Your IBM-412 telephone has been designed to give years of trouble free service. It is a sensitive elec- tromechanical instrument. To assure its longevity, please read the following maintenance instructions.
1.Keep the IBM-412 away from heat as high temperatures can shorten the life of the electrical compo- nents and distort or melt its plastic parts.
2.The IBM-412 should be kept free of dust and moisture. If it gets wet, wipe it dry immediately. Liq- uids can contain minerals that can corrode electronic circuits.
3.Handle your IBM-412 gently and carefully. Dropping it can cause serious damage to circuitry, or the plastic case, which may result in causing it to malfunction.
4.Do not use any type of chemical or any abrasive powder to clean the cabinet. Use only mild deter- gents on a soft, damp cloth to clean the IBM-412 telephone.
5.The IBM-412 has built-in surge protection circuits that meet or exceed FCC requirements. How- ever, an incident such as a lightning strike at or near the telephone lines, could cause serious dam- age.
6.If the IBM-412 is installed in an area with frequent or severe electrical storms, it is suggested that the telephone be disconnected during these storms or that additional surge suppression equipment be added to the installation.
7.In the case of trouble with the telephone, do not attempt to repair the telephone yourself. It is the responsibility of users requiring service to report the need for service to our Service Department. They will make the necessary arrangements for repair or replacement.
8.If you should have any questions about the operation of your IBM-412 telephone, please call our Ser- vice Department at 1-800-955-1009, between the hours of 9:00 A.M. and 5:00 P.M. Pacific time. Or you may contact TT Systems Corporation for technical assistance via our Internet Website: http:// www.tech@ttsystems.com.
