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3. Product

The RAy microwave bridge is designed for operation in backbone networks for transmission in the licence-free 10 GHz band.

It works as a point-to-point bridge in full duplex mode with a signalling rate of up to 170 MBps. The bandwidth is optional, namely 28/14/7 MHz. Modulation can be set to be fixed or adaptive in the range QPSK to 256-QAM.

RAy microwave bridge

Fig. 3.1: RAy microwave bridge

The link is formed by two stations of FOD (Full Outdoor) design. One of them is labelled RAY10L1 and transmits in the lower half of the frequency band, and the second is labelled RAY10H1 and transmits in the upper half of the band (or RAY10L2 and RAY10H2 – see chapter Connectors).
The line can be assembled with several types of antennas.

3.1. Model offerings

   eth connectorsmicrowave bandstandard
RAY10-LA+RAY10-UAcommon10.3 – 10.6 GHzCzech
RAY10-LA-2+RAY10-UA-2separated10.3 – 10.6 GHzCzech
RAY10-LB+RAY10-UBcommon10.15 – 10.65 GHzEurope
RAY10-LB-2+RAY10-UB-2separated10.15 – 10.65 GHzEurope

Detailed frequency table see Appendix A, Modulations and frequencies.

3.2. Installation

Antenna is attached to a mast tube with an adjustable mounting rack. A RAy unit is then mounted onto the antenna. Two assembly positions are possible – either for horizontal or vertical polarization. The rack installation and setting up is described in the Antenna mounting chapter.

RAy microwave bridge – image of the antenna and FOD unit

Fig. 3.2: RAy microwave bridge – image of the antenna and FOD unit

Connection to LAN may use one or two connectors:

  • RAY10L1, RAY10H1 uses a shared connector for user data, service access and PoE power supply

  • RAY10L2, RAY10H2 uses two connectors, one for user data and PoE power supply, and one for service access. Connector setup is described in the Connectors chapter. .

A third BNC connector enables connecting a voltmeter for RSS indication during setup.

RAy microwave bridge – connectors

Fig. 3.3: RAy microwave bridge – connectors

3.3. Table of technical parameters

Frequency rangeL: 10.15 – 10.30 GHz, U: 10.50 – 10.65 GHz
(optionally L: 10.30 – 10.42, U: 10.47 – 10.59 in CZ version, see czech manual)
Ability to retuneCEPT 12-05 R (optionally CZ: VO-R/14/12.2006-38)
Channel spacing (CS)7; 14; 28 MHz
Minimum channel duplex spacingany combination of Lower and Upper channels
Modulationfixed QPSK, 16, 32, 64, 128, 256 QAM, or ACM
Modulation rate
(for the channel 28 MHz)
50 Mbps/QPSK, 100 Mbps/16QAM, 125 Mbps/32QAM,
150 Mbps/64QAM, 175 Mbps/128QAM, 200 Mbps/256QAM
User data rate
(channel 28 MHz, stronger coding)
41 Mbps/QPSK, 81 Mbps/16QAM, 102 Mbps/32QAM,
130 Mbps/64QAM, 155 Mbps/128QAM, 171 Mbps/256QAM
Forward Error Correction (FEC)LDPC, 2 levels of redundancy (higher/lower)
Data sensitivity @ BER 10e−6
(28 MHz, coding High, secured for all all temperatures and frequencies)
−89 dBm/QPSK, −82 dBm/16QAM, −78 dBm/32QAM,
−75 dBm/64QAM, −72 dBm/128QAM, −69 dBm/256QAM
Co-channel interference rejection
(28 MHz, coding High, secured for all temperatures and frequencies)
−12 dB/QPSK, −17 dB/16QAM, −22 dB/32QAM,
−24 dB/64QAM, −28 dB/128QAM, −31 dB/256QAM
Adjacent channel interference rejection / selectivity
(28 MHz, coding High, secured for all temperatures and frequencies)
20 dB/QPSK, 18 dB/16QAM, 16 dB/32QAM,
15 dB/64QAM, 11 dB/128QAM, 8 dB/256QAM
CW interference rejection / blocking ratio (28 MHz, coding High, secured for all temperatures and frequencies)62 dB/QPSK, 52.5 dB/16QAM, 52.5 dB/32QAM, 46 dB/64QAM,
43 dB/128QAM, 40.5 dB/256QAM
Output Power−5 dBm to +10 dBm (1 dB step)
Latencytyp. 140 μs for 170 Mbps
(round trip delay with 64B frame acc. to RFC 2544)
User interface1 Gb Eth. (IEEE 802.3ac 1000BASE-T), MTU 1536B
recommended cable S/FTP CAT7
Service interface (optionally)100 Mb Eth. (IEEE 802.3u 100BASE-TX),
recommended cable S/FTP CAT7 or CAT5
SupplyPoE, resp. 40–60 VDC, IEEE 802.3at to 100 m,
user interface
Power consumptiontypically 17 W (max. 20 W)
Operating environmental conditions−30 to +55°C (ETSI EN 300 019-1-4, class 4.1.)
Mechanical designFOD (Full Outdoor)
Dimensions245 × 245 × 150 mm
Weight3.3 kg (without antenna)
Configuration, diagnostics
Configuration and managementHTTPS, SSH, Telnet
Real time monitoringRSS, SNR, BER
Diagnostic toolsSpectrum analyzer, Pinger, Constellation diagram
History chartstemperature, supply, RSS, SNR, BER, net bitrate, eth. traffic
Statisticsseparately Radio line and Ethernet for all types of packets
Installationvoltage indication at BNC connector (−85 to −30 dBm)
optional: RSS acoustic indication (0.5 dB resolution)
Network managementSNMP ver. 2c including configurable TRAPs
Antennes
Jirousdirect mounting, Class 2: 38 cm/28.0-29.0 dBi, 65 cm/34.1-35.5 dBi
Arkivatordirect mounting, Class 2: 30 cm/28.5-29.0 dBi, 60 cm/32.8-34.6 dBi, 90 cm/37.3-38.0 dBi
direct mounting, Class 3: 99 cm/38.2-39.4 dBi, 120 cm/39.1-40.1 dBi
Othervia flexible waveguide
  
