Which of the following types of alarm transmission systems is designed to reduce leased telephone line charges while providing a higher degree of security?
Multiplex systems allow multiple alarm signals to be transmitted over a single communication line. This significantly reduces the cost of leasing multiple phone lines while enhancing efficiency and providing a high level of security by encoding and validating data streams.
A (Circuit loop) is an older method using dedicated circuits.
C (Cellular) is wireless but may not always offer secure or low-cost options.
D (Dial-up) is cost-effective but offers limited security and speed.
[References:, PSP Study Guide – Alarm System Technologies, POA Manual – Alarm Communication Systems, ]
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit