Video, Audio and Data Transmissions

A smart card is a multi-purpose card with an integrated


SD: Let's talk about the LED displays, specifically.
JJ: LEDs may be one or two color, and two-color LEDs also attach a diagnosis to the blank or off state. Parameters covered by LEDs include optical signal strength (our patented LEVEL/LOSS display), laser condition, video in and out, audio in and out, data in and out, contact closure, relay operation, data enabled (on MPD units), audio level and optical level bar graphs and numerous others.

SD: What about the built-in signal generators?
JJ: The first of these were introduced with our new Multiprotocol Data (MPD) products. By simply selecting the test setting on a switch, a data generator in the transmitter would send a signal over fiber to the receiver, where the LEDs would indicate whether or not the link is working. No data equipment need be connected, and this speeds up the installation process. If the unit is designed for two-way transmission, then the test signal can be looped back to the transmitter for analysis, eliminating the need for separate communication between installers at each end of the link.

Very recently, Fiber Options has added built-in video and audio signal generators to its video and audio products that allow those functions to be tested without connection to external equipment also. The results of these internal system tests are displayed on the LED arrays.

SD: What is the latest addition to the SMARTS suite?
JJ: That would be the on-screen monitor displays for links that support video transmission. By displaying the information on the monitors that the security personnel are watching, it is possible to identify video signal problems without going to the Fiber Options link to check the LEDs. It works like this: a single white bar on a monitor indicates that there is no video input to that channel at the receiver; a double white bar indicates that there is no optical input at the receiver; and a video test pattern indicates that there is no video input at the transmitter on any channel.

SD: What developments can you point to as far as Ethernet, Self-Healing Ring and CWDM Technology?
JJ: In recognizing the shift to network solutions for many communications technologies, including security, Fiber Options has moved into that arena with the S713D and the S714D products. The S713D supports 10Base-T Ethernet protocol, while the S714D supports 10/100Base-T Fast Ethernet. The S714D is the first in the security market to support Fast Ethernet.

Fiber Options is also offering the most capable and sophisticated data ring topology. The S712D also supports a variety of advanced data topologies. Fiber Options has exclusive arrangement with the world's only manufacturer of multimode CWDM optics, which has allowed us to introduce products never before possible.

Basically, the CWDM technology enables Fiber Options to multiplex up to 16 high-quality videos, without compression, on a single multimode fiber. Considering that many fiber installations are straining at the limitations imposed by an inadequate number of fibers for current needs, the CWDM line promises to solve a lot of problems for a lot of people.