This document describes the current planned product and feature description and release. However, the
specifications, configuration and the release plan contained in this document are subject to change without any
notice due to NEC's continuing design improvement.
All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated in any form for by any means without the written permission of NEC Corporation.
All designations used in this document can be trademarks, the use of which by third parties for their own
purposes violates the rights of their owners.
This manual describes the required knowledge and procedure to install the LTE system (eNodeB, hereafter referred to as
eNB).
GThis manual targets the 700MHz All-in-one Type eNB.
Target Reader
This manual is intended for the LTE system installation personnel and operation and maintenance personnel of a network
operator.
Manual Structure
•Section 1 Overview
Describes the system structure, equipment names and the main specification of the equipment.
•Section 2 Equipment Appearance
Shows the appearance of eNB equipment and its dimensions.
•Section 3 Equipment Installation Conditions
Shows the required space to install eNB equipment.
•Section 4 Interface Conditions
Shows the cable connection system diagram and eNB equipment interface.
•Section 5 Installation
Describes the cautions when carrying the equipment and the procedure to install eNB equipment.
•Section 6 Cable Work
Describes the procedure to work on various types of cables.
•Section 7 Voltage Check
Describes the procedure to check the voltage of the eNB equipment.
Symbols Used in This Manual
In this manual, the following symbol is used to show notes. When reference to a note is required, it is expressed as "Refer to
[i]."
G CCC...CCC (CCC...CCC : note text)
4
Precautions
!
!
!
Precautions
The alert labels in this manual and attached to the eNB equipment body indicates the items you must follow to prevent
potential injury and safety hazard to you and other people, and perform the operation safely. Please read this manual
thoroughly before starting any operations.
Also, this manual must be kept in a safe place, so that you can read it whenever required.
When alert labels are directly attached to the equipment, always read the content.
This manual is intended for the LTE system installation personnel and operation and maintenance personnel of a network
operator.
Safety Instructions
The "Safety Instructions" provides safety instructions for the LTE system installation operations. For other items, read the
equipment manuals.
Definitions of Alert Categories
The following symbols categorize the dangers and level of damage that occurs when the content is ignored or wrong
procedure was performed.
DANGER:
This symbol indicates that there is explicit life-threatening danger that may cause death or
serious injuries if this item is ignored and the equipment is handled wrongly.
WARNING:
This symbol indicates that it may cause death or serious injuries if this item is ignored and the
equipment is handled wrongly.
CAUTION:
This symbol indicates that it may cause injuries and physical damage if this item is ignored and
the equipment is handled wrongly.
5
Precautions
Alert Labels
The following shows the alert labels attached to the equipment. If an alert label is attached, always follow the instruction
written on the label.
Federal Communications Commission
Changes or modifications not expressly approved by NEC Corporation could void the userʼ s authority to operate the
equipment. (Section 15.21)
Section 15.105 (a) Class A Warning Label
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
About the Safety Instructions
When you find a safety instruction in this manual, be sure to read the instruction before starting the work.
The following safety instructions, especially regarding items that may cause death or injury to you and other people in this
manual are listed by their alert categories.
6
Alert Category: CAUTION
!
Precautions
CAUTION:
About the Work in General
•Before starting the work, check the area of evacuation at the time of disaster.
•Do not work wearing slippers. They may cause injury by falling, etc.
•Be careful not to stumble over cables, parts and tools while working. It may cause
injuries and accidents.
•Be careful not to get the sleeves and hems of the working clothes caught. It may
cause injuries and accidents.
•Do not place liquid such as water into the equipment, and do not touch the
equipment with wet hands. Moisture in the equipment may cause electrocution
and equipment failure. In case liquid gets into the equipment, turn off the
equipment power and request repair.
• Do not dismantle or alter the equipment. It may cause electrocution, fire and
equipment failure.
•When installing or removing the equipment, cure the floor surface of the installed
location to prevent damage by dropping parts.
