Instruction/ maintenance manual of the product Dual Inline Tower Mounted Amplifier System ADC
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ADCP-75-214 Issue 2 Septemb er 2006 138377 2 Rev A ClearGain ® 1800 MHz and 2100 MHz Dual Inline T ower Mounted Amplifier System User Manual.
ADCP-75-214 • Iss ue 2 • Septem ber 2006 • Preface Page ii COPYRI GHT © 2006, AD C T elecommu nications, Inc. All Rights Reserv ed REVISION HISTORY TRADEMARK INFORMA TION ADC and Clear Gain are r egi stered trademar ks of AD C T el ecommun ication s, Inc.
ADCP-75-21 4 • Issue 2 • Septem ber 2006 • Pre face Page iii © 2006, ADC Teleco mmunication s, Inc. T ABLE OF CONTENTS Content Pag e ABOUT THIS MAN UAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADCP-75-214 • Iss ue 2 • Septem ber 2006 • Preface Page iv © 2006, ADC Teleco mmunication s, Inc. Blank.
ADCP-75-21 4 • Issue 2 • Septem ber 2006 • Pre face Page v © 2006, ADC Teleco mmunication s, Inc. ABOUT THIS MANUAL This doc ument describes the A DC Clea rGain 1800 and 2100 MHz D ual Inline T ower Mounte d Amplifier (TMA) System s and provides com plete instruc tions for in stalling these pr oducts o n a commu nication s tower .
ADCP-75-214 • Iss ue 2 • Septem ber 2006 • Preface Page vi © 2006, ADC Teleco mmunication s, Inc. LIST OF ACRONYMS AISG – Antenna Interface Stan dards Gr oup ANT – Ante nna AW G – Am eric.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 1 © 2006, ADC Teleco mmunication s, Inc. 1 PRODUCT OVER VIEW 1.1 General Description The ClearGain 1800 or 2100 M Hz D ual Inline T ower Mounted A mp.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 2 © 2006, ADC Teleco mmunication s, Inc. 1.2 Functional Description The basi c purpose o f a ClearGain Dual Inlin e TMA system is t o amplify the uplink si gnal just after the an tenna .
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 3 © 2006, ADC Teleco mmunication s, Inc. MHU – locate d as clos e to the antenna as possi ble, perf orms the a mplif ier fu nction on the uplink s ignal.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 4 © 2006, ADC Teleco mmunication s, Inc. Figur e 3. T ypical MHU Clamp Mounting K it Comp onents 1. When in stalling o n a pole a clamp ki t ( Figur e 3 ) is re quired. The kit is designe d for tu be diameter s of 30 to 140 mm.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 5 © 2006, ADC Teleco mmunication s, Inc. GROUNDING and B ONDING CONSIDERA T IONS • Grounding i s ver y important in to wer top application s. Shipped wit h each MHU, is a 4 mm (#6 A WG), one-met er (39-inc h) ground cable wit h single hole crimp lug con nectors on both end s.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 6 © 2006, ADC Teleco mmunication s, Inc. 2.3 PDU Installati on 2.3.1 Mechanical Attachment of PDU The PDU should be mount ed in accor dance with local code using appr opriate hard ware. The PDU has tw o mounting holes on either s ide, as sho wn in Fi gure 4 .
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 7 © 2006, ADC Teleco mmunication s, Inc. 2.3. 1.3 Rack M oun t (Op tio nal ) A mount ing br ac ket, s hown in Fig ure 5 is a v ailable that allo ws the PDU to be m ounted in a ra ck. If mounting PD U in a rack , refer to the ins tallation draw ing provid ed with the mou nting bracket .
