THE CYBERSWITCH

Remote ISDN Devices

More detailed descriptions of system software and hardware are included in the next two chapters. The following section describes remote ISDN devices.

REMOTE ISDN DEVICES

The CyberSWITCH provides a centralized concentrator function for remote ISDN devices. The devices can be separated into the following categories:

remote ISDN bridge devices

PC based terminal adapters

ISDN enabled workstations

other ISDN routers

Typical remote ISDN bridges provide one Ethernet port and one basic rate ISDN port. The basic rate port is connected to the switched digital network and is used to make connections to the CyberSWITCH. The Ethernet port is used to connect to a remote LAN. The remote bridge device sends Ethernet frames from devices on the remote LAN over the switched network.

PC-based terminal adapters connect to a remote personal computer and use the switched digital network to connect to the system. The terminal adapter sends network protocol specific frames from the host PC device over the switched network.

Workstation-based terminal adapters connect to a workstation and use the switched digital network to connect to the system. The terminal adapter sends network protocol specific frames from the workstation over the switched network.

Central Site Remote Access Switch 39

Page 39
Image 39
Enterasys Networks CSX5500, CSX6000, CSX7000 manual Remote Isdn Devices