Baicells Nova430e User manual

Nova430e
Outdoor 4x250mW Two-Carrier TDD eNodeB
Installation Guide
BaiBLQ_3.0
August 2023
Version 1.04

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
2
About This Document
This document is intended for personnel installing the Baicells Nova430e Outdoor 4x250mW eNodeB (eNB)
product. The product overview is followed by the procedures for properly installing, performing basic
configuration, and verifying the eNB is operational. Please be advised that only personnel with the
appropriate electrical skills and experience should install this device. This document is based on software
version BaiBLQ_3.0. The Nova430e model number is pBS3101SE.
Terms used in this document or related to Long-Term Evolution (LTE) are listed in alphabetical order and
described in Acronyms and Abbreviations, which can be found at Baicells.com > Resources > Documents.
New in This Release
The following updates have been provided in this release:
•The software BaiBS_QRTB migrated to BaiBLQ_3.0 at this release, and all Graphical User Interfaces
(GUIs) depicted in this document reflect the BaiBLQ_3.0 software.
Copyright Notice
Baicells Technologies copyrights the information in this document. No part of this document may be
reproduced in any form or means without the prior written consent of Baicells Technologies.
Disclaimer
All products, services, and features bought from Baicells Technologies are subject to the constraints of the
company's business contract and terms. All or part of the products, services, or features described in this
document might not be your specific Baicells network. Unless stated in the contract, Baicells Technologies
does not make any explicit or default statement or guarantee about the contents of this document.
Unless stated otherwise, this document serves only as a user guide, and all descriptions / information /
suggestions mean no guarantee, neither explicit nor implicit.
The information in this document is subject to change at any time without notice. For more information,
please consult with a Baicells technical engineer or the support team. Refer to the Contact Ussection.
Disposal of Electronic and Electrical Waste
Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed of with
unsorted waste. Please contact your local recycling authority for disposal of this product.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
3
Revision Record
Date
Version
Description
SMEs/Contributors
04-Aug-2023
1.04
Updated for BaiBLQ 3.0
Blake Volk
21-Feb-2023
1.03
Updated for QRTB 2.12
Blake Volk, Anna Ch
21-Oct-2022
1.02
Updated for QRTB 2.10.6
Blake Volk, Anna Ch
04-Mar-2022
1.01
Initial release for QRTB 2.9.4
Warren Lai, Sonny May, Abel Lamas
Resources
•Documentation - Baicells product datasheets, this document, and other technical manuals can
be found at Baicells.com > Resources > Documents.
•Support - How to open a support ticket, process an RMA, and the Support Forum are at
Baicells.com > Support.
Contact Us
Baicells Technologies
5700 Tennyson Pkwy, #300, Plano, TX 75024, USA
Phone: [phone]
Email: [e-mail] for North America or con[email protected] for all other regions
Website: baicells.com
Safety Information
For the safety of installation personnel and the protection of the equipment from damage, please read all
safety warnings. If you have any questions concerning the warnings, before installing or powering on the
base station, contact the Baicells support team.
WARNING: IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry, and be familiar
with standard practices for preventing accidents.
WARNING: Read the installation instructions before you connect the system to its power source.
WARNING: Equipment installation must comply with local and national electrical codes.
WARNING: This product relies on the existing building or structure for short-circuit (overcurrent)
protection. Ensure that the protective device is rated no greater than 20A.
WARNING: Do not operate this wireless network device near unshielded blasting caps or in an
explosive environment unless the device has been modified and qualified for such use.
WARNING: To comply with the United States Federal Communications Commission (FCC) radio
frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 in (20 cm) or more
from the body of all persons.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
4
Table of Contents
1 Overview ........................................................................................................................................7
1.1 Introduction .................................................................................................................................... 7
1.2 Features........................................................................................................................................... 8
2 Installation Preparation .................................................................................................................10
2.1 Materials ....................................................................................................................................... 10
2.2 LEDs and Interfaces....................................................................................................................... 12
2.3 Location and Environment ............................................................................................................ 13
2.4 Grounding and Lightning Protection............................................................................................. 13
2.5 Weatherproofing........................................................................................................................... 13
2.6 CloudCore Account........................................................................................................................ 14
3 Installation....................................................................................................................................15
3.1 Process Overview.......................................................................................................................... 15
3.2 Install GPS Antenna....................................................................................................................... 16
3.3 Install eNB on Pole or Wall............................................................................................................ 17
3.3.1 Install on Pole..................................................................................................................... 18
3.3.2 Install on Wall..................................................................................................................... 20
3.4 Connect Cables.............................................................................................................................. 21
3.4.1 Cable Laying Requirements................................................................................................ 21
3.4.2 Connect RF Cables.............................................................................................................. 22
3.4.3 Connect Ethernet Cable ..................................................................................................... 22
3.4.4 Grounding .......................................................................................................................... 22
3.5 Maintenance Chamber Waterproofing......................................................................................... 25
3.6 Power on to Check LED Status ...................................................................................................... 25
3.7 Configure Basic Parameters .......................................................................................................... 25
3.7.1 Launch the eNB GUI ........................................................................................................... 26
3.7.2 Upgrade Firmware ............................................................................................................. 27
3.7.3 Basic Configuration Overview ............................................................................................ 28
3.7.4 Configure Network Interfaces............................................................................................ 29
3.7.5 Configure the Management Server.................................................................................... 34
3.7.6 Configure Quick Settings .................................................................................................... 37
3.7.7 Configure Carrier Setting.................................................................................................... 38
3.7.8 Reboot................................................................................................................................ 39
3.7.9 Verify eNB Operational Status............................................................................................ 40
FCC Compliance................................................................................................................................... 42
ISEDC Compliance ............................................................................................................................... 42

