NP8-800-10-PRUPico-BTS 10W PRU

Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 122 of 1 APPENDIX I: USER'S MANUAL Wireless Network Systems CDMA Network Guide CDMA PicoBTS TM Hardware Description CDMA? Simply Samsung. CDMA PicoBTSTM Hardware DescriptionPage 2 About this document Document title: Samsung CDMA PicoBTS TM hardware description Document version: 1 Document file name: WS01.03.01.00.fm CD version: 1 CD number: WSN01.01.00 Document date: January 2000 CDMA hardware version: 1.0 CDMA software version: 1 Samsung Telecommunications America, Inc. Customer Care Center 1601 E. Plano Parkway, Suite 150 Plano, Texas 75074, U.S.A Phone: 972.761.7500 Customer Care: 888.987.4357 FAX: 972.761.7501 Internet address: http://www.samsungtelecom.com ©1999 Samsung Telecommunications America, Inc. All rights reserved. No reproduction in whole or in part allowed without prior written approval. This material is subject to change without notice. CDMA PicoBTSTM Hardware DescriptionPage 1 Table of Contents 1 Overview 1 1.1Functions 1 1.2PicoBTS TM system features 2 1.3General specifications 3 2Operation 6 2.1Overview of operation 6 2.1.1 Air interface with CDMA handsets6 2.1.2 Components6 2.2PicoBTSTM system main unit (PMU) 7 2.2.1 The PMCC9 2.2.2 PicoBTSTM system channel card (PCC)11 2.2.3 PMU transmit and receive interface card (TRIC)11 2.2.4 PMU time and frequency card (TFC)12 2.2.5 PMU heat management system (HMS)13 2.2.6 PMU power supply assembly (PSA)13 2.3PMU communication with the network 13 2.4PRU 13 3 Physical characteristics 15 3.1PMU assembly 15 3.2PRU physical characteristics 19 4 Maintenance 21 4.1Maintenance goals and philosophy 21 4.2Maintenance planning 21 4.2.1 Life expectancy21 4.2.2 Failure types22 4.3Performance requirements 22 4.3.1 Industry compliance requirements22 4.3.2 Maintainability22 4.3.3 Mean time to repair (MTTR)23 CDMA PicoBTSTM Hardware DescriptionPage 2 5 Detailed specifications 24 5.1Mechanical packaging 24 5.1.1 Mounting24 5.1.2 Cabling and connections25 5.1.3 Power Consumption25 5.2PicoBTSTM Compliance Standards 26 CDMA PicoBTSTM Hardware DescriptionPage 3 List of Figures Figure 1 PicoBTS TM system in communication with the BSC complex and the MSC 2 Figure 2 PicoBTS TM system flexible configurations5 Figure 3 PMU block diagram8 Figure 4 PMCC logical interfaces9 Figure 5 PMU back panel with connectors and mounting hardware15 Figure 6 PMU with open service door16 Figure 7 Inside of PMU door17 Figure 8 PMU service panel18 Figure 9 PRU as it is shipped from the factory20 CDMA PicoBTSTM Hardware DescriptionPage 4 List of tables Table 1: PicoBTS TM system specifications3 CDMA PicoBTSTM Hardware Description Page 1 1 Overview ThisdocumentdescribestheSamsungCDMAPicobase transceiversystem(PicoBTS TM ),modelSCBS-208P30. Thisdocumentisintendedforpersonnelwhoadminister, install,provision,configure,maintain,ortroubleshoota PicoBTS TM basestationinaSamsungCDMAbasestation system(BSS),aswellastraffi cengineerswhodealwith systemsizingandperformance. 1.1 Functions TheSamsungPicoBTS TM basestationispartoftheSamsung CDMAbasestationsystem(BSS)(seeFigure1).The PicoBTS TM basestationprovidesaCDMAradiointerface betweenmobileCellular usersandthebasestationcontroller (BSC). TheSamsungBSSconsistsofthefollowingelements: •PicoBTS TM basestation • Basestationcontroller(BSC) • Gatewaycommunicationinterconnectionnetwork(GCIN) • Basestationmanager(BSM) TheBSCcontrolsthebasestations,providingconfiguration, trafficmanagement,maintenancemonitoring,andother features.TheGCINprovidestwointerfaces: • ItconnectstheBSMtotheBSCandPicoBTS TM basestation • Itprovidesinter-BSCsofthandoffconnectivity TheBSMprovidestheremoteuserinterfacetothePicoBTS TM basestation. CDMA PicoBTSTM Hardware Description Page 2 TheairinterfacecomplieswithIS-95A. ThePicoBTS TM basestationbackhaulusessuperframe(SF),an unchannelizedT1(AMI)andaproprietaryprotocol. Figure1PicoBTS TM basestationcommunicationwi ththeBSCan dth eMSC 1.2 PicoBTS TM base station features