Specifications

the amount of compression that is applied to the live video image before it is transmitted to the RAS PC. At the

highest quality setting, the images will be less compressed, making bigger files that take longer to transmit. At

the highest speed settings the images will be more compressed, with a faster refresh rate. Note that the slider

bar is only active when the recorder is not recording. During recording, the image quality and update rate is fixed

to whatever the user selected in the menus.

If the slider bar is activated, the compression range is adjustable from 10-35 to 1. A LAN connection at the low

quality setting, expect as much as 13-15 images per second burst. Sustained rate will be lower, depending on

other variables like network traffic. Worst case conditions, at High Quality setting, you might get as low as 1

image per second if there’s a lot of network traffic.

Ethernet connections can display 1-12 images per second. Modem connections display 1 field per second or

slower. This applies to any DVMS system not using an external Multiplexer.

A Modem connection will refresh a picture every few seconds to 1 picture a second. This assumes a fairly high-

speed modem connection, such as 28K baud-33.6K baud.

Remote Live Viewing options

With DVMS 400 over RAS, you can view a single camera or quad view live. Selection of different live views does

not affect the recording. With DVMS 100 recording one camera, you can monitor that single camera live. Refer to

the DVMS 100 section for options with a Multiplexer.

Remote Audio/Text Enable

You can monitor live audio through RAS if the checkbox is enabled. It does require the PC to have a sound card

and speakers for this to function. Naturally, you would have to have an audio source wired to the DVMS as well.

The live audio CANNOT be recorded along with the video stored to the PC hard drive. (Note: The Remote Audio is

currently disabled in existing versions of RAS. We expect remote audio to be enabled in the very near future)

If a text generation device is wired to the text insertion port(s) of DVMS, you can remotely enable or disable the

text displayed on the RAS video window. This does not affect recording.

Recording of Live View to PC Hard Drive

By enabling the RECORD TO COMPUTER>RECORD VIDEO checkbox, you can record the live view that is currently

transmitted, to the local PC hard drive. These are stored as video clips, and can be replayed at a later time. Also,

these can be emailed or viewed on another PC running RAS. Additionally, you can store bitmap images, too.

Remote Pre-recorded Retrieval and Search - Duplex

By enabling the PLAY button, you can retrieve a video clip that was recorded previously. This clip can be

streamed to the RAS PC, allowing viewing while being transferred. Additionally, you can select to store part or the

entire clip to the local PC drive. This clip can then be emailed or replayed at a later time.

By enabling the SEARCH button, you can create or run and existing Video clip “report”. This report will search and

filter out just the clips that meet your specific criteria. For example, you can request “All Clips with transaction

text between Jan 1-Jan 10”. Or request specific motion or alarm based events in a time range. This is particularly

handy for Managers who need to review a type of event on a recurring basis. Another example is to watch

everyone who passes through the employee entrance. This assumes a motion or alarm trigger marked this type

of event.

Both of these functions can be performed while DVMS is recording, providing “Duplex” functionality. However,

this requires enabling the DUALSTREAM function of DVMS, and when connected will reduce recording to a

maximum of 10 images per second.

You can also run a report or manually store specific clips to the Archive drive of DVMS. Again, this can be

performed without interrupting the recording process of DVMS, and with the same capture rate limits.