Contributing Technology Writer. Ron Nelson has more than 36 years' experience in the security industry, and is employed with Mutual Central Alarm Services Inc., New York. He can be reached at sdmtechtips@bnpmedia.com.
What is the compression ratio for a 1-MB image that is compressed to 128KB?a. 1:1b. 2:1c. 4:1d. 8:1e. 16:1 A technique that uses a mathematical calculation to create missing
Plenum-rated wire must always be used for all access control devices.a. Trueb. False Which type of wire should be used for a request-to-exit (REX) motion detector?a. 16/2b. 22/4c. 22/6
Ron Nelson is the director of technical services for Mutual Central Alarm Services Inc., New York. He has more than 36 years’ experience in the security industry and can be
A digital alarm communicator transmitter (DACT) shall seize the telephone line when it is required to transmit a signal.a. Trueb. False A fire alarm system utilizing a DACT shall
All wireless network devices are interchangeable.a. Trueb. False What type of cable should be used for a 100 Mbps Ethernet data network?a. 18/2b. Cat 3c. Cat 5ed. Any of
Video verification images can be sent via:a. POTS lines.b. broadband connection.c. GSM cell phones.d. Any of the abovee. None of the above Verified alarms can result in:a. lower false
Ron Nelson1. All commercial fire alarm initiating devices must be listed by the National Fire Protection Association (NFPA). a. True b. False2. What frequency do in-house fire alarm
Any dual detector can be used for outdoor protection.a. Trueb. False Outdoor photoelectric detectors use dual beams to:a. increase range.b. overcome the effect of bright sunlight.c. reduce false alarms.d.
All remote controls for a home theater/automation system use infrared to transmit commands to the receiver.a. Trueb. False What type of transmission media can be used for home control