ThePicoBTS TM basestationwasspecificallydesignedto facilitaterapid,low-costdeploymentwithminimalcable lossesbetweentheantennaandtheprocessingsubsystem.The PicoBTS TM basestationisdesignedforindoorandoutdoor installationinavarietyoflocationssuchasrooftops, monopoles,towers,andotherlocations. Tosupportthesedesigngoals,thePicoBTS TM basestation offersthefollowingdesignfeatures. GCIN RS-422 BSC0 BSC9 T1links T1 PicoBTS TM RS-422 BSM BSC10BSC11 BSC1 toMSC T1links toMSC T1links toMSC PicoBTS TM PicoBTS TM PicoBTS TM PicoBTS TM PicoBTS TM PicoBTS TM PicoBTS TM PicoBTS TM T1 T1 T1 PicoBTS TM basestation basestation basestation basestation basestation basestation basestation basestation basestation basestation CDMA PicoBTSTM Hardware Description Page 3 •PicoBTS TM mainunit(PMU),alight-weightmainprocessor unitthatmountsindoorsoroutdoorspole,wall,ortower. •PicoBTS TM radiounit(PRU),alight-weightradiounitthat mountsatorneartheantennatocutinsertionlosses.ThePRU isavailablein10Wmodels. • ThePMU-PRUinterface,aheavy-duty,weather-proof PMU-PRUinterconnectcable. • Sectorizedoromniconfiguration: - Omni(onePRUperPMU) -2-sector(twoPRUsperPMU) - 3-sector(threePRUsperPMU) • Aflexiblestructureusinganyofthefollowingconfigurations: - Omni,singlefrequency - Omni,twoorthreefrequencies - Two-sector,singlefrequency - Three-sector,singlefrequency • Antennasflush-mountedtothePRU. • 64pooledchannelelements. • Singlechannelelementsupportforpilot,sync,andaccess channelsforeachsector. 1.3 General specifications Table1liststhegeneralPicoBTS TM basestationspecifications. Table1:PicoBTS TM basestationspecif ications Parameters Measurements Vaules Rackdimensions PMU(HxWxD) 26.2inx24.8inx18.6in PRU(HxWxD) 11.6 inx22 .6 inx6.1in CDMA PicoBTSTM Hardware Description Page 4 Weight PMU 115lb PRU 40.7lbwithoutbrackets Power Power 1270W Vol tage 100to260Vac Inputfrequency 47to63Hz Batterybackupin put +48Vdc ExternaltothePMU Operatingenvironment Temperature -40° Cto+50°C(varies withaltitude) Humid…

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ELECTRONICS SAMSUNG TELECOMMUNICATIONS AMERICA, INC. 1130 East Arapaho Road Richardson, TX 75081 USA TEL 972-761-7987, FAX 972-761-7909 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Rd. Columbia, MD 21406 USA Tuesday, March 21, 2000 Regarding 1) FCC ID: NP8-1900-10-PRU 2) FCC ID: NP8-800-10-PRU Gentlemen: It has come to my attention that that the Commission has asked for specifications on antennas that will be supplied with the above referenced machines. Samsung neither sells, ships, nor specifies any antenna or antenna systems for these transmitters. The antenna selection is left entirely to the customer. If you need anything further or have any questions please call me at 214-336-4145 or email to [email protected] . Regards, Paul Wooley Staff Engineer, Product Integrity Samsung Telecommunications America

Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 68 of 1 APPENDIX F: LABEL INFORMATION

Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 72 of 17 APPENDIX G: EUT PHOTOS Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 73 of 17 G1: UNIT ASSEMBLED (INSIDE VIEW) G2: UNIT ASSEMBLED (TOP VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 74 of 17 G3: UNIT ASSEMBLED (BOTTOM VIEW) G4: UNIT ASSEMBLED (TOP VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 75 of 17 G5: UNIT ASSEMBLED (SIDE VIEW) G6: UNIT ASSEMBLED (SIDE VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 76 of 17 G7: FRONT COVER (TOP VIEW) G8: FRONT COVER (INSIDE VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 77 of 17 G9: DUPLEX WITH CONNECTORS (TOP VIEW) G10: DUPLEX WITH CONNECTORS (BOTTOM VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 78 of 17 G11: DUPLEX WITH CONNECTORS (ANGLED VIEW) G12: 1 ST EMI CONTAINMENT (INSIDE VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 79 of 17 G13: 1 ST EMI CONTAINMENT (TOP VIEW) G14: 2 ST EMI CONTAINMENT (INSIDE VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 80 of 17 G15: 