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Information System Safety Instructions for Personnel and Products (EN60950/IEC60950) A50016-D1110-A400-1-7619

Safety Instructions for Personnel and Products (EN60950/IEC60950)

Information System

Trademarks: All designations used in this document can be trademarks, the use of which by third parties for their own purposes could violate the rights of their owners.

Copyright (C) Siemens AG 2005 Issued by the Communications Group Hofmannstraße 51 D-81359 München Technical modifications possible. Technical specifications and features are binding only insofar as they are specifically and expressly agreed upon in a written contract.

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This document consists of a total of 16 pages. All pages are issue 1.

Contents 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2

Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3

Access to electrical systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4

Transport and assembly of call handling facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5

Handling modules with electrostatic-sensitive components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6

Module replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7

Replacement of lithium batteries on modules . . . . . . . . . . . . . . . . . . . . . . . 13

8

Laser safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9

Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

10

Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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Waste of electrical and electronic equipment (WEEE) . . . . . . . . . . . . . . . . 16

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A50016-D1110-A400-1-7619

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1 Introduction This document, Safety Instructions for Personnel and Products (EN 60950/ IEC 60950), provides general information for working with telecommunication equipment from Siemens AG. The information is aimed at ensuring personnel safety and use of the correct procedures for handling technical equipment. Operating and maintenance personnel must be informed of the safety instructions. It is essential for the operation of the telecommunication equipment that the instructions be followed. The safety information is repeated at relevant points in the manuals, and complemented with handling instructions for dangerous operations.

2 Product safety Telecommunication equipment EN 60950/IEC 60950.

must

meet

the

safety

requirements

of

All connected devices must therefore also comply with the safety requirements for the telecommunication equipment. Environmental compatibility Telecommunication equipment must comply with the currently valid environmental compatibility regulations as defined in SN 36350. Proof of environmentally friendly product design in accordance with SN 36350 is provided by the checklist for environmental compatibility of products.

3 Access to electrical systems i

In electrical systems, certain parts of the devices are, by necessity, under voltage. Some parts may also have a high operating temperature.

!

If this situation and the warnings are ignored, this may result in injury and equipment damage. It is assumed that only trained and qualified personnel will install, activate and maintain the systems.

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4 Transport and assembly of call handling facilities Transport and Assembly of Racks For transport from the factory to the assembly location, the racks are supplied without a case, but with transport protection covering the module side, the wiring side, and both side surfaces. The packaging for transport protection forms a rigid unit around the rack, which is fully equipped with frames, modules and current converters.

!

The transport protection, including the front and rear panel, should not be removed until the rack is at its final assembly location in the network node. Once the rack has been assembled in the network node, the transport protection mounted by the manufacturer should be left on until the major installation work on the rack has been completed. This protects the module and wiring side.

!

The lead seals on the frames should not be removed until the racks are grounded by the Plus conductor. Protective caps for SLM modules The wire-wrap pins of the SLM modules in the DLU rack conduct the operating and ringing voltage. To prevent contact with these pins, they are provided with protective caps by the manufacturer.

!

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The protective caps on the wire-wrap pins of the SLM modules are not a transport protection, but a protection against electrical voltage, and must therefore be left on after the rack has been put into service!

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Protective cap

Fig. 4.1

Position of the protective caps

Dispatch of OEM devices The installation personnel must ensure that the original (special) packaging is retained after the assembling of OEM devices. This includes, for example, the packaging of: – Magnetic tape devices (transport frames for magnetic tape device STC 2922) – Magnetic tape disk recorders – PCs with monitor and keyboard – Printers – Announcement equipment

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5 Handling modules with electrostatic-sensitive components The modules must be handled with special care, as each of them contains a large number of electrostatic-sensitive components. Basic principles

i

All the integrated components used (including TTL) are electrostatic-sensitive components. All modules carry the electrostatic-sensitive component label (Fig. 5.1).

Fig. 5.1

Electrostatic-sensitive component label

The following precautions must be taken:

!

Operating personnel should avoid wearing clothes made of synthetic materials and shoes with synthetic soles, as these increase electrostatic charges.

!

Operating personnel must discharge themselves before handling modules. They must therefore always wear a grounded wristband when replacing modules. Operating personnel must connect their wristband to the ground potential of the rack via a flexible feed line with an integrated high-impedance leakage resistance, immediately after opening the rack doors and before touching modules, conductors or elements.

!

Only the discharge socket in the holder for the special tool for module replacement may be used for connecting the wristband to the ground potential (Fig. 5.2). The holder is on the module side of the rack on the right rack upright. It is important that the conductive parts of the banana plug are not touched when it is inserted (as this bridges the leakage resistance).