About Handling the eNB Equipment and SFP
•When handling eNB equipment itself and SFP, wear globes (thin cotton gloves).
Working with bare hands may cause burns, injury and accidents.
•Use correctly the parts for testing such as SFP, tester and cable referring to their
user manuals.
•When handling the eNB equipment and the SFP, wear a wrist band as an antistatic
measure. If you do not take any antistatic measures, the static electricity may
damage the equipment and the SFP.
About Handling High Voltage/ High Current
•Only the installation worker can touch the eNB equipment . Inside eNB
equipment, there are high voltage/ high currents flows, and they may cause
accidents.
•Always perform ground connection. Not following this instruction would cause
system failure by lightening and electrocution.
•When measuring voltage/ current, take appropriate insulating measures such as
covering the measurement terminal and the unused tool parts with insulating
tapes. Contact of measurement terminal and other terminals, or short-circuit by
tools may cause electrocution and accidents.
7
Precautions
Notes on Running the System
In "Notes on Running the System", the notes to protect the equipment from failure are described. To run the system normally,
follow the notes to operate.
Environment Conditions on Running the System
The following shows the usage conditions of eNB equipment. To run the system normally, consider the following items
during installation operation.
CategoryDetails
InstallationInstall in a limited access area.
Temperature and
humidity
Liquid- Do not place liquid such as water and oil near eNodeB.
VibrationeNodeB is a precision instrument, so do not expose to vibration of
Heat dissipation- Natural cooling of eNB satisfies all the environmental conditions.
- Do not ventilate outside air.
- Refer to the following and check that the temperature and humidity
are appropriate. Also, check that there is no condensation.
Vertical Setup
-33ºC to +50ºC (No sunlight)
-33ºC to +45ºC (With sunlight)
Horizontal setup
-33ºC to +45ºC (No sunlight)
-33ºC to +40ºC (With sunlight)
The above temperature limits of operation environment drops by
2.5ºC for every 1km of altitude rise.
standard level (Telcordia NEBS GR-63-CORE Zone4) or more.
- To gain the expected heat dissipation, eNB has a radiator for natural
cooling on its surface. Natural cooling radiator, for its physical
characteristic, must be set up so that the fin part is vertical or
horizontal.
- No cooling method such as cooling by fans is used for eNodeB.
- There is no periodic replacement parts such as air filters.
- No always-driving part such as a fan is used for eNodeB.
8
Precautions
Notes on Running the System in General
•Before installing the equipment, remove all connector caps attached to the equipment side external interface connectors
to which external cables are planned to be connected.
Removing the connector caps, etc. in a high place may result in the connector caps dropping.
- If external cables are not connected right after equipment installation, place outdoor weather resistant tapes on the
temporary connector caps as waterproof treatment.
•In case you touch the equipment for maintenance, there may be places on the equipment reaching high temperature.
Wear protection such as gloves when handling the equipment.
•Do not allow foreign objects such as screws, wire rods and metal scraps inside the eNB Equipment. They may cause eNB
equipment failure by equipment damage and short-circuit.
•Wear antistatic shoes while working.
•When working after rain, wipe the water drops on the equipment before opening the maintenance window.
9
Precautions
Notes on Handling the eNB Equipment and SFP
•To prevent static electricity, always wear globes (thin cotton gloves) and a wrist band as antistatic measures when
working on the eNB equipment, inserting or removing SFP into/from the equipment.
By static electricity the electrical parts of the equipment or the SFP may be damaged. The grounding terminal of the wrist
band is connected to the earth bonding point in the maintenance window of the equipment.
10
Precautions
Notes on Handling the Power
•Do not turn the power ON/ OFF unless required.
Notes on Handling the Cables and Connectors
•Do not swing or bend the cable with force. It may cause the cable to break or damage the connector.
•Do not remove the optical connector cap unless connecting the connector. If the optical connector is damaged or gets
dust on it, it may cause communication failure.
•Use the tools and parts such as cables correctly, referring to their user manuals.
•Tie the external cables without putting stress, meaning without twisting and pulling on the equipment connector part.
