Pasolink V4 Installation and Initial Lineup Description

NEC Pasolink Series

Digital Radio System Pasolink Installation Description

Installation The 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

January 13, 2007 NEC Corporation 2007 2

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 Power2. System capacity 3. Serial number4. Product date5. Warning6. Caution


ODU Packing List


For ODU we also can easily read some important information such as:1.[ ]G equipment 2. Shift frequency 3. Sub-band4. High/Low 5. Chanel number 6. Frequency point7. Serial number 8. Product date

Identify Different Type ODU


1. 7/8 G ODU 2.Waveguide type ODU

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

Main different

point

O-ring(attached to wave guide type ODU)

Mounting Bracket Packing List


1 2 3

4 5 No.12345 19'' Rack Mounting Type

DescriptionPole Mounting Coaxial Cable Type (7/ 8 GHz )

Pole Mounting WaveguideType Antenna Direct Pole Mounting Type

Wall Mounting Type

Other Relative Assembly


4

2

3

1

No.

1

2

3

4

7-8g HYB (x1) for 1+1, with N-type coaxial cable connector

13-38G HYB (x1) for 1+1

Desciption

7.5 A Fuse (SMP75) (x 2ea)

Power connector ( Molex Housing M5557-4R) (x lea)Cable termianl (Molex M5556-4T) (x 4ea)

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 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

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.

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

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.

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

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.


Electric drill *

ToolsTorque wrench or Monkey wrench

ScrewdriverTape measure*Center punch*

Hammer*

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.

ODU Mounting


ANT-------WG/ ODU (18--38GHz BAND)Not used Used

Used Not usedAntenna direct mounting

Waveguide connection

O-RINGSMALL SIZE LARGE SIZE

REMARKSO-Ring OF ATTACHMENT OF ANTENNA

ANT-------ODU

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:

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.

ODU MountingStep 3. Check that the ODU and the bracket are fixed firmly or not.


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.

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.

ODU Mounting


Step 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)

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

1+0 SystemCaution: Wrap the

coaxial cable connection points

with a self-bonding tape for waterproof.

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


Using HYB For 1+1 System

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

ODU Mounting


2.13-38 GHz Waveguide Connection Pole Mounting Bracket, AssemblingStep 1. Mount the attachment with adapter to the ODU bracket using ten bolts.

Step 2. Loosen eight nuts and remove the two U-bolts from the ODU bracket.

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

ODU Mounting3.13-38 GHz ODU Andrew(small/large) antenna direct mounting procedure:


Large size antenna Small size antenna

Step 1. Install the bracket to the antenna pole.

Step 2. Mount antenna to the bracket.Note:1.Figure shows V

polarization 2.Be careful not to damage the O-ring(Antenna)

ODU Mounting


Step 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.

ODU Mounting


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

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

ODU Mounting


Step 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.

ODU Mounting


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

ODU Mounting


Step 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.

ODU Mounting


4.Waveguide connection for 1+1 HYB procedure:

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

ODU Mounting


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

ODU Mounting


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

ODU Mounting


Step 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.

ODU Mounting


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

ODU Mounting


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

ODU Mounting


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

Step 9. Confirm the ODU Type, which is Master or Slave.

ODU Mounting


Step 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.

ODU Mounting


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

Polarization ChangeFor ODU direct mounting type antenna, can refer to the installation manual which is attached to the antenna.(Note: The antenna is

set to V-polarization when shipped from the factory)

As Andrew antenna is example the procedure of change polarization as:


Step 1. Keep the antenna stand horizontally.

Step 2. If you change to H polarization, loosen the four screws with the Allen key wrench and then rotate the Transition hub of feed, keeping the antenna stand horizontal.

Polarization Change


Step 3. Holding the feed with hand, rotate the feed 90 degrees.

Step 4. Check that the aperture part of the Transition hub is rotated by 90 degrees, then fix it with the screws that were loosened in step 1.

Note: When a large and small gasket are included in the antenna package. Please us the large one(The small gasket is not used in antenna mount).

