FCC ID: 2AG32BSC7261A249D Aurora6449m

mmW gNB(BSC7261A249D) Quick Guide INTRODUCTION The Baicells mmW is an advanced outdoor millimeter wave integrated base station (gNB), which is designed and developed based on Qualcomm 5G SoC solution. This 49dBm EIRP gNB is low power consumption, subminiature and easy to maintenance. This product helps operators to enhance the coverage performance of 5G networks effectively, improve the capacity of 5G networks and eliminate the blind district, meanwhile it also can help to reduce the system power consumption. HIGHLIGHTS NOTE: Features can vary based on model or region. Standard NR Band n261 5G-NR TDD (3GPP R16 compliant) GUI-based local and remote Web management Supports up to 4x100MHz bandwidth Peak data rate: DL:2Gbps@4CC*, UL:140Mbps@2CC (DDDSU)*

Supports 600 RRC connected Ues*

Supports PDU session setting Supports cell setting Supports Stand Alone (SA) mode: FR2 only, NRDC*

Supports Non Stand Alone (NSA) mode: ENDC*

Supports SCTP control (IKE SCTP) All In One (AIO) small cell form factor for quick and easy installation Highly secured with equipment certification against potential intrusion risk Supports TR-069 network management interface Lower power consumption, which reduces OPEX, can be powered easily by Baicells compact indoor smart UPS TECHNOLOGY Standard 5G NR TDD (3GPP R16 compliant) TDD UL/DL Configuration 5ms periodicity (=1): DDDSU Frequency Band n261 (27.5GHz ~ 28.35GHz) Channel Bandwidth 100MHz x 4CC Multiplexing DL:2, UL:1 Security Radio: SNOW 3G/AES-128 Backhaul: IPsec (X.509 AES-128, AES-256, SHA-128, SHA-256) INTERFACE Ethernet Interface 1 optical (10G SFP+) and 1 RJ-45 Ethernet interface (1 GE) Power Supply

-40VDC to -57VDC, nominal -48VDC Protocols Used IPv4/v6, UDP, TCP, ICMP, NTP, SSH, IPsec, TR-069, HTTP/HTTPs, DHCP Network Management IPv4/v6, HTTP/HTTPs, TR-069, SSH, Embedded 5GC*

VLAN/VxLAN*

802.IQ/VxLAN LED Indicators 4 x status LED PWR/ACT/RUN/ALM Antenna 8x8 dual-polarized antenna elements, built-in with Maximum +/-60 degrees GPS Antenna External GPS antenna, N-Type connector FCC COMPLIANCE This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Warning This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 100cm between the radiator & your body. 1. Appearance 4 Interface Description Description Power interface, connect to -48VDC power supply RJ-45 interface, used for debug or data backhaul. Optical interface (SFP+), connect to external transmission Interface PWR ETH OPT network, used for data backhaul. GPS External GPS antenna, N-female connector. Interface Indicators Identity Color Status Description PWR Green Steady ON

(Reserved) Steady ON The power supply is normal. RUN Green off Fast flash: 0.125s on,0.125s The device is starting up. Slow flash: 1s on, 1s off The device is operating normally. OFF Steady ON No power supply or device fault. The cell is active. Slow flash: 1s on, 1s off The cell is deactivated. ACT Green ALM Red Steady ON OFF The device is fault. No alarm. 2. Installation Installation Material In addition to industry standard tools, you will need the materials described in Table 2-1 during the installation. Item Description Table 2-1 Support Materials DC cord The diameter of DC power cable must be AWG14 or greater