•When removing the connector or the waterproof cap to mate again, clean the mating parts.
•Depending on the environment condition, the FullAXS connector surface may become rough, and touching it by bare
hands may cause the plastic toughening agent to irritate the skin. If the toughening agent gets on to your skin, wash it
thoroughly.
This manual describes the installation of eNodeB (hereafter called eNB) NL Rel 3.0.
GThis manual is created as a standard version.
1.1System Structure
The installation target in this manual, All-in-one Type eNB is a micro-miniature base station equipment which can be
installed out of doors. Its micro-miniaturization was accomplished by unification of the parts: the interface part to upper level
lines, call processing control part, monitor control part, Baseband processing part (BB part), TRXBB part, radio amplifier part
and radio function part. By this, the space required for installation, installation man-hours, installation parts and maintenance
man-hours are all reduced and the degree of freedom in selecting the installation location and direction is increased.
Figure 1
shows the installation image of All-in-one Type eNB.
14
Figure 1All-in-one Type eNB Installation Image
1.2Equipment Names
Table 1 shows the equipment type and displayed code applicable to this manual.
Table 1Equipment List
No.Equipment TypeDisplay CodeNote
1Band 13: 700MHzMB4300-n313Power source: DC -48V
Transmission output: 5w x 2ports
1.3Main Specifications
Table 2 shows the main specifications of All-in-one Type eNB.
9Quake Resistance- Telcordia NEBS GR-63-CORE Zone 4
- IEC 60721-2-6: Zone 4
10
11
12
13
EMC StandardFCC Part15 Subpart B Class A
Waterproof/DustproofIP65 (IP66 with cover)
Surge Limit- Power voltage (outdoors)
Conforms to CE marking
L-E 1.2/50μs, ± 0.5kV 8/20μs
L-L 1.2/50μs, ± 0.5kV 8/20μs
- External alarm interface
Conforms to CE marking
L-E 1.2/50μs, ± 1kV 8/20μs
- Backhaul interface
Conforms to CE marking
L-E 1.2/50μs, ± 1kV 8/20μs
- Lightening SURGE
L-E 1.2/50μs, 10kV 8/20μs, 5kA
L-L 1.2/50μs, 2.5kV 8/20μs, 1.25kA
Safety StandardsCSA 60950-1, 60950-22
16
Equipment Appearance
2Equipment Appearance
The following shows the equipment appearance and equipment flat surface appearance of All-in-one Type eNB.
1Equipment Appearance
Figure 2Equipment Appearance
17
Equipment Appearance
2Equipment Flat Face Appearance
18
Figure 3Equipment Flat Face Appearance
Equipment Installation Conditions
3Equipment Installation Conditions
The following shows the clearance condition for single installation of All-in-one Type eNB. (In case of "Ladder mount/ wall
mount/ pole mount/ cross arm mount or suspension mount” .)
Figure 4Single Installation Clearance
G
1Make sure the temperature is 50ºC or lower at all the front, back, left and right sides.
2Make sure air ventilation is possible through the top face.
19
Interface Conditions
4Interface Conditions
4.1Cable Connection System Diagram
Figure 5 shows the cable connection system diagram for All-in-one Type eNB. Table 3 shows the list of connectors and
legends.
Figure 5Cable Connection System Diagram
G
1Install dedicated power supply cable and breaker to the eNB equipment from the power source facility (DCPD).
Breaker would work as the equipment's breaker.
2Connector type on the backhaul network side depends on the remote equipment.
3Figure 5
4Broken line in Figure 5
omits ACPDB master, ACPDB, storage battery, UPS equipment, etc.
may change depending on installation contract, scope of work and installation design.
