rnc mgw unit pd30 descr

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WCDMA RAN, Rel. RU30,Operating Documentation,Issue 12

PD30

DN7080339

Issue 02AApproval Date 2011-10-21

Confidential



2 DN7080339Issue 02A

PD30

Id:0900d805808cca46Confidential

The information in this document i s subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for the

use of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmittedin any form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.

The information or statements given in this documentation concerning the suitability, capacity,or performance of the mentioned hardware or software products are given "as is" and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However ,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which

may not be covered by the document.Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL Nokia Siemens Networks BE LIABLE FOR ERRORS IN THIS DOCUMENTA-TION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDI-RECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITEDTO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITYOR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATIONIN IT.

This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.

The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademarkof Nokia Corporation. Siemens is a registered trademark of Siemens AG.

Other product names mentioned in this document may be trademarks of their respectiveowners, and they are mentioned for identification purposes only.

Copyright © Nokia Siemens Networks 2011. All rights reserved

f Important Notice on Product SafetyThis product may present safety risks due to laser, electricity, heat, and other sourcesof danger.

Only trained and qualified personnel may install, operate, maintain or otherwise handlethis product and only after having carefully read the safety information applicable to thisproduct.

The safety information is provided in the Safety Information section in the “Legal, Safety

and Environmental Information” part of this document or documentation set.

The same text in German:

f Wichtiger Hinweis zur ProduktsicherheitVon diesem Produkt können Gefahren durch Laser, Elektrizität, Hitzeentwicklung oderandere Gefahrenquellen ausgehen.

Installation, Betrieb, Wartung und sonstige Handhabung des Produktes darf nur durchgeschultes und qualifiziertes Personal unter Beachtung der anwendbaren Sicherheits-anforderungen erfolgen.

Die Sicherheitsanforderungen finden Sie unter „Sicherheitshinweise“ im Teil „Legal,Safety and Environmental Information“ dieses Dokuments oder dieses Dokumentations-satzes.



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PD30


Table of contentsThis document has 17 pages.

Summary of changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1 PD30 overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 PD30 capacity and performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 PD30 structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 PD30 operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.1 Front panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.2 Filtering and power distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.3 HMSS-B node and alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.4 Fan control and fan power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5 PD30 power output capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6 PD30 connector maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.1 Backplane connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16



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PD30


List of figuresFigure 1 Block diagram of the PD30 unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 2 Front panel of the PD30 unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 3 Principle of power distribution in the PD30 unit . . . . . . . . . . . . . . . . . . . 12



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PD30


List of tablesTable 1 PD30 fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 2 Fan rotation speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 3 Power output capacity of PD30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 4 Power consumption of PD30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 5 Pin map of backplane connector J1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 6 Pin map of backplane connector J3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 7 Pin map of backplane connector J5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 17



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PD30

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Summary of changes

Summary of changes Changes between document issues are cumulative. Therefore, the latest documentissue contains all changes made to previous issues.

Note that the issue numbering system and safety information are changing. For moreinformation, see Guide to WCDMA RAN and I-HSPA Operating Documentation .

Changes between Issues 02 (2011-03-10, WCDMA RAN RU30) and 02A (2011-10-21, WCDMA RAN RU30)

PD30 structure (3) • Figure 1 is updated.

PD30 operation (4) • Figure 2, Figure 3 and Table 1 are updated. • The three colors of the LED is added.

PD30 power output capacity (5) • Table 3 is updated.

Changes between Issues 1-0 (2010-09-01, WCDMA RAN RU30) and 02 (2011-03-10,WCDMA RAN RU30)

PD30 overview (1) • The severity of the safety information about the use of the older fan tray is changed

from CAUTION to NOTICE .

PD30 operation (4) • The severity of the safety information about fuse holders is changed from CAUTION

to NOTICE . • The severity of the safety information about the use of the older fan tray is changed

from CAUTION to NOTICE .

Issue 1-0

This is the first issue.

http://guide_to_wcdma_ran_op_doc.pdf/

http://guide_to_wcdma_ran_op_doc.pdf/



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PD30 PD30 overview

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1 PD30 overviewMain functions of PD30

PD30 is a subrack level power distribution plug-in unit which provides a maximum of 30Acurrent to each subrack in IPA2800 power feed system. The PD30 unit provides powerdistribution, filtering, fan control functions. In addition, the PD30 unit provides over-current and over-voltage protection, power dropout stretching, and reverse batteryvoltage protection functions. The reverse battery voltage protection is for accidentalinstallation errors.