(such as AWG13) with two cores. Ethernet cable Outdoor CAT6, shorter than 100 meters (~109 yards) Optical fiber Ground cable Optical fiber (armor) It is suggested that the diameter of the cable is 71mm. The diameter of grounding cable must be 10mm2 or greater. 5 Installation Tool Leveling instrument Marker pen Percussion drill hammer Knife Vise Wrench Cross screw Cable vice Tape measure driver NOTE: Other accessories have been packed in the packing box. Install GPS Antenna Read the following GPS antenna installation requirements before installing it on the base station. No major blocking from buildings in the vicinity. Make sure the space atop is at least 45 degrees unblocked by any buildings. Avoid installing the GPS antenna in the vicinity of any other transmitting and receiving devices, to avoid interference. The GPS antenna should be installed within 45 degrees to the lightning rod. The GPS antenna system is assembled in manufacturing before packing. The only installation step is to fix the GPS mounting bracket on the base station with the M4*14 screws. NOTE: The base station may adopt different models of GPS antenna, so the GPS antenna may not the same as above figure. But the installation steps that fix it on the base station is the same. Weatherproofing To protect the connection points from weather and climate, clean each connection point before installing cold shrink tubes, per the following figure. 1. Insert the cable into the cold shrink tube. 6 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. Pole Mounting Check to ensure the diameter of the pole is in the range of 1.6 inches to 2.8 inches (40mm to 70 mm). The position of the gNB on the pole should be at least 47 inches (120 cm) in height. The brackets have been pre-assembled in manufacturing before packing. It includes two parts, one is pre-assembled on the back of device. The other is for pole mounting or wall mounting, as shown in Figure 2-1. Figure 2-1 Pre-assembled Device Following will introduce how to fix the pre-assembled gNB on a pole. 7 After mounting, adjust the gNB to a proper angle by adjusting the adjustable bracket. Wall Mounting NOTE: The wall must bear at least 4 times the weight of the gNB. Take apart assembly bracket first, only remains the wall bracket, as shown in Figure 2-2. Figure 2-2 Wall Bracket Following steps introduce how to fix the pre-assembled gNB on a wall. 8 Connect Cables Power ON Power on the gNB, and wait a few minutes while the gNB boots up. Per the previous indicator description in 1 Appearance, check that the LED indicators are lighting as expected. 9

Baicells Baicells Technologies Co.,Ltd. Model Number: BSC7261A249D ee Frequency : 27500-28350MHz a 10 Max Tx Power: 2x46dBm co} : AW Power Supply: -48V===2.5A MAX MAC:XXXXXXXXXXXX S/N:XXXXXXXXXXXXXXXXXXX FCC ID: 2AG32BSC7261A249D

Baicells Technologies Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 3/7/2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AG32BSC7261A249D Baicells Technologies Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature: Back Huang Certification Manager Baicells Technologies Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 3/7/2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AG32BSC7261A249D Baicells Technologies Co., Ltd.(the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing covered equipment. Sincerely, Signature: Back Huang Certification Manager

Baicells Technologies Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AG32BSC7261A249D Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Parts List Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below: Planned Release Date STC: Sincerely, Signature: Back Huang Certification Manager 3/20/2024

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 3/7/2024 SUBJECT: FCC Application for (FCC ID: 2AG32BSC7261A249D) To Whom It May Concern: We, the undersigned, hereby authorize Xinyue Wang at CTTL, Telecommunication Technology Labs, CAICT on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by CTTL, Telecommunication Technology Labs, CAICT on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti- Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Signature Contact Person: Back Huang Title: Certification Manager Company: Baicells Technologies Co., Ltd. Address: 9-10F, 1stBldg., No.81BeiqingRoad, Haidian District, Beijing, China E-mail: huanghu@baicells.com Tel: +86-010-62607100

U.S. Agent Designation for Service of Process - Certification Attestation Letter ATTN.: Reviewing Engineer FRN: 0025156423 FCC ID: 2AG32BSC7261A249D Per section 2.911(d)(7) of the FCC rules, Baicells Technologies Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Baicells Technologies North America Inc FCC Registration Number (FRN): 0032487597 Physical U.S. Company Address: 5700 Tennyson Pkwy, #300, Plano, TX 75024 Contact Person: Jesse Raasch Agent Email Address: jesse@na.baicells.com The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Agent Signed (if different from Applicant): Signed: Signed: Printed name: Back Huang Printed name: Jesse Raasch Title: Manager Title: CTO of Americas Company Name: Baicells Technologies Co., Ltd. Company Name: Baicells Technologies NA Inc Date: 3/18/2024 Date: 3/18/2024