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
5
List of Figures
Figure 1-1: Nova430e eNB ............................................................................................................................ 7
Figure 1-2: Network Structure ...................................................................................................................... 7
Figure 2-1: Pack Out....................................................................................................................................10
Figure 2-2: LEDs and Interfaces...................................................................................................................12
Figure 2-3: Weatherproofing ...................................................................................................................... 14
Figure 2-4: Weatherproofing GPS Antenna.................................................................................................14
Figure 2-5: CloudCore Login Page ............................................................................................................... 15
Figure 3-1: Installation Process Overview...................................................................................................15
Figure 3-2: GPS Installation Requirements ................................................................................................. 16
Figure 3-3: GPS Antenna Installation ..........................................................................................................17
Figure 3-4: Pre-assembled Brackets............................................................................................................17
Figure 3-5: Omega Clamps ..........................................................................................................................18
Figure 3-6: Attach Bracket to Pole............................................................................................................... 18
Figure 3-7: Attach eNB to Bracket...............................................................................................................19
Figure 3-8: Completed Attachment.............................................................................................................19
Figure 3-9: Mark and Drill Holes .................................................................................................................20
Figure 3-10: Attach With Expansion Bolts...................................................................................................20
Figure 3-11: Attach eNB to Bracket.............................................................................................................21
Figure 3-12: Pole Grounding ....................................................................................................................... 23
Figure 3-13: Grounding Screws ...................................................................................................................24
Figure 3-14: Connecting Cables and Grounding Screws ............................................................................. 24
Figure 3-15: Check LEDs ..............................................................................................................................25
Figure 3-16: GUI Login................................................................................................................................. 26
Figure 3-17: Home Page.............................................................................................................................. 27
Figure 3-18: Configuration Flow.................................................................................................................. 28
Figure 3-19: WAN/LAN/VLAN...................................................................................................................... 29
Figure 3-20: LAN Config Tab........................................................................................................................ 30
Figure 3-21: LGW......................................................................................................................................... 32
Figure 3-22: LGW = Router.......................................................................................................................... 33
Figure 3-23: Static Routing.......................................................................................................................... 34
Figure 3-24: Management Server ............................................................................................................... 35
Figure 3-25: Quick Setting........................................................................................................................... 38
Figure 3-26: Carrier Setting.........................................................................................................................39
Figure 3-27: Reboot..................................................................................................................................... 39
Figure 3-28: Cell Status (eNB GUI) ..............................................................................................................40
Figure 3-29: Cell Status (OMC)....................................................................................................................40
Figure 3-30: OMC Display Settings.............................................................................................................. 41