The PD30 unit can operate only when correct battery voltage polarity and voltage levelare applied.

w NOTICE: Only use the fan trays FTRA-A and FTRA-B with the PD30 unit. The use ofthe older fan tray models FTR1 and FTRA damages the equipment.



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PD30


PD30 capacity and performance

2 PD30 capacity and performanceThe PD30 unit supplies 30 A current at the maximum. There are two power supplybranches in the PD30 unit. When the two branches are in use, he total current of the twobranches is a maximum of 30A. If the PD30 unit supplies all the current to one branch,the other branch is not in use.

When the voltage is at the lowest level (40 V), the maximum power the PD30 unitsupplies is about 1200 W.



DN7080339 9

PD30 PD30 structure

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3 PD30 structureMechanical structure of PD30

The PD30 plug-in unit is implemented with a single standard IPA2800 full size printedwiring board (PWB). The size of the PWB is 265 mm by 285 mm (height x length). Thenominal thickness of the board is 2.0 mm.

Logical structure of PD30

Figure 1 Block diagram of the PD30 unit shows the logical structure of the PD30 unit.

Figure 1 Block diagram of the PD30 unit

The PD30 unit is the first unit on the electromagnetic compatibility ( EMC ) boundary ofthe system. The PD30 unit has two power supply branches. Branched outputs areequipped with fuses to protect the parts of the unit behind the fuses and the back plane.To ensure the fuses are functioning, the unit is equipped with the energy storage capac-itors.

The PD30 unit also has a feature that recover the system from short power faults bylengthening the power drop-outs longer than 1 ms on the -48 V power down to 600…900ms.Dual Controller Area Network (CAN) buses are the interface towards the subrack OMUunit.

Interfaces of PD30

The PD30 unit has the following external interfaces: • incoming power via 40 A power connectors • power distribution into the back plane via 5-column Z-pack connectors • interface of Hardware Management System ( HMS ) node signals via certain pins in

5-column Z-pack connectors •

interface to the fan tray

http://general_glossary.pdf/






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PD30


PD30 operation

4 PD30 operation

4.1 Front panelThe size of the front panel is 285 mm by 24.2 mm (height x width). The PD30 unit has13 LED indicators and 10 fuses. Figure 2 Front panel of the PD30 unit shows the frontpanel of the PD30 unit.

Figure 2 Front panel of the PD30 unit

LED indicator

The PD30 unit has a total of 13 LED indicators on the front panel. Twelve of them arefor indicating alarms: • Ten LEDs indicate which fuse is faulty. • Two LEDs indicate the lack of supply voltage in either of the supply branches.

In addition to the 12 LEDs of fuse indicator, one unit indicator of three colors (green,orange, red) is controlled by the HMSS-B block.

= Unit indicator

Fuses

= Fuse indicator

FA5

FA4

FA3

FA2

FA1

UB2

FB1

FB2

FB3

FB4

FB5

UB1



DN7080339 11

PD30 PD30 operation


Front panel fuses

On the front panel, the PD30 unit has 10 fuses for distributing power the PD30 unit fil-tered.

The order of the fuses is marked on the front panel from top to bottom: the first five fusesform one group which uses the first power supply branch; the next five fuses formanother group which uses the second power supply branch. Within the groups, the fuseshave two tasks: the first fuse (FA5) of the first group and the bottom fuse (FB5) of thesecond group supply the fan tray whereas the other fuses in both groups supply otherplug-in units in the subrack.

w NOTICE: To avoid network element malfunction, do not use the fuse holders as circuitbreakers.

Table 1 PD30 fuses lists all the fuses, the fuse types, and the plug-in unit slots theycontrol:

4.2 Filtering and power distributionThe principle of power distribution functions in the PD30 unit is shown in Figure3 Principle of power distribution in the PD30 unit . For more information, see Figure1 Block diagram of the PD30 unit .

