Summary of Contents for Alcoma ZENITH 80
- Page 1 Microwave data link ZENITH 80 Installation and operation manual Document version: 1.2 Published: 15. 4. 2011 Last modification: 08.01.2014 www.alcoma.com ...
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Page 2: Table Of Contents
Content page. 1. INTRODUCTION ..........................3 ................................5 ASIC DATA 2. DESCRIPTION OF THE LINK .........................7 ............................9 X POWER REGULATION ........................10 HE ROTECTED ERMINAL OX OUTDOOR UNIT (ODU) ............................ 14 3. INSTALLATION INSTRUCTIONS ......................18 ... -
Page 3: Introduction
Microwave radio relay link ZENITH 80 INTRODUCTION ALCOMA ZENITH 80 is compact and easy to deploy Gigabit Ethernet radio relay link suitable for both last miles and shorter backbone links. Service availability is comparable to optical fiber. Typical link distance is 3 – 5 km for 99.99 % availability. ZENITH 80 operates in 71–76 / 81–86 frequency band according to ECC recommendation (05)07. ZENITH 80 supports both copper and optical fiber interfaces. The whole ... - Page 4 Microwave radio relay link ZENITH 80 WARNING Violating of this marked safety instructions can cause serious injury to personnel. CAUTION Violating of this marked instructions can cause damage to the equipment. TIME EXPIRATION Link is time expired. Date of expiration is marked on ODU, in invoice and in dagnostic system ASD Client – menu Supervisor‐Identification‐Local/Remote station. Contact seles department of your supplier before expiration date and ask for unblockinng software codes. Only diagnostic data are transfered after expiration date. 4/52 1.2 ...
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Page 5: Basic Data
The link consists of the outdoor ODU unit, protected terminal box ALS1‐GEth or ALS1‐2GEth and the appropriate cables • The link can be supervised by the ASD Client program, through a web interface, hyperterminal, or SNMP protocol Ver. 1 • For the maintenance and diagnostic program ASD Client actual version see the following web page: www.alcoma.com • The radio relay link ZENITH 80 enables using of the antenna types ALCOMA AL1‐80/APR, AL2‐ 80/APR • ODU contains the acoustic signalization of incoming signal level RSSI • ODU is sealed, warranty is void if seal removed or broken WARNING The microwave link outdoor unit contains a microwave transmitter, which causes the health risk of non‐ionizing radiation while in operation. It is dangerous to look directly into the ... - Page 6 (The protected terminal box is marked as ALS1x in the further text.) ODU can be connected to the microwave parabolic antennas of the types ALCOMA AL1‐80/APR (Ø 0,35 m) AL2‐80/APR (Ø 0,65 m). These antennas are standard equipped by icing protection (radome) for use in demanding climatic conditions. The simply removable ODU is integrated with the antenna system ...
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Page 7: Description Of The Link
Microwave radio relay link ZENITH 80 DESCRIPTION OF THE LINK User data are connected to the protected terminal box ALS1x by the standard RJ45 connectors. The two‐stage terminal protection limits breakdowns caused by overvoltage originating in atmospheric electricity, or due to industrial breakdowns. The protected terminal box contains user selectable jumpers enabling its optimum grounding and adjustment. ODU is powered using the protected terminal box. The power supply in the range of +36 to +72 V, with the typical value of +48 V, is protected by the tube thermal fuse T2.0 A. The presence of supply voltage is indicated by a green LED. The supply voltage is transported to ODU by all four pairs of connecting cable conductors. ... - Page 8 Microwave radio relay link ZENITH 80 A received signal from the parabolic antenna is led through the diplexer to the receiver. There it is amplified and mixed to the intermediate frequency of 3.75 GHz and further amplified. From there the signal goes to a modem. Power suply MW ...
