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Ericsson LBI-39128 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    LBI-39128 ericssonz ericssonz Installation & Operation EDACS  Power Monitor Unit[...]

  • Page 2

    LBI-39128 CONTENTS Copyright  March 1995, Ericsson Inc. 2 TABLE OF CONTENTS Page INTRODUCTION ....................................................................................................................................... 6 DESCRIPTION .......................................................................................................[...]

  • Page 3

    CONTENTS LBI-39128 3 TABLE OF CONTENTS (Cont.) Page OPERATION .............................................................................................................................................. 22 STARTUP ......................................................................................................................................[...]

  • Page 4

    LBI-39128 FIGURES AND TABLES 4 LIST OF FIGURES AND TABLES Page Figure 1 - Location of PMU Components.................................................................................................... 6 Figure 2 - Card Layout for PDP Upgraded to VAX .................................................................................... 7 Figure 3 - Lo[...]

  • Page 5

    SPECIFICATIONS LBI-39128 5 SPECIFICATIONS PMU: Mechanical: Width ............................................................ 19 in. (482.6 mm) Height ............................................................ 3.5 in. (88.9 mm) Depth ............................................................. 6 in. (152.4 mm) Weight ............................[...]

  • Page 6

    6 INTRODUCTION This manual describes the installation and operatio n of the Deci bel Produ cts DB8860-base d PMU (Power Mon itor Unit) for non-sim ulcast EDA CS (Enhanced Digital Access Comm unication s Sy stem) repeater sites that use a VA X computer for the Site Controller. This manual covers only those featu res of the Deci bel Products DB8860 t[...]

  • Page 7

    APPLICATION NOTES LBI-3912 8 7 APPLICATION NOTES VAX SITE CONTROLLER COMPUTER Make sure that the Site Controller computer, at the location where this PMU is to be installed, is a VA X model or a PDP model that has been upgraded to a VAX m odel. To determine if a PDP model has been upgraded internally to a VAX m odel, you must look inside the P DP s[...]

  • Page 8

    LBI-39128 INSTALLATION 8 INSTALLATION SITE CONTROLLER HARDWARE Verify that the Site Controller co m puter is a VAX model, or a PDP model that has been upgraded to a VAX model (see the VAX Site Controller heading in the Applications Notes section). If you find that the Site Controller com puter is a PDP model, upgrade kits are available thro ugh Eri[...]

  • Page 9

    INSTALLATION LBI-39128 9 The location of the Application Software and Personality PROMs on the PROM card is shown in Figure 6. When replacin g PROMs, be sure to get each n ew PROM in th e correct location , and w ith the notched end as sh own . Be especially caref ul of location num bers 01 and 02 since these numbers are used for both sets of PROMs[...]

  • Page 10

    LBI-39128 INSTALLATION 10 Parts Required Before you start this procedure, b e sure you have all the parts on hand. The parts for this procedure are sh own in Table 2. Table 2 - Parts for Addition from No PMU QTY PART # DESCRIPTION 1 19D903880P100 or 19D903880P101 Cable - DILOG Panel to PMU Cable - Site Controller computer to PMU 1 350A1380P1 Decibe[...]

  • Page 11

    INSTALLATION LBI-39128 11 Sensor interf ace modu le in the EDAC S Repeater cabinet con taining the transm itter for channel #11 or #13). If the tw o cabinets are next to each oth er in the sam e row, us e a 5-ft 19D903880P120 cable. If the tw o cabinets are across from each other in different rows , use a 15-ft 19D903880P121 cable. 10. Starting wit[...]

  • Page 12

    LBI-39128 INSTALLATION 12 J1 J2 J3 J4 J5 J6 J7 J8 J9 188D6466P2 Cables (5 Each) PORT 7 PORT 5 188D6466P1 Cable PORT 8 PORT 6 Daisy Chain Cable to Power Sensors for Transmitter Channels 1 - 12 Daisy Chain Cable to Power Sensors for Transmitter Channels 11 - 20 Antenna Power Sensor Cable to Power Sensors for Antennas 1 & 2 19C852632G1 POWER SENSO[...]

  • Page 13

    INSTALLATION LBI-39128 13 Power Sensor in terface module conn ector marked “J1”, label the cable “ J 1” and disconnect it from the Power Sensor interface module. 11. If a cable (or an existing 19C852379G1 Chan nel Termination B oard) is connected to the Pow er Sensor interface modu le connector marked “ J 2”, label the cable (or board) [...]

  • Page 14

    LBI-39128 INSTALLATION 14 Procedure The following steps involve equipment in the Site Controller cabinet, except as noted: 1. Mark the cables and w ires going to the old PMU as follows: • Mark “Antennas 1 -4 ” on the cable go ing to the DB- 15 conn ector on th e back of old PMU m arked “Antennas 1-4”. • Mark “Transmitters 1-9” on th[...]

