User manual

Wide Bank 28 DS3 - Release 2.4 July 2004 v
If the trouble is causing harm to the telephone network, the telephone company may request that
you remove the Wide Bank 28 DS3 from the network until the problem is resolved. User repairs
must not be made. Doing so will void your warranty.
To minimize damage caused by local lightning strikes and other electrical surges, it is
recommended that the customer install an AC surge arrestor in the AC outlet to which the optional
AC to -48VDC Power Converter/Battery Charger is connected.
Safety Requirements for Telecommunications Equipment
The Wide Bank 28 DS3 complies with the following product safety requirements for telecommuni-
cations equipment installed in customer premises.
 National Electrical Code – overvoltage and power-cross protection on DS1 and E1 lines
For unit cover with CSA logo
 Canadian Standards Association – CSA-C22.2 No. 950-95, Standard
for Safety for Information Technology Equipment.
 Underwriters Laboratories – UL 1950 third edition, Information
Technology Equipment
For unit cover with UL logo
 Underwriters Laboratories – (Bi-National) Standard for Information
Technology Equipment, Including Business Equipment, CAN/CSA
22.2, No. 60950-00 / UL 60950, third edition, dated December 1, 2000.
Industry Canada Requirements
Certification Procedure 01 (CP-01), Issue 8
“Notice: This equipment meets telecommunications network protective, operational and safety
requirements as prescribed in the appropriate Terminal Equipment Technical Requirements
document(s). This is confirmed by marking the equipment with the Industry Canada certification
number. The Department does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be coordinated by a representative 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 such connections themselves but should contact the
appropriate electric inspection authority, or electrician, as appropriate.”
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