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
6
List of Tables
Table 2-1: Materials.....................................................................................................................................11
Table 2-2: Installation Tools......................................................................................................................... 11
Table 2-3: LEDs ............................................................................................................................................12
Table 2-4: Interfaces....................................................................................................................................12
Table 2-5: Environment Specifications........................................................................................................ 13
Table 3-1: WAN/LAN/VLAN ......................................................................................................................... 30
Table 3-2: LGW ............................................................................................................................................ 32
Table 3-3: Static Routing .............................................................................................................................34
Table 3-4: Management Server...................................................................................................................36

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
7
1 Overview
1.1 Introduction
The Baicells Nova430e (Figure 1-1) is an advanced two-carrier outdoor eNB that is compliant with Third-
Generation Partnership Project (3GPP) on LTE TDD technology. This 4x250mW eNodeB can operate in
Carrier Aggregation (CA) mode or Dual Carrier (DC)/split mode. The Nova430e supports broadband data
access, providing various data service transformation and transmission capabilities to enable outdoor
wireless coverage. This eNodeB can be used by operators to improve capacity and throughput while
eliminating existing dead zones.
Figure 1-1: Nova430e eNB
The network structure of the Nova430e is shown in Figure 1-2.
Figure 1-2: Network Structure

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
8
As a two-carrier eNB, the Nova430e hardware unit contains two separate eNBs inside one shell. Having
two carriers provides versatile options in how you operate the eNB. The available operating modes are
described in the next section, Features.
The Nova430e primary cell (Pcell) is called Cell 1, and the secondary cell (Scell) is called Cell 2. Each eNB is
pre-configured to simplify the installation. Baicells provides operators with local and Web-based Graphical
User Interface (GUI) software applications to configure and manage individual eNBs and Customer Premise
Equipment (CPE).
Additionally, Baicells offers a centralized Software-as-a-Service (SaaS) solution called CloudCore.
CloudCore includes all of the essential LTE Evolved Packet Core (EPC) network functions, an Operations
Management Console (OMC) for managing multiple sites across the Network, and a Business and
Operation Support System (BOSS) for subscriber management.
This document provides a general description, guidelines, and procedures for installing, entering basic
configuration information, and verifying the operational status of the Nova430e eNB.
1.2 Features
The two-carrier Nova430e eNB can operate in one of several modes:
•Single Carrier (SC)
•CA mode (based on software license)
•DC/split mode (based on software license)
•HaloB mode (embedded in the base software)
•Citizens Broadband Radio System (CBRS) Spectrum Access System (SAS)
SC describes a scenario where the operator wishes to use only one of the two available cells in the eNB.
This may be necessary for operators who have limited licensed spectrum or who are planning to use the
second carrier later as their Network grows. In SC mode, only the primary cell (Pcell), aka Cell 1, is used.
CA provides the ability to aggregate channels from across the full CBRS range, even channels that are not
adjacent. Using CA essentially doubles the downlink capacity when all users have CAT6 or later CPE.
DC (split sector) mode enables the operator to run the Nova430e as two independent carriers for split
sector coverage.