2 ST EMI CONTAINMENT (TOP VIEW) G16: PA (POWER AMPLIFIER) COVER (INSIDE VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 81 of 17 G17: TRANSCEIVER BOARD (TOP VIEW) G18: TRANSCEIVER BOARD (BACK VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 82 of 17 G19: POWER AMPLIFIER MODULE (TOP VIEW) G20: POWER AMPLIFIER AND DRIVER STAGE PCB (BACK VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 83 of 17 G21: POWER AMPLIFIER MODULE HOUSING (TOP/FRONT VIEW) G22: POWER AMPLIFIER MODULE HOUSING (BACK VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 84 of 17 G23: PRC CARD (FRONT VIEW) G24: PRC CARD (BACK VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 85 of 17 G25: INSIDE HOUSING WITH CARDS REMOVED (SIDE VIEW) G26: HOUSING INSIDE WITH CARDS REMOVED (TOP VIEW) Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 86 of 17 G27: INSIDE HOUSING WITH PLATE CLOSED G28: INSIDE HOUSING WITH PLATE CLOSED (DIFFERENT ANGLE)

Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081/ A0387 Page 66 of 2 APPENDIX E: PRODUCT DESCRIPTION Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 Page 67 of 2 The PicoBTS (Base Transceiver Subsystem) identifies the complete system which consists of TX/RX Antenna, PMU (PicoBTS Main Unit) and PRU (PicoBTS Radio Unit) The PMU controls the overall operation of the system, provides frequency and time references via an internal GPS receiver and serves as the interface between the PRU and the BSC (Base Station Controller). The PRU is the radio transceiver unit. Maximum power output is 10watts. This version of the PRU is for single channel operation only.

Page 88 of 1 Company Name: Samsung Telecommunications America FCC ID: NP8-800-10-PRU Work Order Number 2000081 / A0387 APPENDIX H: SCHEMATICS 181S 1.1 DCS 10Watts PicoBTS DPA A3 4 5Wednesday, August 18, 1999 Title Size Document Number Rev Date: Sheet of +5V +28V Attenuator Controlling Voltage U20 HYBRID COULPER U22 7805 28V C88 39p L4 6.8n Q7 AH-1 L3 12n C92 68p(2012) C93 0.1u(2012) C94 4.7u(TANTAL) C84 39p R40 430 R38 12 R41 430 C85 39p C89 2p Q6 MRF181 R47 10K R45 1K VR6 5K C90 10n C96 68p C95 1n C100 4.7u(50v) + C101 100n(3225) R42 200(0805) L5 15n C91 68p(0805) C98 1n C99 100n(3225) C97 68p C81 39p P1 3N7 IN 1 OUT 2 GND 3 C86 39p C82 2p C83 5.6p R46 1K R50 5.1 R49 5.1 R48 5.1 R51 5.1 D4 PIN Diode D3 PIN Diode R43 33k R44 33k C87 39p R39 51 C202 3.6p R200 0 C201 68p C200 0.1u R201 0 R202 0 R203 0 R204 0 TO MRF184 RF_IN From Vatt (PLC) To Vcpl (PLC) MRF184S {RevCode} DCS 10Watts PicoBTS DPA A3 1 5Wednesday, August 18, 1999 Title Size Document Number Rev Date: Sheet of +28V +28V +28V +28V C22 5.1p C20 39p(1414) SW1 SW SPST C14 39p C12 39p(1414) R7 5.1 R3 3.6k R2 3.6k C2 22u Q1 MRF184 C11 100n(3225) C8 47p(1414) C17 9.1p VR1 5K C9 47p(1414) C13 39p(1414) C3 100n C10 100n(3225) C21 4.7p C18 6.8p C23 9.1p C16 9.1p R1 330 C4 22u(tantal) + C7 4.7u(tantal) + RT1 680 t R4 9.1K R5 9.1K J1 5566-08A + 5 + 6 + 7 + 8 + 1 + 2 + 3 + 4 F1 EMI filter C15 39p R6 1K C5 0.1u C19 39p(1414) U1 UM4040CIM3-10 C6 0.1u C223 0.1u C216 4.7u C217 68p C218 0.1u C212 39p C213 39p F2 EMI filter P2 3N7 IN 1 OUT 2 GND 3 C105 1pF 1 2 RF OUT[TO 186] RF IN[FROM 181] +5V-5VSWDETECT +26V DCS 10Watts PicoBTS DPA A3 3 5Wednesday, August 18, 1999 MRF186 Title Size Document Number Rev Date: Sheetof +28V +28V +28V +28V +28V +28V W801 BALUN W802 BALUN W803 BALUN W804 BALUN C42 9.1p C37 39p C44 39p C45 39p C50 1000p SW2 SW SPST C38 39p C35 39p C48 1000p R26 180 R27 180 R24 9.1K R22 9.1K C30 22u C26 22u(tantal) Q2 MRF186 C52 22u C49 39p C29 100n C51 100n C31 100n C33 1000p C39 0.3p C40 13p C43 5.6p C68 9.1p C62 39p C70 39p C71 39p C78 1000p SW3 SW SPST C63 39p C60 39p C76 1000p R34 180 R37 180 R32 9.1K R30 9.1K C55 22u C53 22u Q4 MRF186 C80 22u C77 39p C54 100n C79 100n C56 100n C58 1000p C65 0.3p C66 13p C69 5.6p R31 100 R29 100 RT2 680 t C32 4.7u C46 4.7u C36 39p VR4 5K C47 39p C34 1000p R23 470 R25 470 RT3 680 t C75 39p R28 470 C61 39p C59 1000p VR5 5K C74 4.7u C57 4.7u R33 470 R20 