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Right rack upright Location for tool for pulling and inserting modules

Discharge socket for the wristband Fig. 5.2

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Holder with integrated discharge socket

Caution: Modules with an electrostatic-sensitive component label must be handled with great care. Static and external voltages can cause permanent damage to the components. Operating personnel should avoid touching the conductors and components of modules. Modules should only be picked up by their edges. Removed modules must be put into the special plastic bags provided for this purpose and then stored or dispatched in special transport boxes or transport cases with the electrostatic-sensitive component label.

!

Defective modules should be handled with as much care as new modules to prevent further damage to them. All tools, measuring devices and metallic objects which are to come into contact with removed modules must be discharged with ground potential before being used.

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Additional features of the CP113C/CR The CP113C/CR modules are protected in the frames with additional sheet-metal doors.

!

Before opening the doors to the frame of CP113C/CR and the maintenance panel, operating personnel must use the grounded wristband. Additional regulations for handling modules with electrostatic-sensitive components – Electrostatic-sensitive components must not be brought into contact with electrostatically charged or chargeable objects. – Electrostatic-sensitive components may only be brought into contact with high-impedance conductive materials (”gentle” discharge); no ”hard” discharges are to be carried out using metallic plates, etc. – Electrostatic-sensitive components must only be placed on grounded surfaces (flexible sheets with ground connection for service). – Electrostatic-sensitive components are only to be transported in approved packaging, and personnel must put on a grounded wristband before removing packaging. – Electrostatic-sensitive components should not be placed near to strong electrical d.c. fields, e.g. cathode ray tubes / monitors (safety distance at least 10 cm). – The leakage resistance of the wristbands must be checked regularly by operating personnel.

!

Discharges considerably below the minimum perceptible limit can cause preliminary or total damage to electrostatic-sensitive components!

6 Module replacement Basic principles When replacing a module assumed to be faulty, personnel must always follow the fault clearance procedures described in the relevant manual for the fault case in question. Personnel must check whether the modules contain switches or solder straps. Their settings must be checked against the manual specifications, and corrected if necessary. Carrying out module replacement Considerable care is required when replacing modules, as the large number of contacts in the plug-in connections means that a great deal of force is needed for inserting and pulling modules. The tool shown in Fig. 6.2 and Fig. 6.3 has been developed for inserting and pulling modules with high numbers of pins (e.g. 450 pins or more per module). The tool (Fig. 6.1) which has always previously been used for inserting and pulling modules is not suitable for these modules (modules in CP113C/CR, SNB and DLUB).

!

If the correct procedures for replacing modules are not followed, damage may be caused to contacts or conductors. Before replacing a module, the operator must put on the conductive wristband. The wristband must then be connected via the flexible feeder to the discharge socket in the tool holder.

!

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The special tool for module replacement is to be used in pulling and insertion procedures (Fig. 6.1, Fig. 6.2 and Fig. 6.3)

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One side of the tool (engraved ZIEHEN/PULL) is for pulling the modules. The other side of the tool (engraved STECKEN/PLUG IN) is for inserting the modules. • Pulling a module To pull a module, insert the tool with the ”pull side” into the pull hole on the upper edge of the faceplate; the tool is to the right of the module (Fig. 6.2). By carefully pushing the tool upwards, the module lock is opened, then the module connectors (spring-contact strips) are pulled off the blade-contact strips. The module can then be pulled out of the guide rails in the frame by hand. • Inserting a module Push the replacement module into the guide rails in the frame. Check that the module is inserted correctly in both the lower and the upper guide rails. Push the module back along the guide rails until there is a slight resistance, then press lightly with your hand against the resistance. The spring-contact strips of the module (module connector) are now centered on the blade-contact strips in the frame. To press the spring-contact strips onto the blade contact of the blade-contact strips, use the ”plug-in side” of the tool. To insert the module, position the tool at the lower edge of the faceplate (Fig. 6.3; the tool is to the right side of the module. Pull down the ”nose” of the plug-in side of the tool into the slot of the supporting rail of the frame and the guide rail - this is directly to the right of the part of the faceplate pointing forwards. When the tool is then pushed upwards, the spigot on the plug-in side of the tool presses against the faceplate and pushes the module onto the blade-contact strips. Push the tool upwards until the module can be heard to click into place. If the module is inserted correctly, its faceplate will be on a level with those of its neighboring modules.

