3Com AccessBuilder 980/000048/001 User Manual
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Contents
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Approvals Information A-5n All the other apparatus shall comprise only:n Apparatus approved (see note) for the purpose of connectionbetween the apparatus and the digital circuit; andn Cable or wiring complying with a code of practice for theinstallation of apparatus covered by this standard or such otherrequirements as may be applicable.Such apparatus may have been approved subject to limitations on itsuse.This modem is suitable for use on telephone lines provided withloop-disconnect or multi-frequency (MF) dialling facilities.This modem is suitable for household, office and similar indoor use, but isnot suitable for use on an extension to a payphone, or a 1+1 carrier system.This unit may be used on circuits with CEPT L1 signalling at a nominalfrequency of 2280 Hz. It does not require signalling or otherwiseemploy the frequency range 0 Hz to 200 Hz and there is norequirement for DC from the telephone line for correct operation.This unit causes a line voltage drop of 0.2 V at a line current of 40 mAInterference and Safety RequirementsRadio frequency interference may be caused by incorrect operation orinadequate maintenance of this equipment. This unit is intended foruse with screened digital cables.If any of your apparatus is not operating correctly, you shouldimmediately remove it from the telephone line as this may harm thetelephone network (GSTN).The approval of this unit for connection to GSTN or private speechband circuits is invalid if the apparatus is subject to modification in anymaterial way not authorized or if it is used with or connected tointernal software which has not been formally accepted. |
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