  • Page 15

    INSTALLATION LBI-39128 15 on the back of the PMU (this cable will be re-connected later in the installation). 2. Sw itch the On/Off switch on the b ack of the PMU to the “On” position. 3. Verify t hat th e “PWR” indi cator on th e front panel of the PMU stays on continuously. 4. Verify th at the three other i ndicators on the front panel of[...]

  • Page 16

    LBI-39128 INSTALLATION 16 4. Type 8860 and press the Ent er key . The Operation Select Menu should then appear on the term inal as show n in Fig ure 15 (revi sion # an d date m ay be different). If the PMU does not resp ond to this entry, the pas sword m ay h ave been re-conf igured f rom its factory default valu e. See the Erase All Program min g [...]

  • Page 17

    INSTALLATION LBI-39128 17 Time/Date/Password The following steps to set the time, date, and password are optional and ha ve no aff ect on the performan ce of the PMU: 11. With the Setup Selection Menu sho w n on the terminal, type 2 (f or item #2 - S ite Data #1) an d press the Enter key. The Site Data #1 screen should then appear on the terminal a[...]

  • Page 18

    LBI-39128 INSTALLATION 18 19. At the “Ent er New Data:” prom pt, type up to 4 characters for the passw ord and press the Enter key . Check t he passw ord show n on the Site Dat a #1 screen to be abso lutely sure it is what you expected and want. If not, ret urn to st ep #8 and redo the pas sw ord. If you try to enter m o re than 4 characters, o[...]

  • Page 19

    INSTALLATION LBI-39128 19 ANALOG INPUT CHANNEL 1 1. CHANNEL TYPE (0-13) = 3 2. DESCRIPTION = TX01 3. UNIT ID = AI01 4. MEASUREMENT UNITS = Watts 5. ALARM DELAY (1/4 sec) = 3 6. LOWER ALARM LIMIT = 0.0 7. UPPER ALARM LIMIT = 125.0 8. ALARM REPORT TYPES (1,2,3,4) = 9. ALARM RELAY NUMBER = 0 10. CHANNEL ENABLE METHOD (0-5) = 0 11. CHANNEL ENABLE THRES[...]

  • Page 20

    LBI-39128 INSTALLATION 20 power (P in watts), and com pare with the actual pow er measu rement on the power m eter. Because the table does not contain all v alues of V and P, y o u m ay need to interpolate to get the values you need. 7. Turn the calibration screw (clockwise if the m easured power is lower than th e power from the table) and repeat [...]

  • Page 21

    INSTALLATION LBI-39128 21 Table 6 - Power Sensor Voltage-to-Power Conversion Table VP VP VP VP VP VP VP VP 0.00 0.0 0.62 25.5 1.25 80.6 1.87 164.4 2.50 276.7 3.13 417.2 3.76 585.9 4.38 782.7 0.01 0.6 0.64 26.8 1.27 82.8 1.89 167.5 2.52 280.6 3.15 422.0 3.77 591.6 4.40 789.3 0.03 1.0 0.66 28.1 1.28 85.0 1.91 170.6 2.54 284.6 3.17 426.9 3.79 597.4 4.[...]

  • Page 22

    LBI-39128 OPERATION 22 OPERATION The PMU performs the following operations: • Monitors the detecto r output voltages from the transmitter and antenna power sensors under the direction of the Site Controller computer. • Converts the detector o u tput voltages to p ow er and SWR levels. • Compares the pow er and SWR levels to user- configurable[...]

  • Page 23

    OPERATION LBI-39128 23 transmitters, make all the required power and SWR calculations, and com pare all measurem ents and calculations to the applicable high and low alarm limits. Only alarm conditions that are m easured 750 milliseconds or m o re af ter the associated transmitter is keyed are used to send an alarm to the Site Controller computer. [...]

  • Page 24

    LBI-39128 OPERATION 24 Alarm Reporting The PMU reports alarms to the Site Controller computer in the status m e ssage replies to the on-channel messages. The stat us message may contain no alarms, or o ne or more alarms. Transmitter Alarms When the Site Controller com p u ter receives a transmitter alarm from the PMU, the Site Controller computer t[...]

  • Page 25

    OPERATION LBI-39128 25 When n o transm itter alarms are received in a status messag e from the PMU, the Site Controller computer takes the following action: • Resumes the practice of using transmitter alarm s from the PMU to take transmitter channels out of use for system calls. • Continues to assign all transmitters to test calls. • Sends th[...]

  • Page 26

    LBI-39128 OPERATION 26 Table 7 - PMU Option Parameters PARAMETER DESCRIPTION SITE CONTROLLER COMPUTER PERSONALITY PROMS SYSTEM MANAGER SITE DATABASE PMU ACTIVE CONFIGURATION Bit map parameter set that enables the PMU option on a per-channel basis (must also be enabled on a site-wide basis). PMU Enable (Channel Data screen) Must be enabled here (set[...]

  • Page 27

    OPERATION LBI-39128 27 Transmitter Lower Alarm Limit The value of this parameter is used by the PMU as the lower alarm limit for each tran smitter’ s output pow er. A single value for this parameter (the sam e limit for all transmitter channels) is programm ed into the Site Co ntroller computer’s Personality PROMs by the factory, and is used to[...]

