Polycom RMX 1000 User Guide
| Abbreviation/Term |
| Explanation |
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| telecommunications. |
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| LAN |
| Local Area Network. A group of computers and other devices |
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| linked via a network’s operating system. |
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| Line Rate |
| The amount of bandwidth used by a communication device, |
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| measured in Kbps (kilobits per second). |
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| MCU |
| Multipoint Control Unit. Device which allows more than two |
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| sites to be connected in a video conference. |
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| Personal Conference Manager, a user interface displayed on |
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| the endpoint’s video output screen. The user interacts with |
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| the PCM through the DTMF command and FECC function by |
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| PCM |
| using the endpoint remote control, to implement conference |
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| control at the MCU. For example, create a conference, dial |
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| into a conference, set the window layout, remotely control |
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| the camera, and terminate a conference. |
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| Participant |
| A person using an endpoint to connect to a conference. |
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| Quarter CIF. A video format with image size of 176x144 |
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| QCIF |
| pixels that transmits 30 frames at 9.115Mbps per second |
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| (a quarter of the capacity of CIF). For more information, see |
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| CIF. |
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| Quality of Service. QoS defines the performance of a |
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| QoS |
| network service, such as the average delay between |
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| packets. |
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| ToS |
| Type of Service. It defines optimization tagging for routing |
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| audio and video packets. |
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| WAN |
| Wide Area Network. A communications network that services |
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| a geographical area larger than the LAN. |
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| High Definition (HD) refers to |
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| resolutions. An |
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| conference at a resolution of 1280x720 (720p) and a bit rate |
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| High Definition (HD) |
| of 384kbp~ 4Mb. When setting up an HD video conference, |
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| all participants connected to the conference are required to |
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| use the same conference bit rate and same HD settings. |
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| Those endpoints unable to meet the above requirements will |
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| be treated as secondary connections (audio only). |
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