9.1K R21 9.1K R36 9.1K R35 9.1K C27 0.1u C28 0.1u C72 0.1u C73 0.1u U8 UM4040CIM3-10 U3 UM4040CIM3-10 C41 1p C67 1p C25 0.1u C64 0.1u C214 39p C215 39p C222 0.1u C221 0.1u C107 1p 1 2 C106 1p 1 2 RF OUT[TO DETECTOR] RF IN[FROM 184] DETECTOR {RevCode} DCS 10Watts PicoBTS DPA A3 5 5Wednesday, August 18, 1999 Title Size Document Number Rev Date: Sheetof +5V +5V +5V -5V +5V +5V +5V U25 U23 7805 U27 Temp> SENSOR R52 50(6231) C102 39p U10A AS278-12 J3 8 J1 3 J2 5 V2 7 V1 6 Vs 2 GND1 I GND2 4 R56 100K D5 MMBD914L 1 2 Q8 MMBT3904L 3 1 2 R57 30K U12 AD622 +IN 3 -IN 2 +Vs 7 RG1 1 RG2 8 REF 5 OUT 6 -VS 4 C106 68p U11 PST02_A_1 RF_IN 7 VCC 5 GND3 3 GND2 2 GND1 1 PWR_OUT 6 TEMP_REP 4 C108 0.1u R54 1k R55 1k C107 0.1u C109 0.1u R53 5.11K C105(SKIP) 0.1u U9 EBU137 IN 1 OUT 2 CIRC_OUT 3 F2 EMI filter U24A AS278-12 J3 8 J1 3 J2 5 V2 7 V1 6 Vs 2 GND1 I GND2 4 R206 100K D6 MMBD914L 1 2 Q9 MMBT3904L 3 1 2 R207 30K R208 100 R210 100 R209 68 C104 68pF R214 50(6432) R217 50(6231) C103 68p C24 68p R211 100 R213 100 R212 150 R218 1K VR7 2K C226 39p R215 50(6432) R216 50(35W) R262 1K C222 0.1u C221 0.1u C232 0.1u C222 0.1u RF FROM 186 COMBINER DETECT TX_SW1 RF_OUT 28V28V TX_SW1 XCVR OUTPUT CPLING U22 Output Power Limiting Circuit {RevCode} DCS 10Watts PicoBTS DPA A4 2 5Wednesday, August 18, 1999 Title Size Document Number Rev Date: Sheet of +28V -5V Voltage Attenuation Characteristic of Attenuator VR1 for output power limit (ALC) VR2 for determining the minimum voltages of the attenuator 7812 U21 +5V -5V LT1054 U26 U2A LM2902 + - 3 2 1 4 11 U2B LM2902 + - 5 6 7 4 11 U2C LM2902 + - 10 9 8 4 11 R13 10K R15 10K R12 10K R14 10K R17 10K 10K R80 0.1U1 C1 D1 MMBD914 R18 1M VR2 1K VR3 2K R16 10K R11 10K D2 hmss2850 C225 100p R19 1k L2 220nH L1 27nH C204 68p C203 39p R205 0 C207 68p C208 0.1u C220 0.1u C205 0.1u C206 0.1u C209 68p C210 0.1u C211 4.7u C219 68p C227 10uF + C228 100uF + C229 0.002uF R220 100K R219 20K R8 82 R9 100 R10 100 C230 4.7u C234 0.1u To Vatt (MRF181) From Vcpl (MRF181) To Detector Circuit

APPLICATION FOR PART 24, SUBPART H CERTIFICATION Samsung Telecommunications America 1130 East Arapaho Road Richardson, TX 75081 972-761-7987 MODEL: Pico-BTS 10W PRU FCC ID: NP8-800-10-PRU March 2, 2000 This report concerns (check one):Original Grant: X Class II Change: Equipment Type: Transmitter Deferred grant requested per 47 CFR 0.457 (d) (1) (ii)?Yes:No: X If yes, defer until: Date Company name agrees to notify the Commission by: (date) of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37?Yes:No: X If no, assumed Part 15, subpart B for unintentional radiators - the new 47 CFR REPORT PREPARED BY: EMI Technician:Daniel Wilkerson Administrative Writer:Melissa Fleming Document Number: 2000081-/ A0387 No part of this report may be reproduced without the full written approval of NTS Company Name: Samsung Telecommunications America FCC ID:NP8-800-PRU Work Order Number2000081 / A0387 Page 2 of 154 TABLE OF CONTENTS 1.0INTRODUCTION....................................................................................................................................4 1.1RELATED SUBMITTAL(S)/GRANT(S)..........................................................................................................5 1.2EMISSIONS EQUIPMENT LIST.....................................................................................................................5 1.3TEST SYSTEM DETAILS............................................................................................................................5 1.4TEST METHODOLOGY..............................................................................................................................6 1.5TEST FACILITY........................................................................................................................................6 2.0SYSTEM TEST CONFIGURATION......................................................................................................7 