Fig. 6.1

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Tool (C39300-A195-C70) (not suitable for pulling and inserting modules with high numbers of pins)

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Guide rail

Lock Unlock

Module

Faceplate

Pull Fig. 6.2

Tool

Pulling a module: The special tool for replacing modules must be used for both pulling and inserting modules (C39300-A195-B88)

Faceplate

Plug in

Module

Guide rail Tool Fig. 6.3

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Inserting a module: The special tool for replacing modules must be used for both pulling and inserting modules (C39300-A195-B88)

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7 Replacement of lithium batteries on modules Module IOP:AUC, input/output processor for authenticity center (D900), contains a lithium battery for preserving the memory contents in the event of a power outage. The battery must be replaced after an operating period of one year. The battery replacement must be recorded in a list. Battery replacement

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Batteries may only be replaced by operating personnel. When inserting new batteries, remember to check for correct polarity CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. Use only authorized batteries specified in the manual. The table shows the authorized lithium battery types of series CR... and the relevant technical data. Type

Manufacturer

Dimensions (mm) Diameter

Height

Rated voltage (V)

Typical capacity (mAh)

IEC

CR 2430

VARTA

24.5

3.0

3

260

CR 2430

DL 2430

DURACELL

24.5

3.0

3

260

CR 2430

Tab. 7.1

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Lithium batteries

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8 Laser safety information The network nodes contain laser equipment. When operated in a closed system, this equipment corresponds to the security level for class 1 laser equipment. Under normal operating conditions, the maximum send level lies within the limits defined in IEC 825, class 1. The optical interfaces have an automatic laser shutdown mechanism. Automatic laser shutdown The automatic laser shutdown mechanism protects against accidents in the event of a connection breakdown (lasers can damage the eyes). All optical interfaces on the transmit side have an automatic laser shutdown mechanism (ALS) which is activated in the following situations irrespective of the error or fault messages output: – transmit power too high – receive power too low (including loss of signal, LOS) – asymmetric data signal – in single fiber mode and in the event of direction mismatch (DM) If the receive signal is lost, the laser transmitter waits 60 s to 80 s (at most) and then makes periodic attempts to switch itself back on so that bidirectional data communication can be reestablished once the optical fiber link has been restored. If a signal is still not received from the distant end, the automatic laser shutdown mechanism is activated again. Safety information – Do not hold broken optical fibers up to your eye. Laser light can damage the eyes. – Broken optical fibers can be very sharp and may injure the eyes or the skin.

Devices and modules with this label contain laser equipment.

Fig. 8.1

LASER CLASS 1

Label for laser equipment

Mechanical damage to the face of optical connectors reduces the transmission quality (increased attenuation). Connectors should therefore be handled with care. Optical fibers should not fall short of the minimum bending radius of 30 mm. Caution! Lasers and optical fibers must not be subjected to mechanical stress.

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Refer also to the instructions on handling lasers and optical fibers on the optical modules.

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9 Fuses Fuse replacement

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Fuses should be replaced only by operating personnel. Only the fuses specified in the manual should be used. The following table lists the rated currents and the relevant Siemens item numbers of the fuses that can be used. Rated current (A)

Siemens item number

1

C30327-Z54-C30

4

C30327-Z54-C33

10

C30327-Z54-C35

63

D49522-D2-T63

Tab. 9.1

Fuses

10 Filter replacement The fixed climatic conditions must be ensured for the network nodes system. This requires regular preventative maintenance of the air-conditioning and the filter system, as well as keeping the area, in which the switching system is installed, clean. Replacing the filter elements in the FANBOX The filters are situated on the underside of the FANBOX. They must be replaced using the procedures described in the maintenance manual.

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Caution! The FANBOX must be switched off before the filter elements are replaced and switched on again after successful replacement. In normal dust collection conditions, the filter elements of the fanboxes must be replaced every three months. Replacing the filter mats in the racks Replacement of the filter mats in the rack doors and the rack base of the CP racks is carried out following the instructions in the maintenance manual. The filters must normally be replaced every 6 months. The filter replacement must be recorded in a list. Device

Siemens item no.

Number

Filter element for fanbox

C39127-Z3-C5

1 per fanbox

Filter mat for rack door

C39324-A96-B174

4 per CP rack

Filter mat for rack floor

C39324-A96-C347

1 per CP rack

Tab. 10.1

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Filters

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11 Waste of electrical and electronic equipment (WEEE)

All electrical and electronic products should be disposed of separately from the municipal waste stream via designated collection facilities appointed by the government or the local authorities. The correct disposal and separate collection of your old appliance will help prevent potential negative consequences for the environment and human health. It is a precondition for reuse and recycling of used electrical and electronic equipment. For more detailed information about disposal of your old appliance, please contact your SIEMENS partner. The statements quoted above are only fully valid for equipment which is installed in the countries of the European Union and is covered by the directive 2002/96/EC. Countries outside the European Union may have other regulations regarding the disposal of electrical and electronic equipment.

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