Pasolink V4 Installation and Initial Lineup Description

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Transcript of Pasolink V4 Installation and Initial Lineup Description

NEC Pasolink Series

Digital Radio System Pasolink Installation Description

InstallationThe standard installation is summarized in this section. Included herein is information on typical installation work flow and installation guide for IDU, ODU, antenna, waveguide installation and cable connection. Firstly, please refer to the installation flow shown as right diagram

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IDU Packing ListEach unpacked component of digital radio system must be checked. For IDU, we can easily find some relative information from the top panel of IDU, such as: 1. Required Power 2. System capacity 3. Serial number 4. Product date 5. Warning 6. Caution

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ODU Packing List

For ODU we also can easily read some important information such as: 1.[ ]G equipment 2. Shift frequency 3. Sub-band 4. High/Low 5. Chanel number 6. Frequency point 7. Serial number 8. Product dateJanuary 13, 2007 NEC Corporation 2007 4

Identify Different Type ODU1. 7/8 G ODU 2.Waveguide type ODU

Main different point

3. Antenna direct mount ODU(13-52G)

type

O-ring(attached to wave guide type ODU)

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Mounting Bracket Packing List1 2 3

4

5

No. 1 2 3 4 5

Description Pole Mounting Coaxial Cable Type (7/ 8 GHz) Pole Mounting WaveguideType Antenna Direct Pole Mounting Type Wall Mounting Type 19'' Rack Mounting Type

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Other Relative Assembly1 2

3

No. 1 2

Desciption 13-38G HYB (x1) for 1+1 7-8g HYB (x1) for 1+1, with N-type coaxial cable connector Power connector ( Molex Housing M5557-4R) (x lea) Cable termianl (Molex M5556-4T) (x 4ea) 7.5 A Fuse (SMP75) (x 2ea)

4

3 4

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IDU MountingThe installation of procedure for (1+0)IDU mounting is as below:Step 1. Align the IDU to the mount position on the 19-inch rack.

Step 3.To mount IDU in 19-inch rack, allow space more than 200mm to the rear section and space for one unit to the top and bottom.

Step 2.Fix each side of IDU to the rack with two screws(M5).Note*: Normal setting for free space. When free space closed within one rack unit, keep the environmental temperature less than +40C

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IDU MountingThe installation of procedure for (1+1)IDU mounting is as below:Step 1. Align the IDU to the mount position on the 19-inch rack. Step 3.To mount IDU in 19-inch rack, allow space more than 200mm to the rear section and space for one unit to the top and bottom.

Step 2.Fix each side of IDU to the rack with two screws(M5).

Note*: Normal setting for free space. When free space closed within one rack unit, keep the environmental temperature less than +40C

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ODU MountingThere are three types of mounting for the ODU: Pole mounting, wall mounting and 19-inch rack mounting types. The tools for installation are listed in below Table 1-1.

ToolsTorque wrench or Monkey wrench Screwdriver Tape measure* Center punch* Hammer* Electric drill *

Table 1-1

Caution: How to use small and large O-rings are shown in the following Table1-2.Two(small and large) O-rings are attached in 18-38G Hz band Andre/RFS direct mount antenna. 13/15G band antenna does not have small O-ring(small O-ring is not used for Andrew/RFS direct mount antenna). If the small O-ring is used for ODU direct mount installation, a gap may occur between ODU and antenna for RF interface. This may cause transmit or receive level down.

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ODU MountingO-Ring OF ATTACHMENT OF ANTENNA ANT-------ODU ANT-------WG/ ODU (18--38GHz BAND) O-RING SMALL SIZE Not used Used LARGE SIZE Used Not used REMARKS Antenna direct mounting Waveguide connection

Note: 13/15GHz antenna for direct mount is not possible to connect the ordinary waveguide flanges.

Notes: 1.* Do not use both small O-ring and large O-ring simultaneously. 2. Large O-ring size is different with frequency band as follows:

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ODU MountingFollowing we will introduce the procedure of pole mounting for different frequency band ODU respectively. 1. 7/8 GHz ODU Mounting(Connecting Coaxial Cable)Step 1.Mount the bracket to the pole, point to the opposite station and tighten it with two U-bolts.

