PictureTel LIVE100, Руководство по установке, Страница: 36 / 196

INSTALLING PICTURETEL LIVE50 HARDWARE
2-8
Installing
Optional Network
Interface Boards
If you are not using an ISDN connection, you have several network
connection options that require installing one or more network
interface boards. The following table identifies the appropriate
network interface board for each type of network connection. Refer
to Appendix C,
Installing Network Interface Boards
for a complete
description of the installation process.
Note: For V.35 and RS-449 connections, CSU/DSUs (Channel
Service Unit/Data Service Units) may be required
between the PC and the telephone company ’ s digital
network connection. Your installation may already have
these devices in place. Consult your telephone company
representative.
If you need this
connection type: The required hardware boards are
listed here:
ISDN (BRI) No optional network interface boards are
required.
(Consult your telephone provider to
determine if a network termination device
(NT1) is required.)
Integrated 4-Wire SW56 Switched-56 Network Interface
V.35 (or RS-449) dialed/
nondialed DDM/Network Interface