20
Table 3Connector List/ Legend
SymbolDetailsSymbolDetail
Out of preparation rangeRound waterproof (P)
IEC60130-9
Interface Conditions
Attachment to equipment main
body/ installation cables
N type waterproof (P)Optical 2-core waterproof
N type waterproof (J)Optical 2-core waterproof
Out of preparation range, or
parts different by office
condition or design
RJ-45+waterproof boots (P)Square waterproof boots
Round waterproof (J)
IEC60130-9
boots (P)
boots (J)
Square waterproof boots
(P)
(J)
RJ-45+ waterproof boots (J)M6 crimping terminal
21
Interface Conditions
4.2External Interface
The following shows the interface locations, names and details on bottom face, top face and maintenance window of All-inone Type eNB.
4.2.1Bottom Face External Interface Locations/ Names and Interface Details
1Bottom Face External Interface Locations and Names
Figure 6External Interface Locations and Names (Bottom Face)
2Interface Details
No. in FigExternal Interface LabelExternal Interface Name
(1)BH (O)
(2)BH (E)
(3)EXT ALM
(4)-48V DC
(5)RET
(6FGFrame ground
(7)GPS
Table 4External Interface Details (Bottom Face)
Backhaul interface (Optical)
Backhaul interface (Electrical)
External alarm interface
Power input interface
Antenna tilt control interface
L1 GPS interface
22
4.2.2Top Face External Interface Locations/ Names and Details
1Top Face External Interface Locations and Names
Interface Conditions
Figure 7External Interface Locations and Names (Top Face)
2Interface Details
Table 5External Interface (Top Face)
No. in FigExternal Interface LabelExternal Interface Name
(1)ANT 0
(2)ANT 1
RF antenna interface 0
RF antenna interface 1
23
Interface Conditions
4.2.3Maintenance Window Interface Locations/ Names and Details
1Maintenance Window Interface Locations and Names
Figure 8Maintenance Window Image
2Interface Details
No. in FigExternal Interface LabelExternal Interface Name
(1)LMT
Table 6Maintenance Window Interface Details
LMT interface
24
5Equipment Installation
This section shows the installation procedure of All-in-one Type eNB.
G
1Before installing the equipment, remove all connector caps attached to the equipment side external interface
connectors to which external cables are planned to be connected.
Removing the connector caps, etc. in a high place may result in the connector caps dropping.
2If external cables are not connected right after equipment installation, place outdoor weather resistant tapes on
the temporary connector caps as waterproof treatment.
5.1Cautions on Carrying the Equipment
The following shows the cautions on when carrying the All-in-one Type eNB.
G
1Carrier of All-in-one Type eNB must wear working gloves and shoes.
2When carrying the equipment into the premise, perform required curing on the route.
Equipment Installation
3Carry the equipment in its package box to prevent damage while carrying.
4When the equipment goes through the inspection door, cure the opening to prevent damage to the building
and equipment.
5.1.1Temporary Placement of Equipment
If temporarily placing All-in-one Type eNB on the floor, place it carefully as shown in Figure 9 to prevent damage to
connectors and protrusions.
Figure 9Temporary Placement Image
25
Equipment Installation
5.1.2Carrying the Equipment by the Handles
When carrying All-in-one Type eNB, the flange part (shaded part) on both sides of the main body can be used as handles.
Refer to Figure 10
.
Figure 10Handling Parts Used for Carrying
GWhen handling the equipment, be careful not to damage the connectors on the bottom face of equipment.
If you place the equipment vertically on the floor, it may damage the connectors on the bottom face.
26
5.1.3Carrying Equipment by Hoisting Up/ Down
When hoisting the equipment up/ down, use eye-bolts and follow the procedure below.
Equipment Installation
1Insert eye-bolts into the screw holes on the sides of the equipment as shown in Figure 11
.
Figure 11Attaching eye-bolts
2Hoist the equipment using a crane, etc. up to a higher place or down to a lower place by placing ropes in the eye-
bolts as shown in Figure 12
3After carrying the equipment, remove the eye-bolts.
.
27
Equipment Installation
28
Figure 12Hoist up/down Image
Equipment Installation
5.2Equipment Installation Forms
All-in-one Type eNB has the following installation forms considering the ease of installation.