Step 2.Mount the ODU on to the bracket and tighten four bolts(M6) at upper and lower parts of the ODU.Note: The diameter of pole is from 48.5 to 114.5 millimeters.

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ODU MountingStep 3. Check that the ODU and the bracket are fixed firmly or not. Step 4. Connect the Coaxial cable to the RF IN/OUT connector of the ODU. Down the cable fix bracket to fix the Coaxial cable, then tighten the two bolts.

Caution: Before connecting the IF cable between the IDU and ODU, using the circuit tester, check that the resistance of the IF cable between center conductor and insulation is more than 100 M Ohm.

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ODU MountingStep 6. Install the Coaxial cables between the antenna and ODU.

(When the wave guide flange is provided to the antenna port, fit the transducer with eight bolts)

1+0 SystemCaution: Wrap the coaxial cable connection points with a self-bonding tape for waterproof.

Note: Fix the coaxial cable to the pole or member with cable hanger or cable ties after antenna orientation has been completed.

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ODU MountingFor the 1+1 system connection steps similar with 1+0 system.

1+1 SD SystemNote: Antenna Separation (S)is given by path calculation depending on the system parameter.

Using HYB For 1+1 SystemJanuary 13, 2007 NEC Corporation 2007 15

ODU Mounting2.13-38 GHz Waveguide Connection Pole Mounting Bracket, AssemblingStep 1. Mount the attachment with adapter to the ODU bracket using ten bolts.

Step 3. Mount the ODU bracket to the pole with two U-bolts.

Step 2. Loosen eight nuts and remove the two U-bolts from the ODU bracket.January 13, 2007 NEC Corporation 2007 16

ODU Mounting3.13-38 GHz ODU Andrew(small/large) antenna direct mounting procedure: Large size antennaStep 1. Install the bracket to the antenna pole.

Small size antenna

Step 2. Mount antenna to the bracket.Note:1.Figure shows V polarization 2.Be careful not to damage the O-ring(Antenna)

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ODU MountingStep 3. Fix the ODU to the bracket by tightening the M6 screws(four locations).

Step 4. Insert guide pin on the hole of bracket to set the position of screws.Caution: Align flanges on antenna and ODU correctly, and fix the ODU with four screws.

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ODU MountingStep 5. Fix the ODU to the bracket with four screws.

Note: Antenna Separation (S)is given by path calculation depending on the system parameter.

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ODU MountingStep 6. For 13-38GHz 1+1 ODU direct mounting antenna system need install Hybrid additionally.

Step 6.1. Fix the bracket and handle to the HYB.

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ODU MountingStep 6.2. Check the polarization and fix the HYB to the antenna by tightening the M6(four locations).

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ODU MountingStep 6.3. Insert the O-ring to the two ODU ports of HYB. Step 6.4. Fix the two ODUs with hex screws using the Allen key wrench.

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ODU Mounting4.Waveguide connection for 1+1 HYB procedure:

Step 1. Assemble the bracket and handle to the HYB.

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ODU MountingStep 2. Assemble parts of the pole mounting bracket used to mount to the HYB.

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ODU MountingStep 3. Screw the Mount Arm and the Truss with the M6x25 Screw, Flat Washer(x2),Spring Washer(1),Nut, at four locations.

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ODU MountingStep 4. Determine centre off set.

Step 5. Fit the guide pin of HYB to the Guide Pin Hole of the Mount Arm.

Note: When either Main or Standby ODU is removed, attach the short plate over the ODU port. January 13, 2007 NEC Corporation 2007 26

ODU MountingStep 6. Install the HYB onto the bracket with the M6x35 Screw, Flat Washer(x2), Nut(x2), at four positions.

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ODU MountingStep 7. Install the HYB to the mounting pole using the M12x200 Screw, Flat Washer, Nut.

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ODU MountingStep 8. Adjust direction of the bracket for Waveguide Port of the HYB orientation.

Step 9. Confirm the ODU Type, which is Master or Slave.January 13, 2007 NEC Corporation 2007 29

ODU MountingStep 10. Install the ODU onto the HYB.

Note: The ODU should be attached by turning the plate marked V up position for both Main ODU and Standby ODU.

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ODU MountingStep 11. Connect the flexible waveguide to the ODU and fix the waveguide to the ODU with four bolts.

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