2.1JUSTIFICATION.........................................................................................................................................7 2.2EUT EXERCISE SOFTWARE.......................................................................................................................7 2.3CONFORMANCE STATEMENT....................................................................................................................8 3.0STANDARD REQUIREMENTS.............................................................................................................9 3.1FCC PART 24.355: FREQUENCY TOLERANCE...........................................................................................9 3.2FCC PART 24.381: AUXILIARY TEST TRANSMITTERS...............................................................................9 3.3FCC PART 24.913: EFFECTIVE RADIATED POWER LIMITS....................ERROR! BOOKMARK NOT DEFINED. 3.4FCC PART 24.915(B): MODULATION LEVELS......................................ERROR! BOOKMARK NOT DEFINED. 3.5FCC PART 22.915(D)(1): AUDIO FILTER CHARACTERISTICS................ERROR! BOOKMARK NOT DEFINED. 3.6FCC PART 22.917(F): MOBILE EMISSIONS IN BASE FREQUENCY RANGE.ERROR! BOOKMARK NOT DEFINED. 3.7FCC PART 22.919: ELECTRONIC SERIAL NUMBERS.............................ERROR! BOOKMARK NOT DEFINED. 4.0TEST RESULTS.....................................................................................................................................10 4.1 FREQUENCY STABILITY FUNCTION OF TEMPERATURE.....................................................................................17 5.0 FIELD STRENGTH CALCULATION, AND RADIATED TEST METHODOLOGYERROR! BOOKMARK NOT DEFINED. 5.1FIELD STRENGTH CALCULATION..........................................................ERROR! BOOKMARK NOT DEFINED. Company Name: Samsung Telecommunications America FCC ID:NP8-800-PRU Work Order Number2000081 / A0387 Page 3 of 154 APPENDIX LISTING APPENDIX A: TEST PHOTOS......................................................................ERROR! BOOKMARK NOT DEFINED. APPENDIX B: OCCUPIED BANDWIDTH PLOTS..........................................................................................20 APPENDIX C: ANTENNA SPURIOUS PLOTS................................................................................................26 APPENDIX D: FREQUENCY STABILITY PLOTS..........................................................................................43 APPENDIX E: PRODUCT DESCRIPTION.......................................................................................................66 APPENDIX F: LABEL INFORMATION...........................................................................................................68 APPENDIX G: EUT PHOTOS..........................................................................................................................71 APPENDIX H: SCHEMATICS.........................................................................................................................88 APPENDIX I: USER’S MANUAL...................................................................................................................122 TABLE INDEX TABLE 1: EMISSIONS EQUIPMENT LIST...................................................................................................................5 TABLE 2: TEST SYSTEM DETAILS..........................................................................................................................5 TABLE 3: RADIATED EMISSIONS AT 10 METERS (GPS LINK).................................................................................10 TABLE 4: RADIATED EMISSIONS AT 3 METERS (GPS LINK)...................................................................................11 TABLE 5: RADIATED EMISSIONS AT 10 METERS (GPS LINK B BAND).....................................................................12 TABLE 6: RADIATED EMISSIONS AT 3 METERS (GPS LINK B BAND).................…

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