•Ladder mount/ Wall mount/ Pole mount
Vertical setup
•Cross arm mount/Suspension mount
Horizontal setup
5.2.1Installation Examples of Ladder/ Wall/ Pole/ Cross arm/ Suspension Mount
The following shows the images of ladder/ wall/ pole/ cross arm/ suspension mount of All-in-one Type eNB.
1Ladder mount/ Wall mount/ Pole mount
Figure 13Installation Images Part 1
29
Equipment Installation
2Cross Arm Mount/ Suspension Mount
Figure 14Installation Images Part 2
GWhen setting up the equipment horizontally, set it so that the mounting hardware is on the top face.
All-in-one Type eNB (ladder/ wall/ pole/ cross arm/ suspension mount) is installed using the dedicated mounting hardware
which is the standard installation method. For details on the dedicated mounting hardware, refer to the following figure.
Figure 15Dedicated Mounting Hardware
31
Equipment Installation
5.3.2Installation Method
The following shows the method to install All-in-one Type eNB (ladder/ wall/ pole/ cross arm/ suspension mount).
The following shows the image to mount the dedicated mounting hardware on the installation surface.
1Wall/ Ladder Mount
32
Figure 16Wall/ Ladder Mount Installation Image
2Pole Mount
Equipment Installation
Figure 17Pole Mount Installation Image
GThe bands and any ledge to put on the mounting hardware must be prepared by the installation company or
the customer.
33
Equipment Installation
3Cross Arm/ Suspension Mount
Figure 18Cross Arm/ Suspension Mount Installation Image
GCross Arms, suspension parts and cross arm fixing bolts on the power source column, etc., suspension part
mounting bolts, wires between poles must be prepared by the installation company or the customer.
34
Equipment Installation
5.3.3Installation Procedure
The following shows the procedure to install All-in-one Type eNB (ladder/ wall/ pole/ cross arm/ suspension mount).
Table 9 shows the cables and connectors used for this equipment.
Table 9Used Cables and Connectors
External Interface/
Name
Power source input
interface -48V DC
GPS interface / GPSN type
External alarm
interface / EXT ALM
Optical BH interface /
BH(O)
Connectors on EquipmentConnectors on Cable
Connector
type
Square bipolarTE
waterproof (J)
RJ-45TE
LC 2-core
(MMF core
radius 50 μm)
1st line: Vender name
2nd line: Vender model
name
FOAC FullAXS
BULKHEAD HOUSING +
square bipolar
DDK
N-SR-J-1.5D
FOAC FullAXS
BULKHEAD HOUSING +
RJ45
TE
FOAC FullAXS
BULKHEAD HOUSING +
LC 2-core
Connector
type
FullAXSTE
N type
waterproof
RJ-45TE
LC 2-coreTE
1st line: Vender name
2nd line: Vender model
name
FullAXS POWER
FLOATING or FullAXS
POWER FIXED
General-purpose
connector. No vender/
model name specified.
FullAXS SIGNAL
FLOATING
FOMM50 LEAD4.8mm
FullAXS LC/DPXLC/DPX
Metal BH interface /
BH(E)
Antenna tilt control
input interface / RET
46
LC 2-core
(MMF core
radius 62.5
μm)
LC 2-core
(SMF)
RJ-45TE
Round
waterproof (J)
IEC60130-9
TE
FOAC FullAXS
BULKHEAD HOUSING +
LC 2-core
TE
FOAC FullAXS
BULKHEAD HOUSING +
LC 2-core
FOAC FullAXS
BULKHEAD HOUSING +
RJ45
Amphenol
AISG-RECE-CONNESOCKET-TYPE01
LC 2-coreTE
FOMM62.5 LEAD4.8mm
FullAXS LC/DPXLC/DPX (Model name not
fixed: in discussion with
TE)
LC 2-coreTE
FOSM LEAD4.8mm
FullAXS LC/DPXLC/DPX
RJ-45TE
FullAXS SIGNAL
FLOATING
Round
waterproof (P)
IEC60130-9
AISG general-purpose
Table 9Used Cables and Connectors
Cable Work
External Interface/
Name
RF antenna interface /
ANT0, ANT1
Connectors on EquipmentConnectors on Cable
Connector
type
N type
waterproof (J)
1st line: Vender name
2nd line: Vender model
name
N(F)4H BULKHEEAD
18.0-7.0
Connector
type
N type
waterproof (P)
1st line: Vender name
2nd line: Vender model
name
General-purpose
connector. No vender/
model name specified.
