NCJ Number
96331
Date Published
1984
Length
18 pages
Annotation
This standard establishes performance requirements and test methods for digital dialers that dial one or more preprogrammed telephone numbers and transmit digitally coded messages in response to an actuation.
Abstract
These alarm messages are transmitted to special digital signal receivers via the ordinary switched telephone network. The standard emphasizes characteristics affecting the devices' reliability and susceptibility to false alarms. It does not classify dialers by type, but covers those operating on 115-V ac power and transmitting digitally coded messages. The standard describes control options for the dialers and then details specific requirements, covering user information, transmission signal, telephone interface, functional performance, stability, and electromagnetic susceptibility. The section on test methods addresses sampling, test conditions, equipment, and tests for specific requirements. A glossary, diagrams, and six references are supplied.