AT&T MERLIN LEGEND Data Manual page 26

Data Communications with This System
Local Host Computer and LAN Workstations
Figure 1-3 shows how data stations can be assigned to DHGs to provide access
to a local host computer and a workstation on a local area network (LAN).
1. Local Host Computer connects a local host computer via a modem or data
module to the control unit.
The modems and data modules connect to RS-232 ports on the host
computer. Each modem is assigned to a station jack on a 012 or 008 OPT
module and each data module connects to a 008 MLX module station jack.
2. LAN Workstation connects a data terminal or computer (workstation) on the
IAN via modems or data modules to the system. A LAN is a group of
terminals or PCs connected to each other or to a local host.
Figure 1-3 shows how a data station communicates with a local host computer
or another workstation by dialing one extension number. For example, extension
711 could be assigned to the data station DHG, and extension 773 could be
assigned to the modem DHG for communicating with the local host computer.
Extension 774 could be assigned to the data station DHG and extension 775
could be assigned to the modem DHG for communicating with other
workstations on the LAN.
Data Communications Components
1-9