22 Glossary of Terms

Auxiliary

An auxiliary is an additional function of the remote receiver/driver which permits on/off control of outputs available to the user. In the Allegiant system, there are four relay outputs available which can be configured for contact closures, 24 VAC out- put, or LINE voltage output. They can also be set to activate either momentarily or in a latching mode.

Command Script

A unique feature of the Allegiant system wherein a section of nonvolatile memory can be used to store specialized user-defined programming. A program of this type could then provide custom features which ordinarily would not be obtainable.

Dither

A receiver/driver feature which provides added protection to very low light level cameras by periodically panning a few degrees left and right automatically.

Lockouts

The ability of a switcher/controller system to restrict access of operations to certain system functions or features. The Allegiant system has two modes of lockouts. The first mode is based on operator priority level. This allows a higher priority level operator to lockout lower level operators from either viewing or controlling specific cameras. The second mode involves LTC 8059 MCS setups which can:

Restrict operators/keyboards from viewing/accessing any camera.

Restrict operators/keyboards from controlling/accessing any pan/tilt.

Restrict operators from using certain keyboards.

Restrict operators/keyboards from accessing certain monitors.

Log-on, Log-off

A selectable feature of the Allegiant system which requires operators to enter a user number and an optional password into the keyboard prior to having access to sys- tem operations.

Matrix Switching

The ability of a switching system to display any camera on any monitor or the same camera on all monitors.

Phased Cameras

Properly integrated cameras which give a roll-free video display when switching from one camera to the next in a sequential switcher system. Phased cameras are the result of line-locked cameras being powered from the same AC power, externally synchronized, or vertically phased adjusted on cameras equipped with this option.

Pre-position

The ability to store the position of a pan/tilt and zoom lens so that the same desired scene can be later recalled automatically. With the Allegiant system, there can be multiple preset scenes stored for each pan/tilt camera. For each scene, the pan, tilt, zoom, and focus settings are stored.

EN 76

Bosch Security Systems December 13, 2005

Page 86
Image 86
Bosch Appliances LTC, 8500 instruction manual Glossary of Terms