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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
561Data modules
17
data-line
Assigns a Data Line Data Module. The Data Line Data Module
(DLDM) screen assigns ports on the Data Line circuit pack
(DLC) that allows EIA 232C devices to connect to the system.
The DLC, with a companion Asynchronous Data Unit (ADU),
provides a less expensive data interface to the system than
other asynchronous DCP data modules.
The DLC supports asynchronous transmissions at speeds of
Low and 300, 1200, 2400, 4800, 9600, and 19200 bps over
2-pair (full-duplex) lines. These lines can have different
lengths, depending on the transmission speed and wire gauge.
The DLC has 8 ports. The connection from the port to the EIA
device is direct, meaning that no multiplexing is involved. A
single port of the DLC is equivalent in functionality to a data
module and a digital line port. The DLC appears as a data
module to the Digital Terminal Equipment (DTE) and as a
digital line port to the switch.
The DLC connects the following EIA 232C equipment to the
system:
■ Printers
■ Non-Intelligent Data Terminals
■ Intelligent Terminals, Personal Computers (PCs)
■ Host Computers
■ Information Systems Network (ISN), RS-232C Local
Area Networks (LANs), or other data switches.
ethernet
Assigns an Ethernet data module. The Ethernet Data Module
screen assigns the 10BaseT port on the Control-LAN (C-Lan)
circuit pack. This port provides a TCP/IP connection to
network hub or LAN. Refer to DEFINITY ECS Administration
for Network Connectivity for more information on Ethernet
data modules.
Valid entries Usage