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Page 9: Tx Power Regulation
Microwave radio relay link ZENITH 80 The demodulated signal goes from the modem to a muldex, where user data (Ethernet) are separated from the diagnostic data. The user data are sent to the protected terminal box again through the overvoltage protection by a connection cable with 4 pairs of conductors. The voltage on the RSSI connector ( figure 6) is proportionate to the intensity of the signal received from the opposite station. This voltage determines the height of the tone for the acoustic transformer that serves as an indicator during pointing of the link. 2.1 TX POWER REGULATION The output power is set by manufacturer in conformity with maximum EIRP power condittions. EIRP calculates with both Transmitter output bower and antenna gain. There are two different concepts of ZENITH 80 link output power regulation concept: ... -
Page 10: The Protected Terminal Box Als X
Microwave radio relay link ZENITH 80 2.2 THE PROTECTED TERMINAL BOX ALSX The protected terminal box ALS1x is designated for a concurrent transmission of two Ethernet channels. The protected terminal box ALS1x provides protection of the customer data transmission and the power supply of the station against overvoltage of atmospheric origin. It splits the ODU supply current to all four pairs of conductors of the cable connecting it with ODU. ALS1‐GEth and ALS1‐2GEth may be used with ALxxF MP165, ALxxF MP360 and and ZENITH 80 links (see ODU sticker). Protected terminal boxes are marked as ALS1‐GEth (121/516*29) and ALS2‐GEth (121/516*30). • ALS1x should be mounted to DIN rail TS35. ... - Page 11 Microwave radio relay link ZENITH 80 2.2.1 Input Connectors Power supply connector on the front panel The connection cable for this connector ends with the socket type 1777989 Phoenix (0395340002 Molex). Type designation corresponds to the Phoenix (Molex) catalogue. RJ45 connectors for user line input User lines 2 and 3 Wiring Pins Description 1 A+ 2 A‐ 3 B+ 4 C+ 5 C‐ 6 B‐ 7 D+ 8 D‐ Table 1 RJ45 connector wiring – user lines Line2 a Line3 The AutoMDIX function assures switching of RX and TX as needed. 11/52 1.2 ...
- Page 12 Microwave radio relay link ZENITH 80 2.2.2 Output Connectors Cutting box "Krone" for the line 2 Line 2 does not contain power feeding. (Connector is wired as a mirror of ODU connector). The marking of cable conductors Wiring Pins Description S‐STP Cat7 1 A+ White 2 A‐ Green 3 B+ White 4 B‐ Orange 5 C+ Blue 6 C‐ White 7 D+ White ...
- Page 13 Microwave radio relay link ZENITH 80 2.2.3 Indikace Board: Protected terminal box LED Abbreviation Meaning POWER Power ON – indication of the radio station being switched on 2.2.4 Cables in KRONE cutting boxes ALS1‐GEth ALS1‐2GEth Figure 5 Cable wiring in ALS1‐GEth and ALS1‐2GEth boxes 13/52 1.2 ...
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Page 14: Outdoor Unit (Odu)
Microwave radio relay link ZENITH 80 2.3 OUTDOOR UNIT (ODU) User terminal space Type Optionally gromet of the second interconnecting Serial number cable GEth2 (Line2) MAC address Gromet of interconnecting ODU Type A/B cable GEth1 (Line1) Duplex spacing TX frequency Optionally connector of SFP modul (Line4) Connector BNC Output of U RSSI Bolt M8 Grounding of ODU Figure 6 The ODU connection places The outdoor unit (ODU) with its microwave and data electronic modules is placed into a metal alloy box with cover allowing opening user terminal space needed for cable connection and diagnostics of the link. ODU can be attached to AL1‐80/APR and AL2‐80/APR antennas by four latches. Feeder is connected to ... - Page 15 Microwave radio relay link ZENITH 80 Input connector Cutting box „Krone“ for the line 2 The marking of cable conductors Wiring Pins Description S‐STP Cat7 1 D‐ Brown 2 D+ White 3 C‐ White 4 C+ Blue 5 B‐ Orange 6 B+ White 7 A‐ Green 8 A+ white For simpler description the table does not consider the active functions AUTO MDIX Table 4 The outdoor unit ‐ cutting box “KRONE“ for the line 2 ...
