User's Manual

ManualsBrandsAlcatel Canada ManualsElectronicsAlcatel 7390 LMDS Multiservice Broadband Wireless

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 81/346

104

9. Set the DMC crimping tool to position 4 (for 24 AWG wire), and give the positioner a clockwise twist

to ensure that it is set properly and will crimp the contact pins on four sides.

10. Place a contact pin on a lead and check that the lead is inserted completely by looking in the hole in

the contact pin; see Figure 51. There should be no more than 1 mm (0.04 in.) of exposed conductor

protruding from the pin.

Insert the pin into the DMC tool as far as it can go, and crimp the pin. The DMC tool has a ratchet

mechanism that does not release until the pin has been crimped properly.

Repeat this step for each lead.

Figure 51 – Attaching a contact pin

11. Arrange the four pins as indicated in Figure 52, and insert them simultaneously into the insert; the

pins enter the side of the insert that has the white marking. The pins must be inserted simultaneously

because the conductors are not long enough to be inserted one at a time. Push each pin until it clicks

into position, then confirm that contact is secure by gently pulling on the conductor.

The white marking on the insert identifies the pins. The white circle identifies pin 1, and pins 2, 3 and

4 follow counterclockwise.

Use the removal tool if the pins are in the wrong holes.

Figure 52 – Inserting the contact pins

12. Put the insert into the insert carrier; see Figure 53.

When assembled properly, the tab on the carrier faces towards the pins, the tab on the insert fits in

the cutout in the carrier, and the bevel in the carrier fits on the bevel on the cone washer. The mat-

ching bevels pinch the braided shielding when the connector is completely assembled.

Contact

Conductor

Inspection

hole

White

marking

Pin 1

Tx+ White (Blue)

Pin 4

Rx- White (Orange)

Pin 2

Rx+ Orange

Pin 3

Tx- Blue

Summary of content (20 pages)