Standards
Radio specificationsETSI EN 302 217-2-2 V1.3.1 (2009-04), applicable limits for ACCP/CCDP
EMC (electromagnetic
compatibility)
ETSI EN 301 489-1 V1.8.1 (2008-04),
ETSI EN 301 489 -17 V1.3.2 (2008-04)
Electrical safetyEN60 950-1: 2004

3.4. Dimensions

External dimensions of ODU communication unit:
 245 × 245 × 150 mm
 weight 3.3 kg
Diameters of supplied antennas Arkivator:
 ø300 mm
 ø600 mm
 ø990 mm
 ø1200 mm
Diameters of supplied antennas Jirous:
 ø380 mm
 ø650 mm
Mast diameter at point of link holder fixing:
 ø40 – ø115 mm
Distance of antenna axis from mast axis:
 270 mm

The dimensions of the RAy10 unit including the mounting and Jirous antenna:

Dimensional layout of the RAY10 with the Jirous antenna

Fig. 3.4: Dimensional layout of the RAY10 with the Jirous antenna

Tab. 3.1: Dimensions for various sizes of antenna

Nominal
ø ant.
A
[mm]
B
[mm]
C
[mm]
D
[mm]
E
[mm]
3804403192022110
65073040729030058

For dimensions of the Arkivator antennas refer to the appendix.

Name plate

The plate contains name, bar code record, CE label, etc.:

  • Type/Code – station indication, e.g. RAY10/L2, where L or H indicates the transmission frequency in the lower or the upper half of duplex channel, 2 or 1 represents two separated eth channels or one common one for data and service

  • S/N – serial number, link contains stations with two different numbers

  • MAC – hw address of ethernet module

Name plate

Fig. 3.5: Name plate

3.5. Accessories

The microwave bridge comes supplied as standard with:

  • two FOD units – labelled RAY10L and RAY10H for the lower and upper half of the zone

  • two antenna dishes with brackets for mounting on a mast – based on the users requirements and specification

  • tub of NOVATO silicon lubricant (mixture of silicon grease, PTFE and other additives) for lubricating the antenna pin. (see Section 5.2.3, “Lubrication and preservation of the antenna pivot”)

Microwave bridge accessories need to be ordered separately : (for further details please see http://www.racom.eu)

  • Antenna - At present (11/2011) there are two types of antenna available:

    The choice of antenna significantly influences the properties of the bridge and for that reason it is advisable to use the calculator for assessing the correct size of antenna.

  • FOD unit power supplies – 30W PoE adapters

  • two IE-PI-RJ45-FH connectors for connecting the FOD unit for outdoor use – these quality connectors allow the connection of cables with conductors of cross-sectional area 0.129–0.329 mm2 (AWG 26 – AWG 22, i.e. ø0.4–ø0.64 mm). For assembly instructions see chapter Section 5.3.2, “Fitting an external IE-PI-RJ45-FH connector”

  • two IE-PI-RJ45-BK connectors for connecting the FOD unit for indoor use.

  • S/FTP Cat.7 cable for connecting FOD units to the network.

  • AGC cable for connecting a voltmeter to the RAy unit for adjusting the antenna direction. (see g - "Antenna mounting", point g)

  • Grounding set for grounding the CAT7 cable. Manufactured by PEWTRONIC s.r.o., code S/FTP 4+2

  • RAy grounding set for grounding RAy equipment to the mast. Contains a ZSA16 grounding terminal, grounding tape and a cable with grounding lugs.

Grounding set for grounding the CAT7 cable, RAy grounding set and surge protection for the CAT7 cable – see images Fig. 5.61 - "Grounding kit for S/FTP 4+2 cable" and Fig. 5.63 - "RAy grounding kit".

Additional microwave bridge accessories which have been specially produced for installation of RAy microwave bridges can also be ordered :

  • RAy Tool set

    Fig. 3.6: RAy Tool set

    Set of tools for installation of the bracket and mounting of connectors in the RAy Tool set. Branded tools which allow complete installation of the microwave bridge.

     

     

     

     

     

     

     

 
 

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