- Page 16 Microwave radio relay link ZENITH 80 Figure 7 User space ODU 1xGEth Figure 8 User space ODU 2xGEth Indication LED Description Meaning 16/52 1.2 ...
- Page 17 Microwave radio relay link ZENITH 80 RX LEVEL LOW Low level of the input microwave signal HIGH BER Increased errors on the microwave path FRAME LOSS Loss of frame sync Blinks = monitoring system does not register any error states at OK the moment. Light on / Light off = monitoring system indicates an error state SFP Link / Orange = Link on SFP.Green = activity YG Activity Indication for stable output voltage of +3.3 V Power Table 6 Meaning of LEDs in the ODU user space Rotary switch functions The rotary switch is located on the mother board. It is accessible after flipping off the lid on the ODU cover. The station does not have any other elements that can be changed during normal operation. Position Description 0 Normal station operation 1 Pointing 2 ÷ F Reserve – not used yet ...
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Page 18: Installation Instructions
Microwave radio relay link ZENITH 80 INSTALLATION INSTRUCTIONS 3.1 STATION INSTALLATION Warning! Low voltage equipment, electromagnetic and telecommunication standards are applicable to radio relay link ZENITH 80. Warning! The radio relay link ZENITH 80 is not intended to be used by non‐specialist personnel. Installation, adjusting and maintenance must be performed by the manufacturer instructed personnel with electrotechnical qualifications. Allowed installation torques: ... -
Page 19: Placement Of The Antenna On A Support Construction
Microwave radio relay link ZENITH 80 Fresnel zone Line of sight Figure 9 The Fresnel zone Figure 10 shows situation when a solid object penetrates a Fresnel zone of signal propagation. The obstacle, just like the one on the figure, causes bending of the beam along the sharp edge. This beam then arrives at the receiver antenna little bit later than the direct beam. In other words there are two identical signals coming to the antenna, but with various phases, which strongly degrades the signal quality; and this can cause temporary break in data transmission. Trees or other “soft” objects infringing on the Fresnel zone attenuate the radio signal. In short: The fact that you can see the opposite side does not mean that ... - Page 20 Microwave radio relay link ZENITH 80 Roof line Roof line More than 0,3 m Roof line Roof line 1,3 m More than 12,5 m Figure 11 Proper placement of antenna on mounting pipe Obstacle distance 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.8 3.1 6.1 9.2 12 >12.5 [m] Height of antenna 0.3 0.6 0.9 1.2 1.3 1.4 1.4 1.4 1.4 1.5 1.5 1.8 2.1 2.3 ...
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Page 21: Local Frequency Coordination
Microwave radio relay link ZENITH 80 3.4 LOCAL FREQUENCY COORDINATION The following picture shows possible local frequency coordination in unlicensed/uncoordinated frequency band. Placement of antennas is shown only as one of possible recommendations. If there is more 80 GHz frequency band radio links in one location, polarization, or possibly link channel numbers must be selected to eliminate undesirable interference. The following figure 12 shows possible polarization combinations. ODU A ODU B Tx polarization: vertical Tx polarization: vertical Minimum 1 m (shorter distance is possible if proper functionality is verified) ODU A ... - Page 22 Microwave radio relay link ZENITH 80 3.5.1 AL1‐80/APR (AL2‐80/APR) antenna Figure 13 ODU attachment to AL1‐80/APR (AL2‐80/APR) antenna • Feeder is integrated in antenna. • ODU is attached to antenna by four latches for easier installation/deinstallation. 22/52 1.2 ...
