Alcatel Speed Touch 591s, Техническое руководство пользователя, Страница: 13 / 184

Mandatory regulations
Speed Touch 591s Technical Practices xiii
February 2001 90-8785-01
Equipment interconnection points
Interconnection points of the system are defined as follows:
•
SELV for the user, T1, E1, and serial ports on the Speed Touch 591s
•
TNV for the SHDSL network port on the Speed Touch 591s
TNV can be classified as TNV1, TNV2, or TNV3.
TNV1 circuits are telecommunications circuits that have voltages below SELV
limits, may be subject to overvoltages, and can be connected off premises (to an
outside plant).
TNV2 circuits are telecommunications circuits that have voltages exceeding SELV
limits, are not subject to overvoltages, and do not connect off premises (to an outside
plant).
TNV3 circuits are telecommunications circuits that have voltages above SELV
limits, may be subject to overvoltages, and can be connected off premises (to an
outside plant). The SHDSL network port on the Speed Touch 591s is TNV3.
Connect SELV circuits on this equipment only to other circuits that comply with the
requirements of SELV circuits as defined in CSA C22.2 No. 950, UL1950,
EN60950, AS/NZS 3260, and IEC950.
Connect TNV circuits on this equipment only to other circuits that comply with the
requirements of TNV circuits as defined in CSA C22.2 No. 950, UL1950, EN60950,
AS/NZS 3260, and IEC950.
External power supply
EMC compliance
EMC compliance may require the use of ferrites, shielded cables, or other special
accessories. Where required, these special accessories must be installed per the
instructions.
Regulatory symbols
The following sections show examples of generally used regulatory approvals
symbols. These symbols may be used on product markings such as approvals labels
and are described in IEC417.
Warning —
The Speed Touch 591s is intended for use when
powered by an appropriate external power supply available only from
Alcatel. The use of any other power supply may invalidate regulatory
approvals of this equipment.