HaloB allows the eNB to function with embedded Mobility Management Entity (MME) capabilities on
board so that the eNB operates independently from the usual cloud connection. HaloB is standard in the
Nova430e as part of the basic software. This enables the user to migrate core network functions to the
eNB.
CBRS SAS is a multi-vendor SAS database where CBRS spectrum use is managed dynamically across
operators. The CBRS band covers 3.55–3.70 GHz. Operators must sign up with a SAS provider, which
handles the dynamic frequency assignment and release process. Baicells provides FCC Part 96 certified
eNBs, including the Nova430e, and CPEs that operate within the Part 96 rules for CBRS. The Baicells eNBs
and CPEs use a Domain Proxy (DP) to connect to the SAS server by leveraging the existing connection with
the OMC.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
9
NOTE 1: Legacy Gen 1 CPEs do not support SAS.
NOTE 2: This installation guide only covers the basic configuration of a single cell for verifying
that the eNB unit is operational during the process of installation. More detailed configuration
guides are available on the Baicells website: Baicells.com > Resources > Documents:
• CloudCore Configuration and Network Administration Guide
• Atom CAT4 CPE Configuration Guide
• Atom CAT6/CAT15 CPE Configuration Guide
• 4G LTE eNodeB Configuration Guide – BaiBLQ (formerly QRTB)
• Carrier Aggregation and Dual Carrier/Split Mode Configuration Guide
• HaloB Solution User Guide
• SAS Deployment Guide
In addition to the Nova430e eNB two carriers and multiple operating modes, the following is a list of other
key features. The Nova430e datasheet providing technical specifications is kept up-to-date on the
Baicells website.
•Supports standard LTE TDD Band 48 (3550 MHz – 3700 MHz)
•Complies with 3GPP Release 15 standards
•Supports 5/10/15/20 MHz bandwidth per carrier
•Provides excellent Non-Line-of-Sight (NLOS) coverage
•Peak rate is a configurable parameter using special Subframe Assignment (SA):
o2x20 MHz, per carrier:
SA1: DL 105 Mbps, UL 28 Mbps
SA2: DL 145 Mbps, UL 14 Mbps
SA6: DL 85 Mbps, UL 35 Mbps
o2x10 MHz, per carrier:
SA1: DL 51 Mbps, UL 14 Mbps
SA2: DL 70 Mbps, UL 7 Mbps
SA6: DL 42 Mbps, UL 17 Mbps
•Supports 96 concurrent users per carrier [x2 carriers (96+96) if operating in DC mode];
upgradeable to higher capacity in future software releases
•Supports TR-069 network management interface
•GUI-based remote Web management using Baicells OMC
•Connects to any IP-based backhaul, including public transmission
•Is lightweight and uses low power consumption to reduce OPEX
•Compact, plug-and-play device with Self-Organizing Network (SON) capabilities
•Can be used for Internet of Things (IoT) with all Standard EPC vendors
•Ensures secure protection against illegal intrusion
•Optional external Global Positioning System (GPS) antenna
•Integrated small cell form-factor for quick and easy installation
•Configured out-of-the-box to work with Baicells CloudCore
•Supports both CA and DC modes

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
10
•Embedded HaloB ("lite" EPC) solution
•Supports CBRS with dual carrier
•GPS synchronization (built-in)
•Built-in Dynamic Host Configuration Protocol (DHCP) Server, Domain Name System (DNS) Client,
and Network Access Translation (NAT) functionality, providing strong high-speed routing
•Supports Transparent Bridge Mode
2 Installation Preparation
2.1 Materials
Check the Nova430e package to ensure it contains the primary components in the pack out (Figure 2-1).
In addition to industry-standard tools, you need the materials described in Table 2-1 and the tools shown
in Table 2-2 during the installation.
Figure 2-1: Pack Out

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
11
Table 2-1: Materials
Item Description
RF antenna cable 50-ohm feeder, ½ jumper
RF antenna Omni or directional dual polarized
Ethernet cable Outdoor CAT6, shorter than 330 feet (100 meters)
It is suggested that the diameter of the cable is 0.3 in ± 0.04 in (7 mm ± 1 mm).
Ground cable If the length of lead is more than 33 feet (10 meters), 6 AWG (10 mm²) grounding
cable should be used.
Table 2-2: Installation Tools
Level bar Marker Knife Pliers
Wrench
Percussion drill and drill
heads Hammer
Phillips-head
screwdriver
Cable vice (crimper) Tape measure
5 mm L-shape Allen
wrench T7 screwdriver head

