networks.,
In the next future, the overlay of
The Microwave System for Multiple High-speed Networks
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2
the two networks will certainly benefit from SRA 4 upgrading
facilities rewarding operators with flexible and versatile
infrastructures. Fixed services Networks Support of ATM/IP networks
LAN and WAN, MW SDH
Spurs of fibre STM-N backbones or rings, Back up to fibre optic
links SDH, are some of the possible applications of SRA 4 in this
market segment. Service convergence is the word summarising the
trend of this
kind of networks, and once again flexibility became a must even
in this case .
155 Mbps155 Mbps
27,5/ 28 MHz
STM
STM
-- 11ST
MST
M-- 11
SRA 4Flexibility
SDH Urban LinkSame HW doubling ring capacity
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
311 Mbps311 Mbps
55/56 MHz
STM
STM
-- 11
1 xSTM-1
2 xSTM-1
128 Level Modulation
128 Level Modulation
1 x
STM
STM
-- 11 STM-127,5/ 28 MHz
155 Mbps155 Mbps
SRA 4Flexibility 1+1
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
SDH Urban LinkSame HW doubling spur capacity
311 Mbps311 Mbps
55/56 MHz
STM
STM
-- 11 2 x
STM
STM
-- 11 STM-1
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
128 Level Modulation
128 Level Modulation
Compelling Features High order modulation easy upgrading
procedure 128 TCM modulation scheme supporting STM-1/ STM-2 payload
transmission in 28/56 MHz. The payload upgrading from STM-1 to
STM-2 per carrier doesnt require any HW addition or change.
Frequency reuse Cross Polar Operation Getting advantage of Siemens
experience an effective XPIC device has been embodied to cover the
same distances even re- using the second polarisation to transmit a
second data stream
. N+1 configuration The system can be expanded to an
Multi-channel N+1 configuration without any external additional
switching system. Tunability The Operating Frequency channel can be
adjusted completely via SW (LinkViewer LCT/ NetViewer NMS) inside
the entire half band 7 to 38 GHz RF band coverage Coverage of 7 to
13 GHz band allows to use SRA 4 to implement links longer than 30
km while 15 to 38 GHz RF bands allow to implement shorter links in
urban
area using small directive antennas. High compactness SRA 4
system architecture permits to strongly reduce the number of rack
dedicated to transmission regardless of capacity and terminal
configuration. One 88 mm high indoor only is required to transmit 1
or 2 STM-1 streams and to implement protected or unprotected
terminals. 1or 2 x STM-1, 1+1 Terminal 1 88mm high IDU, 2 ODUs 1 or
2 xSTM-1 Add/Drop Terminal 1 88mm high IDU, 2 ODUs
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3
.
SRA 4Flexibility 1+1
STM-4 MW Rings Fiber Ring ClosuresSTM-4 or 4xSTM-1
311 Mbps311 Mbps
55/ 56 MHz
STM
STM
-- 44
4 xSTM-1
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT 311 Mbps311 Mbps
H
V
Co-Channel Frequency reuse128 Level Modulation
1 x
STM
STM
-- 11 STM-155/ 56 MHz
155 Mbps155 Mbps
SRA 4Flexibility 1+1
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
SDH Urban LinkSame HW doubling spur capacity
155 Mbps155 Mbps
55/56 MHz
STM
STM
-- 11
2 xSTM
STM
-- 11STM-1
IF
IF
V11 G 703 IN OUT
2MBit/s
1 2IN OUT
1 2
STM1
F
EXT.ALM
Q
PS
PS2MBit/s
IN OUTV11 G 703
EXP. Port
EXP. Port
CC
CC
E2 IN OUT
IN OUTIN OUT
32 Level Modulation
32 Level Modulation
155 Mbps155 Mbps
H
V
Management
For SRA 4 product line, system concept and the embedded software
architecture have been designed to permit a user-friendly and
effective local and remote terminals management. Communication
protocols, physical interfaces, networking peculiarities has been
thought to simplify and speed up as ,much as possible, DCNs
implementation. SRA 4, as all the
Siemens microwave product lines, can be managed not only by a
wide range Siemens Management Systems but also by third party
Management Systems. Open interfaces are available to integrate SRA
4 and the complete Siemens Microwave catalogue in multivendor
transmission networks. Scalability and modularity are the words
better describing our
Management Solutions: NetViewer , TNMS Core or Radio Commander
are the system can be used to manage Siemens MW catalogue
respectively when considered as stand alone, when managed together
with Siemens ADM/Crossconnect/LineTerminals or supervised by
Siemens Mobile Element Manager.
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4
OUTDOOR UNIT 7/8 11 13 FREQUENCY BAND 7.1-7.7/ 7.7-8.5 10.7-11.7
12.75-13.75 MODULATION 128 TCM 128 TCM 128 TCM CHANNEL SPACING 30
40 30 TX OUTPUT POWER (dBm) STM-1 23 21 20 RECEIVER THRESHOLD @
10-6 BER (dBm) STM-1 HD -69 -68 -67.5 SYSTEM GAING @ 10-6 BER (dB)
STM-1 HD 92 89 87.5 DIMENSION (WXDXH) 280X 180 X 365 MM WEIGH
9KG
OUTDOOR UNIT 15 18 23 26 28 32 38 FREQUENCY BAND 14.5-15.35
17.7-19.7 21.2-23.6 24.5-26.5 27.5-29.5 31.8-33.4 37.0-40.0
MODULATION FORMAT 128 TCM 32 TCM
128 TCM 32 TCM
128 TCM 32 TCM
128 TCM 32 TCM
128 TCM 32 TCM
128 TCM 32 TCM
128 TCM 32 TCM
CHANNEL SPACING 28/56 27.5/55 28/56 28/56 28/56 28/56 28/56 TX
OUTPUT POWER (dBm) 19 18 16.5 15 15 14 13.5 RECEIVER THRESHOLD @
10-6 BER (dBm) STM-1 per carrier ND (HD) -78 (-67) -78 (-67) -78
(-67) -74 (-63) -74 (-63) -74 (-63) -74 (-63) 2x STM-1 per carrier
HD -64 -64 -64 -60 -60 -60 -60 SYSTEM GAING @ 10-6 BER (dB) STM-1
per carrier ND (HD) 97 (86) 96 (85) 94.5 (83.5) 89 (78) 89 (78) 88
(77) 87.5 (76.5) 2x STM-1 per carrier HD 83 82 80.5 75 75 74 73.5
DIMENSION (WxDxH) 260 x 120 x 260 mm WEIGHT 6 Kg
INDOOR UNIT PAYLOAD 155.52 MB/S, 311 MB/S
TRAFFIC PER TRANSCEIVER STM-1 2X STM-1
MODULATION 32 TCM + REED SOLOMON 128 TCM + REED SOLOMON
PHYSICAL INTERFACES ELECTRICAL, G.703 OPTICAL G.957 S-11
AUXILARY INTERFACE 2.048 MB/S WAYSIDE TRAFFIC (2X2 MB/S PER EACH
INDOOR UNIT) DIMENSIONS HXWXD 88 X 447 X 240 MM WEIGHT 5 KG IDU-ODU
CABLE LENGTH UP TO 300 M - 1/4"
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Visit our international website at www.siemens-mobile.com or
send an e-mail to [email protected]
Siemens Mobile Communications S.p.A.Sales Offices Viale Europa,
46 - 20093 Cologno Monzese (MI) Italy Tel. +39 .02.9526.1 Fax +39
.02.2536135
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