Above procedures descript >1.2M diameter antenna, following will give you brief introduction for small size Andrew antenna how to change the polarization.

Polarization Change


Step 1. Keep the antenna stand horizontally.

Step 2. Loosen six screws with Allen wrench until transition can rotate freely.Note: Do not remove the screw complete from the screw hole. Because of the screw tight is applied, the strength to loosen screw is necessary.

Step 3. Rotate the transition hub 90 degrees until timing pin locates in timing concavity.

Step 4. Tighten six screws when transition hub is located.

Polarization ChangeHybrid polarization change procedure:Step 1. If you change to H polarization, loosen two screws, rotate the Transition hub and put the HYB horizontally.


Step 2. Check that aperture of the connection unit is rotated as shown below, then fix it with the two screws that were loosened in step 1.

Note: The hybrid is set to V-polarization as default.

Polarization ChangeODU polarization change procedure:Step 1.When vertical polarization is required, rotate the ODU so as to go up the plate marked V.


Step 2. When horizontal polarization is required, remove the guide pin fixed on the plate marked with V.

Step 3.Screw in the guide pin removed in Step 2 to the screw hole of the plate marked H.Step 4.Rotate the ODU so as go up the plate marked H.

Note: When the ODU is mounted on to NEC HYB, only V polarization is applied.

Waveguide Connection


1.The connection method of the waveguide type ODU is described in following procedures:Step 1. Mount a waveguide to the ODU, fix the waveguide to the ODU with 4 bolts.

Notes: 1. Use suitable flange adapter between ODU and waveguide depending on the waveguide type.

2. Connection of the waveguide is the same way as ODU is wall mounted or 19-inch mounted.



2.The connection method of the antenna direct mounting type ODU is referred to the following procedures:Step 1. Mount the ODU bracket to the pole with two bolts.

Step 2.Mount the ODU to the ODU bracket with attached 4 bolts.



Step 3.Make sure that the ODU and the ODU bracket are fixed at specified values.

Step 4.Mount the waveguide to the ODU with four bolts.

Frame GroundingThere have very important point is that IDU and ODU frame grounding.Location:


Frame Grounding


For outdoor frame grounding as right diagram:During the on-site installation, please find nearest grounding bus bar for ODU grounding.

Note: * NEC recommends that frame grounding of ODU should be connected to the earth line as NEC’s standard installation.

Cable TerminationThis section we will describe the cable termination such as D-sub connector, IF connector of the L type, IF connector of

the straight type and Molex M5557-4R connector respectively.The necessary tools and materials are summarized in Table 2-2.


Table 2-2 Tools and Material List

Cable TerminationTerminating supervisory cables with D-sub connector making procedure:


Step 1. Strip back the cable sheath, taking care not to damage the braided shield.

Step 2. Fold back the braided shield(do not separate the strands) and trim it as shown.

Step 3. Remove the insulation over a length of 4mm from the end of wire.

Step 4. Insert the cable into the socket contact.

Step 5. Cable should be fitted, so that insulation and bare wire are arranged.

Cable Termination


Step 6. Mount the socket contact using a hand crimping tool.

Step 7. Recheck that the wire position is as shown in Step 5 before crimping the contact (see illustration at right).

Cable Termination


Step 8. Wind the metallic shield tape on the braided shield.

Step 9. Set the cable into plug case, then fit the cable clamper and two screws.

Step 10. Referring to circle A, fix drain wire with screw.Step 11. Referring to circle B, insert each wire to the specified position, insert the socket contacts into the upper and low row positions while taking care that the socket contacts are inserted the right way round. Finally, fix the plug case with 2 screws.