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
12
2.2 LEDs and Interfaces
Figure 2-2, Table 2-3, and Table 2-4 explain the eNB status indicators and interfaces.
Figure 2-2: LEDs and Interfaces
Table 2-3: LEDs
LED Color Status Description
PWR Green Steady on Power is on
OFF No power supply
CELL2 Green
OFF CELL1 is inactive
Fast flash: 0.1 s on, 0.1 s off CELL1 is deactivated
Slow flash: 1 s on, 1 s off CELL1 is activated
CELL1 Green
OFF CELL2 is inactive
Fast flash: 0.1 s on, 0.1 s off CELL2 is deactivated
Slow flash: 1 s on, 1 s off CELL2 is activated
ALM Red Steady on Hardware alarm
OFF No alarm
Table 2-4: Interfaces
Interface Description
ETH/PoE+ RJ-45 interface (FE/GE). Used for power supply, debug or data backhaul. PoE++, complies
with IEEE 802.3bt standard
GPS GPS antenna interface, N-type connector
ANT0 External antenna interface 1, N-type connector
ANT1 External antenna interface 2, N-type connector
ANT2 External antenna interface 3, N-type connector
ANT3 External antenna interface 4, N-type connector

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
13
2.3 Location and Environment
The Nova430e can be installed on a pole or a wall. For the best signal coverage, place the eNB in an
unobstructed location. In addition to network planning, when determining where to place the eNB,
consider the best location for signal coverage. Avoid locating the eNB in areas with extreme
temperatures, harmful gases, unstable voltages, volatile vibrations, loud noises, flames, explosives, or
electromagnetic interference (e.g., large radar stations, transformer substations). Avoid areas prone to
impounded water, soaking, leakage, or condensation. Environmental specifications are shown in
Table 2-5.
Table 2-5: Environment Specifications
Item Description
Operating Temperature -40°F to 131°F / -40°C to 55°C
Storage Temperature -58°F to 149°F / -50°C to 65°C
Relative Humidity 5 % to 95 % RH
Atmospheric Pressure 70 kPa to 106 kPa
Safety Voltage 42 V to 58 V
2.4 Grounding and Lightning Protection
You must protect the eNB against lightning. All Nova eNBs have a floating ground on the power system.
The following are grounding guidelines.
•The yellow-green ground wire must be at least 6 AWG (10 mm2) diameter.
•Always place the grounding as near as possible to the equipment.
•Connect to a reliable outdoor grounding point (earth) using one ground screw.
•The connection of the grounding points and ground bar needs to be tight and reliable.
Rustproofing the terminals, e.g., with antioxidant coating or grease, is required.
2.5 Weatherproofing
For Radio Frequency (RF) antenna weatherproofing, use cold shrink tubes. To protect the connection
points from weather and climate, clean each connection point before installing cold shrink tubes, per the
following (Figure 2-3).
1. Insert the cable into the cold shrink tube.
2. Tighten the connector.
3. Push the cold shrink tube to the top joint and pull out the strip.
4. Ensure the cold shrink tube is tightly fitted with the connection.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
14
Figure 2-3: Weatherproofing
For GPS antenna weatherproofing, use all-weather electrical tape and mastic tape, per Figure 2-4.
Figure 2-4: Weatherproofing GPS Antenna
NOTE: Make sure that the wrapping direction of the last layer is from the bottom up. The last
layer should be tight enough to keep it from cracking.
2.6 CloudCore Account
The Baicells CloudCore includes the EPC, managed by Baicells, and two operator applications, OMC to
manage network elements, and BOSS to manage subscribers. If you have not already set up a Baicells
CloudCore account, follow the steps below.
Step 1: Open a web browser, and enter the CloudCore address (Figure 2-5):
https://cloudcore.cloudapp.net/cloudcore/
Step 2: Click on the Sign up button.
Step 3: Complete the mandatory fields, and again click on Sign up.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
15
Figure 2-5: CloudCore Login Page
You will receive an email from Baicells. Click on the CloudCore
link to go to the login page.
Enter your login user name (email address) and password to
authenticate.
3 Installation
3.1 Process Overview
Figure 3-1 provides an overview of the installation process.
Figure 3-1: Installation Process Overview

