129
Appendix B: Engineering Specifications
D. Electr ical Protection
Power and telephone connection shall have inter nal spike and surge protection
using metal oxide varistors. All input channels shall have spike protection and noise
filter circuits.
E. Additional Electrical Surge Protection
Additional Power and Telephone line surge protection shall be available from the
manufacturer. When so installed, the system shall be fully warranted against any
damage caused by transient surges entering the system through Power or Telephone
lines.
F. Environmental
The system shall function over an operating range of 32° F - 120° F at up to 0 -
90% RH, non-condensing.
G. Maintenance
The system manufacturer shall have in-house service facilities and technical assis-
tance available during normal business hours (EST).
Specifications subject to change without notice.
Phonetics, Inc.
901 Tryens Road
Aston, PA 19014
Phone: (610)558-2700 FAX: (610)558-0222
http://www.sensaphone.com