R9100 E9230 DC Transfer Box Installation Guide R1.1(201011)

8/11/2019 R9100 E9230 DC Transfer Box Installation Guide R1.1(201011)

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R9100/E9230

DC Transfer Box Installation Guide

R1.1 (2010-11)


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R9100 E9230 DC Transfer Box Installation Guide R1.0

ZTE Confidential Proprietary 2010 ZTE Corporation. All rights reserved. 1(13)

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2 2010ZTE CORPORATION. All rights reserved.ZTE Confidential

Proprietary

Revision History

Product Version Document Version Serial Number Reason for Revision

V3.0, V4.0 1.0 First issue

V3.0, V4.0 1.1Having improved thegrounding way.

Author

Date Document VersionPrepared

byReviewed by Approved by

2010-8-9 1.0Liu Zhe

Wang Huarong

Yi HuaMa Wenguang

2010-11-25 1.1Liu Zhe

Wang Huarong

Yi Hua

Ma Wenguang


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Applicable to : Base station engineering and installation personnel.

Proposal:Before reading this document, it is recommended to understand the following knowledgeand skills

SEQ Knowledge and ski lls Reference material

1 R9100, E9230 installation ZXMBW BSS Quick Install Guide

2

3

Follow-up document:After read this document, you may need the following information

SEQ Reference material Information

1

2

3


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Proprietary

1. Remove the black outer sleeve of the unshielded power cable (41.5 mm2, 0.5m) and the shielded

power cable (24 mm2) with the stripping to make the two sub-cables exposed, shown as Fig 1.

The length of the blue sub-cable is 80mm5mm; the length of the black sub-cable is 20mm25mm;

the length of the exposed copper core is about 7mm.

Figure 1 Cut The Black Outer Sleeve of The Power Cable

Do not cut the sub-cables in the DC transfer box! Otherwise, the copper core left in the transferbox may cause short circuit

The power cable of R9100 and E9230 is used in the way of Unshielded Power Cable

(41.5mm2, 0.5m) +DC Transfer Box + Shielded Power Cable (24 mm

2); R9100 power cable

should within 120m and E9230 power cable should within 140m.


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2. Loosen the four hexagonal screws on the four corners of the top cover with M5 hexagon wrench,

and remove the top cover of the box.

Figure 2 Loosen the screws on the top cover

3. Remove the four M5 fastening screws, four M3 fastening screws and the corresponding copper

lugs in the box with a Phillips screwdriver ( 5) and keep them for use.

Figure 3 Remove the fasten screws in the box


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Proprietary

4. Pull the blue sub-cable through the blue heat shrink tube ( 5,15 mm), and insert the exposed

copper core into the copper lug. Finally, cramp the copper core and the copper lug together with

pliers.

Figure 4 Fasten the copper lug and the sub-cable with plier

Copper lug Plier Heat Shrink Tube

5. Push the blue heat shrink tube to the connection end of copper lug, and heat the heat shrink tube

with hot hair or lighter to make the hot heat shrink tube wrap the copper lug tightly. Seal and

insulate the black sub-cable in the same way.

Figure 5 Seal and insulate the sub-cable


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6. Use a cutter to make a gap on the inner circle of the rubber ring (about 7mm) for the cable entering

into the box, as shown below.

Figure 6 Make a gap on the inner circle

The gap on the inner circle of the rubber ring should not exceed 10mm to assure the goodwater-proof pressure.

7. Push the sub-cable, with heat shrink tube and copper lug fixed, into the box through the cable holes.

OUTPUT cable hole is for the unshielded power cable (41.5mm2, 0.5m) and INPUT cable hole is

for the shielded power cable (24mm2).

Figure 7 Push the sub-cable through the cable hole


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8. Fasten the copper lugs of the two sub-cables to the corresponding contacts with two M5 fasten

screws and a Phillips screwdriver ( 5), shown as below.

Note that a curved wiring should be made for the blue sub-cable to keep it from the contacts with thesilkscreen RTM(+) above.

Fasten the unshielded power cable with the M3 fasten screw to the corresponding left contact;

fasten the shielded layer of the shielded power cable with the M3 fasten screw to the corresponding

right contact.

Figure 8 Fasten the sub-cable to the contact

Connect the blue sub-cable to the busbar with silkscreen NEG (-) above; connect the black

sub-cable to the busbar with silkscreen RTM(+) above.

A curved wiring should be made to keep the blue sub-cable from the busbar with the silkscreen

RTM(+) and to avoid heating the blue sub-cable by transient overload of current.

Use a multimeter to measure the resistance value between busbar NEG(-) and RTM(+) to make

sure there is no short circuit.


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9. Make sure that the rubber ring of the top cover is pressed in the notch and then cover the top cover.

Make sure that there is no rubber ring exposed.

Figure 9 Inspect the sealing of the top cover

10. Fasten the four hexagonal screws on the four corners of the top cover with M5 hexagon wrench.

Figure 10 Fasten the screws on the top cover

Fix the two screws a and b, but not too tight, and then fix screw c and screw d, but not too tight.

Finally, tighten all of the four screws.


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11. Loosen and remove the four screws on R9100/E9230 cabinet with M6 hexagon wrench, as shown

below. Align the installation hole on the installation panel to the screw locations on R9100/E9230

cabinet, and fasten the installation panel to the side of R9100/E9230 with the four screws and an

M6 hexagon wrench.

Figure 11 Fasten Installation Panel

The box should be installed on the side of R9100/E9230 near power supply connector

12. Align the box installation holes to the installation holes on the installation panel, as shown below.

Fasten the box to R9100/E9230 cabinet with the screws delivered with the box and an M5 hexagonwrench.

Figure 12 Install the box on the cabinet


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13. Connect the left grounding terminal of the cabinet to t outdoor copper busbar; and make the

shielded layer of the power cable (24 mm2) grounded with the grounding clip within 1 distance

from the DC transfer box.

Figure 13 Grounding

R9100 E9230 DC Transfer Box Installation Guide R1.1(201011)

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