47
Cable Work
6.2Power Cable Connection (-48V DC)
Figure 34 shows the position of the connector used to connect the power cable.
Figure 34Bottom Face Cable Connection Position (Power Connector)
48
Cable Work
6.2.1Power Cable Connection Composition
The following shows the connection composition of the power cable. There are two types of power cable: the Floating type
and the Fixed type.
Figure 35Power Connection Cable Composition
49
Cable Work
6.2.2Power Cable Connection Procedure
The following shows the procedure to connect the power cable.
G
1Check that the corresponding breaker is OFF when mating the power connector.
2Move the Inner and Outer straight to the insertion direction. Inserting them at an angle or twisting them may
damage the connector.
3Perform the connection while holding the cables close to the equipment, so that the connectors do not drop out
by the cable weight, etc.
4The Outer, Inner and the connectors are made out of plastic. Stepping on them or banging them may damage
them, so handle them with care.
5Even if the Outer is fixed, twisting the cable may place load to the internal connector and damage it. When
laying cables, be careful not to twist them.
6After mating, discard the waterproof cap attached to the cable. The wind, etc. may break the cord, and the cap
may drop.
7When disconnecting the power cable, turn the power off from the power source.
8When laying cables, always keep the bend radius to 66 mm or more.
50
6.2.2.1Floating Type Cable Connection Procedure
The following shows the procedure to connect the Floating type cable.
1Insert the connector part of the power cable to the equipment side connector.
(1) Connect the connector latch of the power cable towards the mounting hardware side of eNB equipment.
Cable Work
51
Cable Work
(2) Push in the connector of the power cable in until the latch mates.
GPushing in by force holding the mold part may damage the connector part. Make sure to hold the
connector part when connecting.
2Insert the power cable Inner straight into the connector on the equipment.
GWhen inserting the power cable Inner, there would be friction between the inner cable and the Inner, so
hold the cable with your hand while inserting.
After inserting the power cable Inner, pull the cable while still holding the cable with your hand, to closely
fit the mold part and the Inner.
52
3Rotate the power cable Outer clockwise to fix it in place.
Cable Work
53
Cable Work
6.2.2.2Fixed Type Cable Connection Procedure
The following shows the procedure to connect the Fixed type cable.
GInserting the power cable by force at a wrong connector position or with the connector facing upside down may
damage the connector and the printed circuit board inside the equipment. Do not insert the cable by force, and check
the direction of the power cable connector again.
1Positioning with the white marking, insert the power cable into the equipment connector until the Inner is beside
the guide on the equipment side connector.
2Pushing the power cable Outer, rotate it clockwise to fix it.
54
6.3Backhaul Cable Connection
6.3.1Metal Type Backhaul Cable Connection (BH(E))
Figure 36 shows the location of the connector to connect the backhaul (Electrical) cable.
Cable Work
Figure 36eNB Bottom Face Cable Connection Position (Backhaul interface (Electrical))
The following shows the composition of the backhaul connection cable (Electrical).
The following shows the procedure to connect the backhaul cable (Optical).
G
1When connecting cable to BH(O), remove the waterproof cap on BH(O) and put it on BH(E).
2Move the Inner and Outer straight to the insertion direction. Inserting them at an angle or twisting them may
damage the connector.
3Perform the connection while holding the cables close to the equipment, so that the connectors do not drop out
by the cable weight, etc.
4The Outer, Inner and the connectors are made out of plastic. Stepping on them or banging them may damage
them, so handle them with care.