- Page 23 Microwave radio relay link ZENITH 80 Bolt M10 Loosen while vertical pointing Bolts M10 Loosen while horizontal pointing Supporting pipe Ø42 ÷ 120 mm Bolts M10 Fixing of antenna brackets to supporting pipe Bolt M10 (fine vertical tuning ±20°) Nut M10 (fine horizontal tuning ±20°) Figure 14 Attachment of AL1‐80/APR (AL2‐80/APR) antenna holder The attachment of ODU with antenna must be sufficiently rigid to withstand wind acting on the ODU without making the link to point in a wrong direction (the main lobe width is ±0,4° and ±0,2°). These forces are primarily caused by the front wind resistance of the microwave antenna. The ODU box is installed with the gromet of connection cable pointing down with the horizontal polarization or to the side with the vertical one. It is never installed with the gromet pointing up. ...
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Page 24: Grounding
Microwave radio relay link ZENITH 80 3.6 GROUNDING CAUTION The antenna support pipe, antenna system, and the ODU box must be properly connected and grounded with regard to discharges of atmospheric energy. Always refer to local valid standards and regulations. LPZ 0 LPZ 0 S-STP Cat.7 LPZ 1 ALS1x =48V DC Power supply Surge protection Figure 15 The terminal grounding A support pipe in a stand or lattice mast must be grounded by a steel galvanized wire or a copper wire with a cross section of at least 50 mm . Also the ODU box and the antenna system must be grounded, best by a copper rope with the cross section of at least 14 mm that is ended by a cable eyelet. The brass bolt M8 with the grounding rope eyelet is screwed into the marked hole at the bottom of ODU that is placed under the connection cable grommet. The antenna system grounding points of AL1‐80/APR a AL2‐80/APR antennas are common with those of ODU. ... -
Page 25: Attachment Of Feeder To The Antenna
Microwave radio relay link ZENITH 80 3.7 ATTACHMENT OF FEEDER TO THE ANTENNA Caution Feeder can be damage while inexpert installation/deinstallation of ODU. Feeder is precise element, manipulate it carefully. Any damage may cause iAPRoper function of the whole link. Feeder and antenna are one whole. Attache the feeder to the antenna according to the following steps when delivered separately: • Check that “O” ring is slipped on feeder. •... -
Page 26: Typical Odu Wiring
Microwave radio relay link ZENITH 80 3.8 TYPICAL ODU WIRING Typical ZENITH 80 ODU wiring is shown on the following pictures. Separate power feeding and Line 4 optical connection may be used. This may help when different grounding potentials are between ODU and ALS1x and approves safety and imunity against atmospheric electrical discharges. ODU power feeding uses cable connected to Line 3 + POWER “KRONE’ cutting box. 1 link TP with power feeding in TP cable 1 link LX(SX) separate power feeding ODU ALS1x PWR 48V DC LINE2 LINE3 48V DC LX(SX) 2xTP + LX(SX) with power feeding in TP Retransmission TP with branch line ODU cable LINE3 TP ALS1x ALS1x 48V DC LX(SX) LINE2 LINE3 PWR 48V DC LINE2 LINE3 PWR Retransmission LX(SX) with 2 branch lines Retransmission with 4 branch lines ODU ODU ... -
Page 27: User Space Cover Handling
Microwave radio relay link ZENITH 80 3.9 USER SPACE COVER HANDLING The user space cover enables access to the user interfaces for connection and diagnostics of ODU only. This eliminates a possibility of undesirable interference into other ODU parts. The cover is attached by 2 M6 bolts that can be unscrewed by an Allen wrench no. 5. One of the bolts can be only partially loosened, which ensures attachment to the box during manipulation with the cover. Retightening of this bolt in open position enables locking of the lid in any position. Since the user buses are located in the inside hermetically enclosed space of the box, the lid is provided with a gasket. To protect the gasket from damage, please rigorously keep the safety notice specified below. ... -
Page 28: Installation Of Interconnect Cable
The connection cable must not be mechanically loaded. It has to be protected by a flexible electric installation pipe, especially in the outside environment, and attached so the mechanical loading is out of the question. We recommend using the electric installation pipe type HFX 16 by Dietzel Univolt. It is necessary to keep a minimum curvature during installation and attachment of the cable. The critical spot, especially for vertical polarization, is at the outlet of the connection cable from ODU. Alcoma completes the radio relay system deliveries by the modified cable of the type Cat 7 S‐STP from ACOME. Additional outside insulation of the cable increases its climate resistance and also resistance against the sun UV radiation. The procedure during installation of ACOME cable type Cat 7 S‐STP (Identical for the protected terminal box and ODU) ... - Page 29 Microwave radio relay link ZENITH 80 Folded top braid Contact spring Sealing gland connecting cable ring Top plate Bottom plate Cap nut PVC cable cover Figure 19 The grommet installation If a customer uses a different cable than the recommended type Cat 7 S‐STP by ACOME, the installation is similar. If the cable has separate shielding for each pair of conductors, then the shielding must ...