PAGE 1
9. Set the DMC crimping tool to position 4 (for 24 AWG wire), and give the positioner a clockwise twist to ensure that it is set properly and will crimp the contact pins on four sides. 10. Place a contact pin on a lead and check that the lead is inserted completely by looking in the hole in the contact pin; see Figure 51. There should be no more than 1 mm (0.04 in.) of exposed conductor protruding from the pin. Insert the pin into the DMC tool as far as it can go, and crimp the pin.
PAGE 2
Pins Tab on insert Insert carrier Tab on carrier Bevel Cutout in carrier Figure 53 – .Putting the insert into the insert carrier 13. Put the insert carrier into the connector body; see Figure 54. The red dot on the outer shell aligns with the tab on the insert carrier. You should feel a slight click when the carrier locks into place. It may be necessary to gently push the cable while carefully rotating the connector body until the click is felt.
PAGE 3
2.9 – Installing an L4PNM Heliax connector 2.9.1 – Overview The following parts are required: – Heliax LDF4 cable. – Heliax L4PNM connector (solder-connect or ring-flare variant). All tools and hardware required for this procedure except wrenches and soldering tools should be ordered from Heliax. See Appendix A for details. Note - Newbridge Broadband Wireless equipment should only be installed by qualified individuals who are trained and certified for the type of installation task assigned to them. 2.9.
PAGE 4
3. Use a small grease brush to lubricate the O-ring with the silicone grease shipped with the connector. 4. Install the clamping nut on the cable by sliding it over the cable end until it is stopped by the O-ring. The fingers of the clamping nut should stop exactly half-way through a corrugation peak, as shown in Figure 58. Clamping nut Figure 58 – Installing the clamping nut 5. Remove the portion of outer conductor that is not covered by the clamping nut.
PAGE 5
6. Remove the foam dielectric from the inner conductor. 1. Use a knife to cut the foam dielectric flush with the outer conductor, to the depth of the inner conductor, then cut along the length of the inner conductor several times until all the foam dielectric is removed from the inner conductor; see Figure 61. Figure 61 – Removing the foam dielectric 2. Use a knife to carefully scrape any remaining dielectric foam adhesive from the inner conductor. Be careful not to damage the inner conductor. 7.
PAGE 6
5 mm (7/32 in.) Figure 62 – Trimming the inner conductor 8. Use a knife to compress the foam dielectric away from the outer conductor as shown in Figure 63. Compressed foam Before foam compression Uncompressed foam After foam compression Outer conductor Foam dielectric 2 mm (3/32 in.) Figure 63 – Compressing the foam dielectric 9. Flare the outer conductor: 1. Use a flaring tool to flare the outer conductor, as shown in Figure 64.
PAGE 7
Flaring tool Before flaring After flaring Figure 64 – Flaring the outer conductor 10. Solder the pin to the inner conductor: 1. Cut 1 mm (0.040 in.) diameter solder to a length equal to the depth of the pin cup, roll the length into a ball, and insert it into the pin cup. When the pin cup is heated by the soldering iron, this solder will melt and provide a even solder bond on the inside of the pin cup. 2.
PAGE 8
Heat shield Solder bead Solder hole Soldering pliers Deburred inner conductor Pin cup Figure 65 – Soldering the pin 11. Verify that the pin is installed at a 90° angle with respect to the clamping nut, as shown in Figure 66. If the pin is not straight, and cannot be corrected, remove it, and start the procedure again. 90° Figure 66 – Checking the pin 12. Add the large O-ring to the clamping nut, as shown in Figure 67.
PAGE 9
O-ring Figure 67 – Adding the large O-ring 13. Use a small grease brush to lubricate the O-ring with the silicone grease included with the connector. 14. Add the outer connector body to the clamping nut and pin. Hold the clamping nut stationary with one wrench, and thread the connector body onto the clamping nut with another wrench; see Figure 68. Do not turn the clamping nut, only turn the connector body. Tighten to 1.9 to 2.4 Nm (16.8 to 20.8 in.lb) of torque.
PAGE 10
Cable jacket 51 mm (2 in.) or greater Lowest point between corrugations Outer conductor Figure 69 – Removing the cable jacket 2. Install the O-ring on the first corrugation valley as shown in Figure 70. O-ring Figure 70 – Installing the small O-ring 3. Use the small brush to lubricate the O-ring with the silicone grease included with the connector. 4. Install the connector body on the cable by sliding it over the cable end until it is stopped by the Oring, as shown in Figure 71.
PAGE 11
Cutting guide Figure 72 – Adding the cutting guide 6. Remove the outer conductor: Note - Substep 2 is unnecessary if Heliax cable tool 207886 was used in step 1 to score the cable jacket, and cut the outer conductor. If the Heliax cable tool was used, proceed to substep 2. 1. Use a fine-tooth saw to cut through the outer conductor flush with the cutting guide.
PAGE 12
7. Remove the foam dielectric from the inner conductor: 1. Use a knife to cut the foam dielectric flush with the outer conductor, to the depth of the inner conductor, then cut along the length of the inner conductor several times, until all the foam dielectric is removed; see Figure 75. 2. Use a knife to carefully scrape any remaining dielectric foam adhesive from the inner conductor. Be careful not to damage the copper coating on the inner conductor. Figure 75 – Removing the foam dielectric 8.
PAGE 13
6-8 mm (1/4’’-5/16’’) 1 mm (1/32’’) Figure 77 – Trimming the inner conductor 9. Use a knife to compress the foam dielectric away from the outer conductor as shown in Figure 78.
PAGE 14
Compressed foam Before foam compression Uncompressed foam After foam compression Outer conductor Foam dielectric 2 mm (3/32 in.) Figure 78 – Compressing the foam dielectric 10. Flare the outer conductor: 1. Use a flaring tool to flare the outer conductor, as shown in Figure 79. 2. Examine the flare, and use the small file to remove any burrs or irregularities from the flared outer conductor. 3. Use a clean wire brush to remove any debris from the foam dielectric.
PAGE 15
O-ring Figure 80 – Adding the large O-ring 12. Use the small grease brush to lubricate the O-ring with the silicone grease shipped with the connector. 13. Add the end of the connector to the connector body. Hold the end of the connector stationary with one wrench, and thread the connector body onto the connector end by turning it with another wrench; see Figure 81. Do not turn the connector end, only turn the connector body. Tighten to 1.9 to 2.4 Nm (16.8 to 20.8 in.-lb) of torque.
PAGE 16
The downstream path loss is measured from the IBS-TLX card Tx SMA cable to the end of the IF cable that connects to the X-Pol RBS Tx. The upstream path is measured from the IBS-TLX card Rx SMA cable to the end of the IF cable that connects to the X-Pol RBS Rx. If the measured upstream or downstream loss is less than the value required, an attenuator is installed between the 12:2 Combiner/ Splitter and the Bias-T. Table 27 lists the equipment required to calibrate the upstream and downstream IF cable losses.
PAGE 17
5. Measure the losses at the lowest and highest frequencies in the frequency band used by the system. 1. Set the signal generator frequency to the Llow frequency and the RF output power level to 0 dBm. 2. Connect the signal generator to the appropriate SMA cable (IBS-TLX). Connect the power meter to the X-Pol RBS Tx/X-Pol RBS Rx IF cable. Figure 82 shows the test setup. 3. Measure the RF power level with the power meter. Record this value as the upstream or downstream Llow value. 4.
PAGE 18
Click on the arrow to select the bandwidth: 14/4 Us*3.5, 28/4 Us*7 MHz (by default: not configured) Click here to enter the central trequencies of the upstream (reception) and downstream (emission) channels (see radio scheduler) No. of the AMD board associated with the sector Encryption activation: No Click here to cancel the modifications Click here to apply the modifications Click here to return to the BS details screen Click here to activate the upstream. 2.
PAGE 19
2.12– Technical specifications of the Base Station (7390BS) 2.12.
PAGE 20
2.12.2– DBS specifications Designation Description Standards Observations Mechanical specifications: Rack-mounted DBS assembly standard 19" HxLxD 1250(mm)x600(mm)x600(mm) cf. diagram in § 3 Installation Weight <135 kg (including 85 kg for empty rack) - Mechanical specifications: DBS shelf without rack HxLxD 844.55(mm)x482.6(mm)x540(mm) 19-inch cf.