Fuse PIU slot Fuse type

FA 5 Fan tray FTRA-A or FTRA-B 6.3 A/250 V Slow 1)

1) Examples of 6.3 A type variants: Littelfuse 021506.3MXP;Schurter 0001.2512.BF

FA 4 Slot 15-19 10 A/250 V Fast 2)

2) Examples of 10 A type variants: Littelfuse 0216010.MXP;Schurter 0001.1014.BF

FA 3 Slot 11-14 and 38 10 A/250 V Fast 2)

FA 2 Slot 5-9 10 A/250 V Fast 2)

FA 1 Slot 1-4 10 A/250 V Fast 2)

FB 1 Slot 1-4 10 A/250 V Fast 2)

FB 2 Slot 5-9 10 A/250 V Fast 2)

FB 3 Slot 11-14 and 38 10 A/250 V Fast 2)

FB 4 Slot 15-19 10 A/250 V Fast 2)

FB 5 Fan tray FTRA-A or FTRA-B 6.3 A/250 V Slow 1)

Table 1 PD30 fuses



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PD30 operation

Figure 3 Principle of power distribution in the PD30 unit

The filter is closed in an EMC tight enclosure which prevents EMC disturbances radiat-ing to outside environment. Both supply lines go through the filter. The supply linesshare a common choke but have X- and Y-capacitors of their own.

In both supply branches, large electrolytic capacitors are located on two dedicatedcapacitor boards. After the electrolytic capacitors, supply branches are branched furtherto five subbranches which are protected by fast glass tube fuses and then supplied tothe backplane. One of the subbranches in the supply branches is for the fan tray.

The capacitors are used to hold the voltage at an accepted level when a fuse is blown.They also act as energy storages near the fuses so that parallel branches do not sufferfrom voltage dip in case of a short circuit.

In addition, the capacitors can absorb a large amount of energy of an approaching surgepulse. The rapid rising edge of the surge pulse is managed by the capacitors in the filter.The energy storage capacitors also filter low frequency noise. Overvoltage protectorsprevent system from high voltage spikes.

4.3 HMSS-B node and alarmsFuse alarm, alarms from the fan tray, alarms from the fan tray power supply, and alarmsindicating lack of supply voltage and faulty supply voltage are forwarded to the HMSS-B node. Electrical isolation to the HMSS-B block is maintained by the use of optocou-plers.

The following alarms exist: • under-voltage alarm of UB1 battery input • over-voltage alarm of UB1 battery input • under-voltage alarm of UB2 battery input • over-voltage alarm of UB2 battery input • alarm for fan tray power supply

SMDfuse

Filter

DC

DC

Power supply

Cabinet

CPD120 (-A)

Fuses or circuitbreakers

on site

PD30unit

Filter

Glass tubefuses

Subrack of a simplified PD30 unit

Cabinet Power Distribution (CPD) unit: 4 outputs at –48 V

-UB1

-UB2



DN7080339 13

PD30 PD30 operation


• alarms from fan tray speed supervision • fuse alarm (common to all)

Alarm interface

Alarm interface is implemented with Programmable Logic Device (PLD) in the HMSS-Bblock. The speed of individual fans within a fan tray (FTRA-A or FTRA-B) is monitoredby the HMSS-B block. The software generates fan alarms if any of the fans in a fan traymalfunction.

Control interface

The speed of the fans is controlled by pulse width modulation (PWM) signal that thecontrol interface sends to the PD30 main board. The control interface also uses tachosignals to enable the HMSS-B block to monitor the speed of individual fans in a fan tray.The inter-integrated circuit (I2C) bus connection to the fan tray allows the HMSS-B blockto access the EEPROM memory on the fan tray as well as the temperature sensor in the

fan tray.The HMSS-B block examines each tacho signal to find out if each fan is rotating at thecorrect speed on the fan tray. Based on the result, the HMSS-B block creates an alarm,and sets the fans to rotate at full speed to compensate for the malfunction of one fan, aswell as lights up the red LED on the fan tray (see Table 2 Fan rotation speeds ).

Note that the fan must not be stopped for more than one minute.

4.4 Fan control and fan power supply

Cabinets have one fan tray per subrack, which results in a maximum of four fan traysper cabinet. The fan tray is located underneath the subrack.

The fan tray control functions are performed by varying the pulse width of the PWMsignal to the fan tray by the controller of the HMSS-B block. The pulse width of the PWMsignal directly affects the speed of the fans in the fan tray.

w NOTICE: Only use the fan trays FTRA-A and FTRA-B with the PD30 unit. The use ofthe older fan tray models FTR1 and FTRA damages the equipment.

