MERLIN LEGENDCommunications System Release 6.1 | Issue 1 |
System Planning 555-661-112 | August 1998 |
5 Data Communications | |
About Data and Video Communications | Page 5-5 |
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About Data and Video
Communications5
This section provides a high-level overview of the system’s data and video communications capabilities, followed by more detailed information about some of the equipment and concepts introduced in this overview.
Data communications connectivity enables the system to share resources, as well as to establish and manage connections between computers and other data devices.
Video communications connectivity enables users to conduct personal or group video conferences and to share data and applications (also known as Video Collaboration).
The system control unit (hardware and software) in conjunction with other external hardware devices provides data and video connectivity for the following:
■On-premises analog data stations
■Connection to off-premises data stations by way of an analog line/trunk (GS, LS, Tie, or DID), by way of a dedicated analog line/trunk, or by way of a DS1 Digital Service Link providing emulated GS, LS, Tie or DID trunks
■On-premises ISDN terminal adapter data stations
■Connection to off-premises digital data stations by way of a PRI, NI-1 BRI, or T1 Switched 56 facility (including T1-Tie trunks using T1 Switched 56 service)
■Connections between two similar types of data stations
■Connection between a digital data station (on a B-channel) and an analog data station by way of 2-stage dialing through a modem/ISDN terminal adapter pool. This configuration is not described in this book; see application note, MERLIN LEGEND Communications System Modem Pooling.
■On-premises host computer access
■Local area network (LAN) access by way of a modem or ISDN terminal adapter connected to an RS-232 port on a workstation on the LAN
■On- and Off-premises personal or group video systems by way of a digital PRI, NI-1 BRI, or T1 Switched 56 facility (including T1-Tie trunks using T1 Switched 56 service)