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
16
3.2 Install GPS Antenna
WARNING: Ensure the antenna is connected before powering up the eNB. The wireless signal
transmission power can cause bodily injury and damage to the eNB and RF power amplifier
devices.
Read the following GPS antenna installation requirements before installing it on the eNB and refer to
Figure 3-2.
•No major blocking from buildings in the vicinity. Make sure the space atop is within at least
45 degrees unblocked by any buildings.
•The GPS antenna should be installed within 45 degrees to the lightning rod.
•Do not install the GPS antenna near other transmitting and receiving equipment, to avoid
interference. Do not install it under a microwave antenna or high voltage cable. Avoid the direction
of radiation from other transmitting antennas to the GPS antenna.
•When two or more GPS antennas are installed, it is recommended to keep the spacing of more
than 6.74 feet (2 meters), and install multiple GPS antennas in different locations to prevent
simultaneous interference.
•GPS antenna feeders cannot be grounded together with ground conductors of interfering
equipment such as air conditioners, motors, and pump motors, etc. to prevent external
interference from being introduced into the antenna system.
Figure 3-2: GPS Installation Requirements

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
17
The GPS antenna system includes an antenna and a connector. The two parts should be assembled
according to Figure 3-3.
Figure 3-3: GPS Antenna Installation
After assembling the GPS antenna, the connector must be waterproofed with all-weather electrical tape
and mastic tape. Refer to section 2.5.
3.3 Install eNB on Pole or Wall
The eNB mounting brackets are pre-assembled in manufacturing before packing. One bracket is pre-
installed on the back of the eNB, and the other is for pole or wall mounting, as shown in Figure 3-4.
Figure 3-4: Pre-assembled Brackets

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
18
3.3.1 Install on Pole
The following explains how to install the eNB on a pole.
Check to ensure the diameter of the pole is in the range of 1.6 in–2.8 in (40 mm–70 mm). The position of
the eNB on the pole should be at least 47 in (120 cm) in height. Follow the steps below to install the eNB
on a pole.
1. Unscrew the four nuts on the pole bracket. Slide the two omega clamps to the left, and then turn
them up or down (Figure 3-5).
Figure 3-5: Omega Clamps
2. Place the pole bracket on the pole and turn the two clamps to the proper position as shown in
Figure 3-6. Fasten the four nuts with a wrench.
Figure 3-6: Attach Bracket to Pole

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
19
3. Align the two pins on the eNB bracket to the pin holes on the pole bracket, and lower the pins
vertically into the pin holes, ensuring the hooks on the eNB are firmly attached in the slots on the
pole bracket (Figure 3-7).
Figure 3-7: Attach eNB to Bracket
4. Tighten the screw on the top of the bracket using a Phillips-head screwdriver to complete the
installation (Figure 3-8).
Figure 3-8: Completed Attachment
5. Proceed to section 3.4.

Nova430e Outdoor 4x250mW Two-Carrier TDD eNodeB Installation Guide
20
3.3.2 Install on Wall
Ensure that the wall can bear at least four times the weight of the eNB. Follow the steps below to install
the Nova430e eNB on a wall.
1. Take apart the assembled pole/wall bracket so that only the wall bracket remains.
2. Place the wall bracket on the wall with the arrow facing up, as shown in
Figure 3-9. Mark the drilling locations using a pencil or marker.
3. Drill two holes in the wall to match the size of the wall bracket holes.
Figure 3-9: Mark and Drill Holes
4. Insert the expansion bolts in the marked location. Check the up/down direction of the installation
bracket, and then hang the wall bracket on the expansion bolts. Fasten with flat washers, spring
washers, and nuts (Figure 3-10).
Figure 3-10: Attach With Expansion Bolts