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Page 30: Sfp Optional Modules
Microwave radio relay link ZENITH 80 3.11 SFP OPTIONAL MODULES ODU can be extended using optional SFP modules. We recommend to use Finisar modules, which were tested with ALCOMA links. SFP module replacement is possible only in ALCOMA production plant. 1000Base‐SX 1000Base‐LX Multimode (850 nm) Singlemode (1310 nm) 1000Base‐BX 1000Base‐BX WDM Singlemode (TX 1550 nm – RX 1310 nm) WDM Singlemode (TX 1310 nm – RX 1550 nm) Figure 21 Optional SFP modules Modules can be installed only to ODUs equipped with special connector – see the following picture. Connector enables safe connection of metallic or optical interface regarding on used SFP module type. CAUTION Observe the general rules for work with optical cables, especially care about cleanness of optical connectors. Use safety cover for optical interface when manipulate with SPF module. 30/52 1.2 ... -
Page 31: Installation Of Optical Connector Molex 106059
Microwave radio relay link ZENITH 80 3.12 INSTALLATION OF OPTICAL CONNECTOR MOLEX 106059 3.12.1 Package content Dust cover Connector case Bayonet nut 3 Securing cable nut LC 3 mm connector body with injection pipe for glue 2x LC crimp ring 2x 5 Duplex junction (upper and lower) 3.12.2 Optical cable preparation 900 µm protective layer kevlar Ø 2,5 mm optical fibre case Ø 7 mm outer cable case + opt. cable core 37,4 29 3.12.3 Connector assembliing Slip securing cable nut, bayonet nu and connector case to the cable. Prepare optical cable according to the sketch above. Slip crimp ring (1 ring to 1 fibre). ... -
Page 32: Before Putting The Radio Link Into Operation
Microwave radio relay link ZENITH 80 3.13 BEFORE PUTTING THE RADIO LINK INTO OPERATION Before putting the radio link into operation the user must verify, whether he has available documents certified by the distributor that verify that the product is in safe condition. The manufacturer delivers “Measuring and Testing Protocol” together with the radio link, based on a special request, where basic electrical parameters measured during activation and adjusting of the connection are specified. 3.14 ACCESSORIES Based on customer wishes we can deliver all accessories necessary for installation and service of the radio relay links ZENITH 80: • interconnect cables ... - Page 33 Microwave radio relay link ZENITH 80 = 48 V LINE2 LINE3 & Power AL80GE Connecting Connecting cable S-STP cable S-STP ALS1x - ALS1x - ODU Protected terminal box ALS1x LINE2 LINE3 & Power Power supply LINE 2 LINE 3 ODU = 48 V ...
