Lucent Technologies 5 manual Additional Telephone Adjuncts, Data Communications Adjuncts

MERLIN LEGEND Communications System Release 5.0	Issue 1
System Manager’s Guide 555-650-118	June 1997
3 System Components
Adjuncts	Page 3-40
Additional Telephone Adjuncts	3

You can also connect answering machines and credit card verification terminals to telephones.

Data Communications Adjuncts 3

You can use a variety of data communications equipment (DCE) with the system. This equipment connects to analog, T/R (tip/ring), or MLX extension jacks and to analog or digital lines/trunks. Data terminal equipment (DTE), such as a PC, connects to the DCE. Generally, dialing is performed at the DTE keyboard, although some configurations use a telephone or data module for dialing. When a telephone is included in your data workstation, you usually use an MFM or GPA as well.

NOTES:

1.For the most up-to-date information about data and video communications, consult the Data/Video Reference.

2.If you are using data or video communications devices with the system, contact your Lucent Technologies representative to find out whether there is an applications note that describes the installation and use of your particular equipment.

The types of DCE that the system supports include:

■Modems. The system works with a variety of modems for data communications use within the system over analog system lines, or over analog lines/trunks, such as standard loop-start or ground-start lines/trunks (as well as T1 voice facilities emulating ground-start or loop-start lines/trunks). A modem can connect an MLX telephone (with an MFM installed). The modem serves a data terminal (such as a PC or printer) and connects to the system through an MLX extension jack. A GPA allows connection of a modem to an analog extension jack and analog multiline telephone. A modem can also connect to a T/R extension jack on a 008, 012, or 016 (Release 4.0 and later) module for use with data terminals that do not share an extension with a telephone.

■ISDN Terminal Adapters. Also called digital modems, these devices allow high-speed data or video communications over digital facilities.

An ISDN terminal adapter is designed for digital communications within the system or over NI-1 BRI (National Integrated Services Digital Network Basic Rate Interface), PRI (Primary Rate Interface), or T1 Switched 56 facilities. A terminal adapter serves the same purpose as a modem but facilitates high-speed digital communications. Terminal adapters always connect to the system through MLX extension jacks.

You can set up a terminal adapter to handle a variety of data terminal equipment (DTE), including V.35 group videoconferencing systems and Group IV (G4) fax machines.