5Even if the Outer is fixed, twisting the cable may place load to the internal connector and damage it. When
laying cables, be careful not to twist them.
6After mating, discard the waterproof cap attached to the cable. The wind, etc. may break the cord, and the cap
may drop.
Cable Work
7When laying cables, always keep the bend radius to 30 mm or more.
1Insert the LC 2-core connector part into the equipment SFP, until the latch mates.
59
Cable Work
2Insert the Inner straight into the equipment SFP.
GWhen inserting the Inner, there would be friction between the inner cable and the Inner, so hold the cable
with your hand while inserting.
3Rotate the Outer clockwise to fix it in place.
60
6.3.3Notes on Handling Optical Cables
The following shows the notes on handling the optical cables.
G
1When applying surplus treatment to the optical cable connecting the BH(O) connector of this equipment and
the termination box, keep the outdoor armored cable bend radius to 120 mm (240 mm in diameter) or more.
2When applying surplus treatment inside the termination box, keep the able bend radius to 30 mm (60 mm in
diameter) or more for the parts without outdoor armored cable.
3Applying too much force on the optical cable may damage it. Connect the optical cable so that it is not twisted.
4When fixing the optical cable, tie the optical cable so that it is not twisted.
Cable Work
Figure 40Surplus Treatment of Optical Cable
•Cleaning Equipment SFP and Optical Cable LC Connector
Use the cleaning utensil (stick type) (for φ 1.25) to wash the ferrule (pin-shaped) end-face and side-face of the contact
terminal on the SFP and optical cable LC connector mating part. (Alcohol cannot be used together)
GDo not reuse the cleaning utensil already used once. Invisible dust is attached on the used utensil so reusing it
may damage or contaminate the optical cable.
61
Cable Work
6.4GPS Cable Connection (GPS)
Figure 41 shows the position of the connector to connect the GPS cable.
Figure 41Bottom Face Cable Connection Position (GPS connector)
6.4.1GPS Cable Connection Procedure
The following shows the procedure to connect the GPS cable.
1Insert the GPS connector into the GPS connector on the eNB equipment.
2After holding the ring on the GPS cable against the GPS connector on the eNB equipment, tighten until the male
screw ridges of the GPS connector on the eNB equipment are invisible.
Recommended tightening torque is 0.7 N•m to 1.1 N•m.
62
Cable Work
Figure 42GPS Cable Connection
3To prevent the mating part loosening, it is recommended to protect the connector on the eNB equipment up to
the cable (so that the cable side connector is completely covered) with outdoor weather-proof tape.
The following shows the procedure to connect the antenna cable.
1Insert the antenna cable connector into the RF connector on the eNB equipment.
2Holding the ring on the antenna cable against the RF connector on the equipment, tighten the ring of the antenna
cable until the male screw ridges of the RF connector on the equipment are invisible.
Recommended tightening torque is 0.7 N•m to 1.1 N•m.
69
Cable Work
Figure 55Antenna Cable Connection
3To prevent the mating part loosening, it is recommended to protect the connector on the eNB equipment up to
the cable (so that the cable side connector is completely covered) with outdoor weather-proof tape.
Figure 56Connector Protection Example (ANT)
70
6.9Connector Details
6.9.1Power Connector Pin Allocation
The following shows the pin allocations on the power connector installed on the eNB equipment.
Table 10Terminal Number and Signal Names
Pin No.Signal name
Cable Work
1
2
-48V DC
0V
Figure 57Power Connector Pin Allocations
71
Cable Work
6.9.2Antenna Tilt Control Connector (IEC60130-9)
The following shows the pin allocations for the antenna tilt control connector on the eNB equipment.
Table 11Terminal Number and Signal Names
Pin No.Signal nameAISG Requirement
1
2
3
4
5RS485 A
6
7
8
+12V DC nominalNot supported
-48V DC nominalNot supported
RS485 BWould be supported
RS485 GNDFor eNB, it is supported. Whether it is used or note depends on RET
10V -30V DCWould be supported
DC returnWould be supported
N/CReserved for future extension.
support situation.