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Page 34: Setting Of The Radio Link And Its Commissioning
For reasons of achieving high operational reliability, parameter stability and long life the units (even enclosed in a cabinet) may not be placed near heat, water, dust, or vibration sources etc. The ALCOMA ODU units do not contain any adjustment or tuning elements that would have to be modified during commissioning by customers. The units are delivered tuned and tested. Removal of possible defects and failures within the warranty period is done by the manufacturer or a company ... -
Page 35: Pointing Of Radio Relay Link
Microwave radio relay link ZENITH 80 4.1 POINTING OF RADIO RELAY LINK Tx power must be reduced before starting pointing to avoid destruction of microwave receiver. Maximum allowed input signal level of the receiver is ‐20dBm!! Maximum Tx power for different combinations of antenna diameters and link distances are shown in the table below. Do not exceed the maximum input signal level on receiver. Parabolas 2x AL2‐80/APR (2 x 52 dB) Hop lenght [km] 0,1 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 Tx power [dBm] ‐13,0 1,2 7,4 11,1 13,8 15,9 ... - Page 36 Microwave radio relay link ZENITH 80 Pointing Procedure: • Loosen all M10 nuts (bolts) of the antenna fixing antenna position in horizontal or vertical direction. • Using an Allen wrench no. 5 loosen and flip up the cover on the ODU box (see the chapter 9 on the page 5). • After removing the BNC connector cover at the bottom part of the ODU box connect DC voltmeter ...
- Page 37 Microwave radio relay link ZENITH 80 Rough Adjustment The rough adjustment can be done “by eye” using binoculars rested against the antenna. If the visibility is bad, or distance is too long, you need to determine the azimuth first using a compass. Caution! Compass measurement accuracy is limited by steel mast construction! The rough pointing should have a variation of max. ±5° from the ideal antenna connecting line. We are trying to attain a signal of the opposite station by horizontal turning of the antenna by ±30° from assumed direction. The vertical setting is changed gradually, and the scanning in the direction of reception is done by horizontal turning. We do not recommend changing both directions at the same time. ...
- Page 38 Microwave radio relay link ZENITH 80 Figure 25 Radiation diagram Figure 24 Pointing The pointing procedure in both horizontal and vertical directions must be repeated several times to make sure that the best maximum of the radiation characteristic was found. The opposite station antenna needs to be final adjusted the same way. Checking of Pointing The value of received level can be determined by direct reading in the ASD monitoring program or by calculation using the calibration graph for RSSI. The RSSI voltage can be measured at the BNC connector without necessity to adjust the rotary switch. ...
- Page 39 Microwave radio relay link ZENITH 80 Figure 26 The RSSI calibration graph Change of polarization Polarization is changed by rotation of ODU by 90°. • Loosen 4 latches attaching ODU to the antenna. • Rotate ODU by 90° to the left or to the right. Grommet of interconnect cable must point down for horizontal polarization ant to the side for vertical polarization – see figure 27. • Attach ODU to the antenna by 4 latches. • Right hand or left hand ODU installation can be determined according to the ODU position to the supporting pipe while looking to the parabola from the front side. Horizontal polarization Vertical polarization Horizontal polarization Right hand ODU installation Right hand ODU installation Left hand ODU installation Figure 27 Setting of polarization for ZENITH 80 39/52 1.2 ...
