3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual page 4

Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by
the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may
give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility,
telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution
may be particularly important in rural areas.
CAUTION: Users should not attempt to make electrical ground connections by themselves, but should contact
the appropriate inspection authority or an electrician, as appropriate.
Japanese Notice
CE Notice
Marking by the symbol
Directive 89/336/EEC, the Low Voltage Directive 73/23/EEC amended by 93/68/EEC and the Telecom Terminal
Equipment and Satellite Earth Stations Directive 98/13/EEC. Such marking is indicative that this equipment
meets or exceeds the following technical standards:
EN 55022 - "Limits and Methods of Measurement of Radio Interference Characteristics of Information
Technology Equipment."
EN 50082-1 - "Electromagnetic compatibility - Generic immunity standard Part 1: Residential,
commercial, and light industrial."
EN60950 (1992) - Safety of information technology equipment, including electrical business equipment.
CTR 1 - "Attachment requirements for terminal equipment to be connected to circuit switched data
networks and leased circuits using a CCITT Recommendation X.21 interface, or at an interface
physically, functionally and electrically compatible with CCITT Recommendation X.21 but operating at
any data signalling rate up to, and including, 1 984 kbit/s"
CTR 2 - "Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched
Public Data Networks (PSPDNs) for CCITT Recommendation X.25 interfaces at data signalling rates up
to 1 920 kbit/s utilizing interfaces derived from CCITT Recommendations X.21 and X.21 bis"
CTR 4 - "Integrated Services Digital Network (ISDN); Attachment requirements for terminal equipment
to connect to an ISDN using ISDN primary rate access"
CTR 12 - "Open Network Provision (ONP) technical requirements; 2 048 kbit/s digital unstructured
leased line (D2048U) Attchment requirements for terminal equipment"
CTR 13 - "2048 kbit/s digital structured leased lines (D2048S); Attachment requirements for terminal
equipment interface"
CTR 24 - "34 Mbit/s digital unstructured and structured leased lines (D34U and D34S); Attachment
requirements for terminal equipment interface"
A "Declaration of Conformity" in accordance with the above standards has been made and is on file at
3Com Corporation.
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indicates compliance of this equipment to the EMC