Fujitsu S6520 S6520 User's Guide - Page 23

Modem (RJ-11) Telephone Jack The Modem (RJ-11) telephone jack is for attaching a telephone line to the internal multinational 56K modem. See "Modem (RJ-11) Telephone Jack" on page 88. THE INTERNAL MODEM IS NOT INTENDED FOR USE WITH DIGITAL PBX SYSTEMS. DO NOT CONNECT THE INTERNAL MODEM TO A DIGITAL PBX AS IT MAY CAUSE SERIOUS DAMAGE TO THE INTERNAL MODEM OR YOUR ENTIRE NOTEBOOK. CONSULT YOUR PBX MANUFACTURER'S DOCUMENTATION FOR DETAILS. SOME HOTELS HAVE DIGITAL PBX SYSTEMS. BE SURE TO FIND OUT BEFORE YOU CONNECT YOUR MODEM. THE INTERNAL MULTINATIONAL MODEM IS DESIGNED TO THE ITU-T V.90/V.92 STANDARD. ITS MAXIMUM SPEED OF 53000 BPS IS THE HIGHEST ALLOWED BY FCC, AND ITS ACTUAL CONNECTION RATE DEPENDS ON THE LINE CONDITIONS. THE MAXIMUM SPEED IS 33600 BPS AT UPLOAD, IN ACCORDANCE WITH FCC REGULATIONS. FOR ADDITIONAL INFORMATION ABOUT THE MODEM, REFER TO THE FUJITSU WEBSITE AT: US.FUJITSU.COM/COMPUTERS. Air Vents The air vents allow air to circulate through the system to cool down the components. TO PROTECT YOUR NOTEBOOK FROM DAMAGE AND TO OPTIMIZE PERFORMANCE, BE SURE TO KEEP ALL AIR ALL VENTS UNOBSTRUCTED, CLEAN, AND CLEAR OF DEBRIS. THIS MAY REQUIRE PERIODIC CLEANING, DEPENDING UPON THE ENVIRONMENT IN WHICH THE SYSTEM IS USED. DO NOT OPERATE THE NOTEBOOK IN AREAS WHERE THE AIR VENTS CAN BE OBSTRUCTED, SUCH AS IN TIGHT ENCLOSURES OR ON SOFT SURFACES LIKE A BED OR CUSHION. Optical Drive Release Button The optical drive release button opens the optical drive. 18 - Locating the Controls and Connectors