  • Page 28

    LBI-39128 OPERATION 28 SWR Upper Limit This parameter is used by the PMU as the upper alarm limit f or each antenna’ s SWR. Its purpose is to detect w hen the antenna or coax to the antenna is damaged. T he recomm ended value for this limit is 2.0, which is equivalent to about 11% reflected power. This parameter is not p rogram med into the Site [...]

  • Page 29

    OPERATION LBI-39128 29 2. At the “Ent er Ch annel Nu mber” prompt, t ype 25 f o r antenn a #1 or 27 for A ntenn a #2 and press the Ent er key . The Analog Input Chan nel screen for th at antenna should then appear on the terminal. 3. T ype 6 (for i tem #6 - Low er Alarm Limit) an d press the Enter key. 4. At the “Ent er New Dat a” prompt, t[...]

  • Page 30

    LBI-39128 MAINTENANCE 30 Use the f ollowin g procedure to disconn ect the term inal when you are finished: 1. With the Setup Selection Menu sho w n on the terminal, Type 1 (for it em #1 - Return To Operation Select Menu) an d press the Enter key . T he Operation Select Menu should then be shown on the terminal. Table 8 - SWR Upper Limit REFLECTED P[...]

  • Page 31

    MAINTENANCE LBI-39128 31 REPORT SELECTION MENU 1. RETURN TO OPERATION SELECT MENU 2. ALARM REPORT 3. ALARM HISTORY 4. CURRENT STATUS 5. CHANNEL MONITOR 6. CHANNEL-ON TIMERS 7. CHANNEL DUMP ENTER SELECTION: Figure 23 - Report Selection Menu ALARM HISTORY REPORT SITE - NOT PROGRAMMED TIME 2:50pm DATE 1/18 UNIT CHANNEL DESCRIPTION VALUE TYPE(S) TIME D[...]

  • Page 32

    LBI-39128 MAINTENANCE 32 1. With the Ope ratio n Selec t Menu ( main menu) sho wn on the s creen, type 2 (for i tem #2 - Reports ) and press t he Enter key . The Report Selection Menu sho uld then appear on the terminal as shown in Figure 23. 2. T y pe 5 (for item #5 - Chan nel Moni tor) and press the Enter key. 3. At the “Monitor Unit ID (Y/N)??[...]

  • Page 33

    MAINTENANCE LBI-39128 33 want to return the PMU’s parameters to the factory default values, use the Software Initialization process describ ed in the Installation section (its much easier). Use the f ollowin g procedure to erase all program ming. Note that this will undo all programm ing by the user (including antenna mapping during installation)[...]

  • Page 34

    LBI-39128 MAINTENANCE 34 transmitter channels. Repeat steps 2 through 6 for each transmitter channel until all are re-configured. TROUBLESHOOTING After y o u think y ou have fixed a transmitter alarm problem, switch the transm itter o ff (12V p o w er supp ly ), then back on. This w ill cause the next test call to be placed to that transmitter and [...]

  • Page 35

    MAINTENANCE LBI-39128 35 Table 10 - Troubleshooting Symptoms (Continued) SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Constant transmitter alarm for one transmitter, but transm itter’s po w er is OK. Lower Alarm L imit is set too high or Upper Alarm Limit is set too low. Check and possibly re-configu re the alarm lim it(s) (see the Param eters hea[...]

  • Page 36

    LBI-39128 GLOSSARY Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg, Virginia 24502 1-800-528-7711 (Outside USA, 804-528-7711) Printed in U.S.A. GLOSSARY Anten na Mapping.........................................................Antenn a Mapping is the process of re- config uring th e P MU’ s Anten na Channel par am e ter through th[...]

  • Page 37

    INTERCONNECTION DIAGRAM LBI-39128 PMU Interconnection Diagram EDACS Repeater Cabinet 37 Interface Panel EDACS 19C852204G1 "POWER SENSOR" 1 26 Xmtr #1 Xmtr #3 3 28 J14 / J15 25 PR (F) Xmtr #2 Xmtr #4 5 30 7 32 9 34 Xmtr #5 Xmtr #7 11 36 Xmtr #6 Xmtr #8 13 38 15 40 17 42 Xmtr #9 Xmtr #11 19 44 Xmtr #10 Xmtr #12 21 46 23 48 25-Pair Cable to [...]

  • Page 38

    LBI-39128 INTERCONNECTION DIAGRAM PMU Interconnection Diagram EDACS Site Controller Cabinet 38 19D149302P9 Controller 350A1380P1 Power Monitor Unit EDACS Interface Panel 19C852632G1 "POWER SENSOR" 1 26 5 9 13 25 188D6466P2 Interconnect Xmtr #1 Xmtr #3 3 28 P3 P2 PORT #1 DB-25 (M) J1 J3 DB-9 (F) 25 PR (F) 1 2 3 7 S 1 3 2 7 19D903880P101 In[...]