Standby power subblocks

The two standby power subblocks distribute power to the fans and feed power to thecomponents used in all subblocks.

Rotation speed 1)

1) The speed depends on the programmed PWM controlsignal.

Output voltage PWM

Stopped 0 V N/A

Minimum 48 V approximately 30-50%

Normal 2)

2) Nominal speed of the fan model

48 V approximately 51-80%

Maximum 48 V 100%

Table 2 Fan rotation speeds



14 DN7080339

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PD30 operation

Power feed is doubled which means that two lines come to the subblock. If one line fails,the other line can provide power for the whole block.



DN7080339 15

PD30 PD30 power output capacity

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5 PD30 power output capacityThe nominal operating voltage of the PD30 unit is -48 V from the backplane. Table3 Power output capacity of PD30 shows the power output capacity of the PD30 unit.Table 4 Power consumption of PD30 shows the power consumption of the PD30 unit.

Load Current Voltage

To each subrack Redundant 4 X 7.5 A Nominal -48 V

To each fan tray 3.0 A 48 V

Auxiliary to each fan tray 0.3 A 5 V

Power consumption of the PD30 unit is approximately 50 W at full load.

Table 3 Power output capacity of PD30

Status Power consumption

Maximum load approximately 50 W

Table 4 Power consumption of PD30



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PD30 connector maps

6 PD30 connector maps

6.1 Backplane connectorsThere are three backplane connectors in the rear of the PD30 unit. The pin map of thethree backplane connectors are shown below:

E D C B A

1 GND N/C GND N/C GND

2 SLOT(3) SLOT(2) GND SLOT(1) SLOT(0)

3 GND HMS_+5V GND SLOT(5) SLOT(4)

4 HMS_CAN1L HMS_CAN1H GND HMS_CAN0L HMS_CAN0H

5 GND HMS1_+5 V GND GND HMS0_+5 V

6 - - GND - -

7 GND GND GND GND GND

8 N/C N/C N/C N/C N/C

9 UB1_4 UB1_4 UB1_4 UB1_4 UB1_4


11 B0V1_4 B0V1_4 B0V1_4 B0V1_4 B0V1_4

12

Coding area13

1415 UB1_3 UB1_3 UB1_3 UB1_3 UB1_3


17 B0V1_3 B0V1_3 B0V1_3 B0V1_3 B0V1_3


19 UB1_2 UB1_2 UB1_2 UB1_2 UB1_2


21 B0V1_2 B0V1_2 B0V1_2 B0V1_2 B0V1_2


23 UB1_1 UB1_1 UB1_1 UB1_1 UB1_1


25 B0V1_1 B0V1_1 B0V1_1 B0V1_1 B0V1_1

Table 5 Pin map of backplane connector J1.

52 -B0

56 +B0

60 GND

Table 6 Pin map of backplane connector J3



DN7080339 17

PD30 PD30 connector maps

Id:0900d805808b6c0d

62-64 Coding

66 GND

70 +B1

74 -B1

E D C B A

101 B0V2_1 B0V2_1 B0V2_1 B0V2_1 B0V2_1


103 UB2_1 UB2_1 UB2_1 UB2_1 UB2_1


105 B0V2_2 B0V2_2 B0V2_2 B0V2_2 B0V2_2


107 UB2_2 UB2_2 UB2_2 UB2_2 UB2_2


109 B0V2_3 B0V2_3 B0V2_3 B0V2_3 B0V2_3


111 UB2_3 UB2_3 UB2_3 UB2_3 UB2_3

112

Coding area113114

115 B0V2_4 B0V2_4 B0V2_4 B0V2_4 B0V2_4


117 UB2_4 UB2_4 UB2_4 UB2_4 UB2_4


119 Tacho_0 Tacho_1 Tacho_2 Tacho_3 Tacho_4

120 N/C N/C Tacho_5 Tacho_6 Tacho_7

121 VF- N/C N/C N/C N/C

122 VF- N/C LED PWM l2C_CLK123 N/C N/C l2C_DATA 5V GND

124 VF+ N/C VF+ VF- N/C

125 VF+ N/C N/C N/C N/C

Table 7 Pin map of backplane connector J5

Table 6 Pin map of backplane connector J3 (Cont.)

rnc mgw unit pd30 descr

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