Would be supported
72
Figure 58Pin Allocations for Antenna Tilt Control Connector
6.9.3External Alarm Interface (EXT ALM)
The following shows the pin allocations of the external alarm interface (EXT ALM) on the eNB equipment.
Table 12Pin Number and Signal Name
Pin No.Signal name
1Output 1 (Make)
2Output 1 (Break)
Cable Work
3
4
5Input 1
6
7
8
Output 1 (Common)
Input 1-G
-
Input 2-G
Input 2
Figure 59Pin Allocation for External Alarm Interface (EXT ALM) Connector
73
Voltage Check
7Voltage Check
7.1Cable Side Power Connector Pin Location Polarity
The following shows the pin location polarity image and details of the cable side power connected to the Power Distribution
Board (PDB) side breaker.
Figure 60Cable Side Power Connector Pin Location Polarity
74
7.2Voltage Check Procedure
The following show the procedure to check the voltage.
1Prepare the tester in advance. Check that the tester operates normally before starting the test.
2Check the target location by sight and by reading out.
3Insulate and cure the necessary parts of the cable side power connector, DC power distribution board and DC
breaker to prevent short-circuit accidents.
4No voltage check of the breaker
Check that the target breaker on the power distribution board side is turned OFF by sight, and perform no voltage
check on the power distribution board side using the tester.
1Check that the red lead bar is connected to the + on the tester, and black lead bar to the –COM on the tester.
2Change the tester range to VDC range. For a tester with the Ampere range, check with two people or more
that the measurement is not performed in Ampere range and that the test bar insertion positions to the tester
are correct.
3Connect the red lead bar of the tester to the plus (+) pole of the target power distribution board breaker, and
the black lead bar to its minus (-) pole.
4Check that the value displayed on the tester is 0V (no voltage, logical value).
5Disconnect both the lead bars of the tester from the breaker terminals.
Voltage Check
5Cable Side Power Connecter Voltage Check
Check that the target power distribution side breaker is turned OFF by sight, and perform no voltage check of the
cable side power connecter using the tester.
1Connect the red lead bar of the tester to the 0V terminal (pin 2) on the cable side power connector, and the
black lead bar to its -48V terminal (pin 1).
2Check that the value displayed on the tester is 0V (no voltage, logical value).
75
Voltage Check
6Keep each lead bar (red and black) of the tester connected as is, and instruct another worker to turn ON the target
breaker.
GAfter the worker checks the position of the target breaker by the drawing, the target device name displayed
on the power distribution and the destination plate attached to the power cable, the worker turns ON the
target breaker. Moreover, the supervisor would always be present and checks on the work.
7Check that the breaker switch is turned ON, and 48V (logical value) is displayed on the tester.
8Keeping the red lead bar connected to the 0V terminal (pin 2) of the cable side power connector, slowly move the
black lead bar to the grounding terminal (E or FG) and connect to it. Upon connection, check that the voltage
changes from 48V to 0V (logical value).
76
Voltage Check
9Keep the black lead bar connected to the grounding terminal (E or FG), slowly move the red lead bar from the 0V
te rmi nal ( pin 2 ) of the c able side con nect or to the -48V terminal (pin 1), and connect to it. Upon connection, check
that the voltage changes from 0V to -48V.
10Check that the polarities of the logical value and the actual measurement value are the same, the voltage value is
almost the same as the above logical value, in a range allowed by the device characteristics, or is an appropriate
voltage specified by the rectifier.
11When the voltage check is complete, check the target breaker again and turn the breaker OFF (upon turning OFF,
check again that the cable side power connector is in 0V (no voltage)).
12Remove the cure materials, and attach the power distribution board breaker terminal protection cover (fix by
screws and check the tightening).
13Connect the cable side power connecter to the power connector on the equipment side.
14Clean up the site.
77
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.