Cable Termination


For D-sub connector pin assignment describe as following table:

CHANNEL NO. CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH 1

PIN NO. Pin 1 Pin 2 Pin 3 Pin 4 Pin 6 Pin 7 Pin 8 Pin 9 Pin 11 Pin 12 Pin 13 Pin 14 Pin 16 Pin 17 Pin 18 Pin 19

WIRE COLOR Red

Red-White Red-Black Pink

Pink-Blue

Pink-Green

Pink-Black Blue

Blue-Black Purple

Purple-White

Purple-Black

Green-Black

Green-White Yellow

Yellow-Black

Data Input

Data Input Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input



WIRE COLOR

Light-Blue

Light Blue-Blue

Light Blue-Green

Light Blue-Red Orange

Orange-Black

Orange-White Gray

Gray-Black

Gray-Green

Gray-Red Brown Black

Black-White

Light-Green White

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

IDU Traffic IN/OUT(CH1-CH8):

Cable Termination




WIRE COLOR Red

Red-White

Red-Black Pink

Pink-Blue

Pink-Green

Pink-Black Blue

Blue-Black Purple

Purple-White

Purple-Black

Green-Black

Green-White Yellow

Yellow-Black

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input

Data Input



WIRE COLOR

Light-Blue

Light Blue-Blue

Light Blue-Green

Light Blue-Red Orange

Orange-Black

Orange-White Gray

Gray-Black

Gray-Green

Gray-Red Brown Black

Black-White

Light-Green White

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

IDU Traffic IN/OUT(CH9-CH16):

Cable Termination


IF cables with L-type connector making procedure:Step 1. First fit the tying metal, washer and gasket on the cable.

Step 2. Strip back the cable sheath, taking care not to damage the braided shield, and fit the clamp.

Step 3. Fold back the braided shield(separating the strands of the braid) and trim it.

Step 4. Insert the ferrule.

Cable Termination


Step 5. Fit the bush.

Step 6. Cut the aluminum fail and inner insulator away along the bush and remain the inner conductor.

Step 7. Taper the edge of the center conductor using a file as shown in right circle.

Step 8. Cut the aluminum fail and inner insulator away along the bush and remain the inner conductor.

Cable Termination


Step 9. Insert the cable into the shell.

Step 10. Tighten tying metal with wrench point by wrench.

Cable Termination


IF cables with Straight type connector making procedure:Step 1. First fit the lock nut, washer and gasket on the cable.

Step 2. Strip back the cable sheath, taking care not to damage the braided shield, and fit the clamp A.

Step 3. Fold back the braided shield and trim it.Step 4. Cut away the insulation from the center conductor and fit the clamp B. Be sure not to cut or scratch the conductor while stripping the insulation.

Cable Termination


Step 5. Cut the center conductor. Taper the end of the center conductor using a file as shown in the circle.

Step 6. Mount the center contact onto the center conductor.Note: Insert the center contact into insulator(1.5mm)

Step 7. Mount the insulation onto the center contact.

Cable Termination


Step 8. Insert the cable into the connector shell.

Step 9. Tighten the lock nut.

Cable Termination


Step 1. Remove 3.0 to 3.5 mm of insulation.Power supply cables with Molex connector making procedure:

Step 2. Set the socket contact to the following position onto a hand crimping tool.

Cable Termination


Step 3. Squeeze the handle of the hand crimping tool, insert cable into socket contact.

Step 4. Cable should fit, so insulation and bare wire are arranged.

Step 5. Squeeze the handle of the hand crimping tool until ratchet is released.

Step 6. Insert socket contacts into the power connector till they lock.

Cable and Terminal Connections


Waterproof ProtectionAfter cable connection, must be taken waterproof method in order to protect our equipment resist from raining.


7/8 GHz (1+0) System 7/8 GHz (1+1) System

Waterproof Protection


Initial Lineup


1.Start-up:Step 1. Check that the LINE IN voltage is between +20V to +60V/-20V to -60V with the digital multimeter, before connecting the power connector to

the IDU.Note: The range of DC power input depends on system requirement.

Step 2. Turn on the POWER switch on the IDU.Note: For 1+1 system, when neither No.1 nor No.2 channel is working, first set the OPE SEL switch to the desired (No.1 or No2) position and power on the selected MD Unit or set the OPE SEL switch to neutral(Auto) position and power on both MD units. When either No.1 or No.2 channel is working, perform MAINTE ON condition with the LCT, set the OPR SEL No.1-No.2 switch on the IDU to the working channel side, then, turn on the power switch of the not working channel.