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Page 40: Control Calculation
Microwave radio relay link ZENITH 80 4.2 CONTROL CALCULATION The following relationship is valid for the calculation of a level at the output of the receiving antenna, i.e., at the input of the microwave receiver: [dBm] = P [dBm] + G [dB] + G [dB] – A [dB] antV antP where: [dBm] is the transmitted output of the opposite station [dB] is the transmitting antenna gain antV [dB] is the receiving antenna gain antV [dB] is the free environment attenuation The following relationship is valid for the attenuation of free environment during good climatic conditions (without rain and fog): ... -
Page 41: Direct Connection Of A Monitoring Pc
Microwave radio relay link ZENITH 80 Additional attenuation behind an obstacle Přídavný útlum zastínění Ld[dB] z[-] -2,0 -1,5 -1,0 -0,5 Figure 28 The approximation of additional attenuation behind an obstacle 4.3 DIRECT CONNECTION OF A MONITORING PC Normally the communication of the monitoring PC with the ZENITH 80 station takes place through data connection (TCP/IP protocol) over Ethernet, where both user data, and the monitoring data are transmitted. If this connection is not possible the monitoring PC with installed and running, ASD program ... - Page 42 A cable connected according to the following figure can be used for this connection: User interface PC serial port PC surveilance Caution: Pins 7‐4 and 8‐9 may or may not be a cable connected Figure 29 The direct connection of the monitoring PC If the PC frame is galvanically connected with the power grid, the direct monitoring of the PC to ODU is not recommended. With regard to possible transfer of noise signals from the ODU unit to the power grid and the other way round this connection is only an emergency solution acceptable for a short time. For service purposes Alcoma delivers a cable ended on one side by the Cannon 9F connector and on the other by the Cannon 9M and PFL10 connectors, which connects the DCD, RX, TX, DSR, DTR, RTS, and CTS signals. The cable is intended for a temporary connection of the monitoring PC with the monitoring processor in ODU. The minimum 4 wire connection requires the RX, RTS, TX signals and the signal grounding, i.e., using of no. 3, 4, 5, and 9 pins. 42/52 1.2 ...
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Page 43: Operation Instructions
OPERATION INSTRUCTIONS 5.1 OPERATION The radio relay link ZENITH 80 does not require any service or maintenance during operation. The radio relay link ZENITH 80 can be remotely monitored by the ASD program that is intended for the management and diagnostics of the ALCOMA radio relay links using a monitoring PC during operation. All actual states, events and instructions are shown in individual windows in the arrangement according to separate functions or meanings (local station window, alarm history, station configuration, etc.). The monitoring system enables diagnostics of the radio links and both local and remote ends of the connection. The monitoring system is not necessary for the link transfer function itself (the link can be operated even without monitoring elements). However, monitoring is giving us diagnostic possibilities that simplify ... -
Page 44: Emergency Conditions
Microwave radio relay link ZENITH 80 5.2 EMERGENCY CONDITIONS Emergency conditions are such states and equipment demonstrations that can cause property damage and endanger health and safety of persons. These states and demonstrations include: damage of covers, connection cables, loosening of the equipment mechanical connections, strong corrosion, excessive heating, smell, smoke, etc. WARNING In case that any emergency conditions are observed, the operator must immediately remove them. 5.3 REPAIRS CAUTION ... -
Page 45: Safety Check
Microwave radio relay link ZENITH 80 SAFETY CHECK Each ZENITH 80 radio link is verified within check‐out inspection, and its parameters are measured according to standards (Inspection and testing of electrical installations). According to standards the ODU of the radio relay link ZENITH 80 is an electrical device used in the outside environment, supplied by SELV (Safety Extra‐Low Voltage) supply and inside of the unit there is no higher voltage than SELV. The unit allows connection of dead parts by a grounding bolt to a protection circuit that serves also as a protection against overvoltage and overcurrent of atmospheric origin. ... -