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 8 © 2006, ADC Teleco mmunication s, Inc. Figure 6 sho ws the cabl e terminati ons on the f ront of the PDU. Connect the cables a s follo ws: (Left to Rig ht: Po wer C able , Alarm Cabl e, RS- 485, T hree MHU (B ias- T) Cab les, an d Grou nd Cab le) Figure 6.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 9 © 2006, ADC Teleco mmunication s, Inc. Figur e 7. PDU Alarm Logic and RS-485 Con nections 2.3.3 Setting the DIP Switch o n the PDU PDU has one set of dip sw itches to enable or disable the M HU ports.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 10 © 2006, ADC Teleco mmunication s, Inc. 2.4 Bias-T Instal lation 2.4.1 Mechanical Attachment and Cable Connectio ns The B ias -T is inst alle d ei ther in lin e wit h th e ant enn a fe ede r cab le or dire ctl y to th e BT S an tenn a port.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 11 © 2006, ADC Teleco mmunication s, Inc. 3 TROUBLESHOOTING When a faul t occu rs wi th th e sys tem, the re d al arm L ED o n th e PD U and the P DU d ry-al arm contact are acti v ated. I n such a ca se, troubl eshoot for p roblems as follo ws: 1.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 12 © 2006, ADC Teleco mmunication s, Inc. 4 TROUBLESHOOTING 4-POR T CLEARGA IN DUAL INLINE DUAL DUPLEX TOWER MOUNTED AMPLIFIERS T rouble is visu all.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 13 © 2006, ADC Teleco mmunication s, Inc. 4.1 T r oubleshooting 1. Observe and record PDU LED stat us. Disab le o r disconne ct RF from BTS. Remove any sur ge protect ors. Di sconnect Bias-T from the ant enna f eedli ne / hardli ne / jumpe r / pr otecto r .
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 14 © 2006, ADC Teleco mmunication s, Inc. 4. Re-connec t Bias-T with a T adapte r . V erify v oltage on the T adapter _______ VDC. Normal is 15 VDC. 5. Re-connec t to origi nal conf igurat ion and ret urn to serv ice.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 15 © 2006, ADC Teleco mmunication s, Inc. 4.3 T r oubleshooting Flowchart (For Systems With Three-Port MHUs) If dir ect ed by the flowcha rt, refe r to t he trou ble shoo tin g m atrix in Section 4.4 or to th e return loss swee p guide in Section 4.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 16 © 2006, ADC Teleco mmunication s, Inc. 4.4 T r oubleshooting Matrix If dir ected in Sect ion 4.3 to c onsult a t roubleshoot ing matri x, see Ta b l e 1 be low .
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 17 © 2006, ADC Teleco mmunication s, Inc. 4.5 Return Loss Sweep Guide 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 RL dB v1 v2 v1 v2 1 8 270-A 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 RL dB v1 v2 v1 v2 RETURN LO SS S WEEP GUIDE FOR THE RECEIVE S ECTION OF THE MHU s .
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 18 © 2006, ADC Teleco mmunication s, Inc. 5 SPECIFICA TIONS 5.1 1800 Masthead Unit Ta b l e 2 pro vides typ ical spe cif ication s for the 1800 Masthead Unit.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 19 © 2006, ADC Teleco mmunication s, Inc. 5.2 2100 Masthead Unit Ta b l e 3 pro vides typ ical spe cif ication s for the 2100 Masthead Unit.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 20 © 2006, ADC Teleco mmunication s, Inc. 5.3 PDU (Power Distribution Unit) Ta b l e 4 pro vides typ ical spe cif ication s for the PDU.
ADCP-75-214 • Is sue 2 • Septem ber 2006 Page 21 © 2006, ADC Teleco mmunication s, Inc. 5.4 Bias-T Ta b l e 5 pro vides typ ical spe cif ication s for the Bias-T . T able 5. Bia s-T Specifica tion CATEGORY PARAMETER SPECIFICATION RF P ath Frequ ency Ran gy (MHz) 800–2200 Inser tion Lo ss (max) 0.
ADCP-75-214 • Iss ue 2 • Septem ber 200 6 Page 22 6 CUSTOMER INFORMATION AND ASSISTANCE © 2006 , AD C Te lecomm unica tions, Inc . All Rights Reserved 1 3 944-M WRITE: ADC TELECOMMUNICA TION S , INC PO BO X 1101, MINNEAPOLI S , MN 55440-1101, U S A ADC TELECOMMUNICA TION S ( S 'PORE) PTE.
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