Step 3. Allow equipment to warm up for at least 30 minutes.

Initial Lineup


2.Shut-down:For 1+0 systemStep 1. Turn off the POWER switch on the front of the IDU.

For 1+1 systemStep 1. Perform the setting for MAINT ON condition with the LCT.Step 2. Set the OPR SEL No.1-No.2 switch to the channel position to be on-line.Step 3. Turn off the POWER switch on the channel of off-line.

Note: In 1+1 system, before turn off the POWER switch of No.1 or No.2 channel, perform MAINT ON condition with LCT.

3. Lineup Test:BER measurement cannot be performed on channels which are occupied with LAN signal, therefore change the setting from LAN to 2MB signal

transmission using LCT before the measurement. For BER test required tools as: 1) Digital Multimeter;2) Screwdriver;3) BER Tester;4) Personal Computer.The procedures for BER test between two sites are described for both (1+0) and (1+1) system as follows:

Step 1. Set up as following figure, at station A, the output signal from BER tester (SENDING UNIT),then the input signal mode to BER tester (RECEIVEING UNIT) at station B. Also, can loop up the station B using one BER tester to implement this test.

Initial Lineup


Lineup Test Setup (1+0) System

Initial Lineup


Lineup Test Setup (1+1) System

Initial LineupStep 2. Meter reading of ODU, remove the cap from the RX LEV MON jack.


Step 3. Connect an RF cable with F connectors (Male) to RX LEV MON jack. With the digital multimeter or OW/RX LEV Monitor unit, confirm that the meter indication is as described in table:

Initial Lineup


Step 4. Disconnect RF cable, the digital multimeter or OW/RX LEV MONITOR and reconnect the cap removed in step 2.Step 5. Connect the personal computer to the LA PORT of the IDU using an RS-232C cable.

Note: At the end of LCT operation log out from LCT menu by keying “99” and then exit from the communication software. In case if you have exit from the communication software without logging out from LCT, repeat connecting and disconnecting of the RS 232C cable once to reset.

Step 6.Turn on the power on the PC and press the “CTRL” and “D” keys at the same time

Initial Lineup


Step 7. Press “Enter” key.

Step 8. Press “0” key and “Enter” key.

Step 9. Following display appears.

Step 10. Press the “3” key and “Enter” key, the following appears.For 1+0 System

Initial Lineup


For 1+1 System

Step 11. Press the “1” key and “Enter” key, the following appears.For 1+0 System

For 1+1 System

Step 12. When the Pasolink is in normal working condition, results maybe appeared within the values shown in table:

Initial Lineup


Step 13. Press “99” key to exit.Step 14. Connect the OW/RX LEV MONITOR to the RX LEV MON jack on the ODU.Step 15. Connect headset to the EOW jack on the front panel of the IDU and/or to EOW jack on the OW/RX LEV MONITOR.

Step 16. Press the CALL button switch on the front panel of the IDU, at opposite site, the buzzer on the IDU is activated.Step 17. Check that order wire telephone between sites can be connected by using headsets.

Initial Lineup


Step 18. Set OW switch on the OW/RX LEV MONITOR to ON (OW indicator on the OW/RX LEV MONITOR is turned on).Step 19. Check that order wire telephone between sites can be connected by using headsets.Step 20. Set OW switch on the OW/RX LEV MONITOR to OFF (OW indicator on the OW/RX LEV MONITOR is turned off).Step 21. Disconnect headset from EOW jack on the front panel of the IDU, and/or from EOW jack on the OW/RX LEV MONITOR.Step 22. Disconnect the OW/RX LEV MONITOR from the RX LEV MON jack on the ODU.

January 13, 2007NEC Corporation 2007 70

Pasolink V4 Installation and Initial Lineup Description

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