Page 46: Radio Relay Link Parameters
Microwave radio relay link ZENITH 80 RADIO RELAY LINK PARAMETERS 7.1 FREQUENCY PLAN 80GHZ Radio relay stations ALCOMA ZENITH 80 work in 71‐76 and 81‐86 GHz frequency band. Radio relay link operation in each country must be allowed by local regulations. The band is divided according to the recommendations of ECC/REC/(05)07 to channels with a width of 250 MHz. For links with the higher bandwidth channels to connect. ECC/REC recommended due to the width of the transmitted bandwidth links ZENITH 80 use two channel pairs A ‐ band lower half B ‐ band upper half Channel Recommended Transmitter Channel Recomended Transmitter number channel pairs frequency number channel pairs frequency ECC/REC [MHz] [MHz] ECC/REC [MHz] [MHz] 1 71 250,00 1´ 81 250,00 2 ... -
Page 47: Technical Parameters
Microwave radio relay link ZENITH 80 LINK The highest internal transmission capacity including service channels is 1 250 Mbit/s. Typical Width Total bit speed Modulation Threshold sensitivity of transmitted [Mbit/s] ‐6 for BER = 10 [dBm] spectrum in [GHz] 1 150 DBPSK ‐63 1,5 Table 11 Transmission speed of ZENITH 80 7.3 TECHNICAL PARAMETERS Parameter ZENITH 80 Transmitter frequency ‐ lower band section (/A) 71,000 ÷76,000 GHz ‐ upper band section (/B) 81,000 ÷ 86,000 GHz Duplex spacing 10 GHz ±10 ∙ 10 –6 Frequency stability better than Transmitted output of basic version 20 dBm Transmitter spectrum mask ... -
Page 48: Environment
Microwave radio relay link ZENITH 80 Parameter Value Dimension of 3 joined terminal boxes ALS1x (w × h × d) 482 × 44 × 138 mm ALS1x terminal box dimensions (w x h x d) 162 x 44 x 135 mm ODU dimensions (without antenna radiator and antenna) (w x h x d) 255 x 309 x 175 mm ODU weight (without antenna and antenna radiator) 6,5 kg Standards EN 60950 ETSI EN 302 217‐3 EN 301 751 ECC Rec. (05)07 Table 13 Technical parameters 7.4 ENVIRONMENT Operation ALSx and ODU units surrounding environment must not contain aggressive vapors and gases, must have a normal radiation level, and be without vibrations and shocks. All ALSx and ODU units are air‐cooled ... -
Page 49: Antenna Systems
Condensation of air humidity inside the link may occur when moving the unit from cold to hot places. It is forbidden to switch on the equipment until those parts are not dried. 7.5 ANTENNA SYSTEMS Parabolic antennas for fixed connection to ODU were developed for the 80 GHz band. The ALCOMA parabolic antennas can be used for horizontal and vertical polarization and left or right hand installation without modifications. All antennas are standard equipped by frost protection. The change of polarization is performed by turning ODU by 90°. ... -
Page 50: Main Equipment Dimensions
Microwave radio relay link ZENITH 80 MAIN EQUIPMENT DIMENSIONS 8.1 ODU – OUTDOOR UNIT Figure 31 Main ODU dimensions 8.2 PROTECTED TERMINAL BOX 1 47 Figure 32 Main dimensions of ALS1x 50/52 1.2 ... -
Page 51: Odu With Antenna
Microwave radio relay link ZENITH 80 Figure 33 Main dimensions of 3 assembled terminal boxes ALS1x to 19“ rack 8.3 ODU WITH ANTENNA Figure 34 Main dimensions of station with AL1‐80/APR antenna 51/52 1.2 ... - Page 52 Microwave radio relay link ZENITH 80 Figure 35 Main dimensions of station with AL2‐80/APR antenna 52/52 1.2 ...
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Page 53: Appendixes
Microwave radio relay link ZENITH 80 APPENDIXES 9.1 LIST OF FIGURES The block schematic of the ZENITH 80 link.......8 Manipulation with the user space cover......27 Protected terminal box ALS1‐GEth ..Chyba! Záložka není The grommet installation ..........29 definována. Finished assembly of the connection cable Cat7 S‐STP.. 29 Joining of ALS1x terminal boxes to 19” unit ....10 Optional SFP modules ............ 30 Cable wiring in ALS1‐GEth and ALS1‐2GEth boxes ..13 Connection of the connecting cable....... 33 The ODU connection places..........14 Pointing of AL80 GE link with AL1‐80/APR User space ODU 1xGEth ..........16 (AL2‐80/APR) antenna............ - Page 54 ALCOMA spol. s r. o. | Vinšova 11 | 106 00 Praha 10 | Czech Republic E‐mail: alcoma@alcoma.cz www.alcoma.com ...
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