Modem Data-Only; Mlx Voice And Modem Data - Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
5 Data Communications
About Data and Video Communications

Modem Data-Only

This type of modem data station includes only DTE and a modem (see
Figure 5-2). The modem connects to the control unit through an analog port on a
T/R module. If the modem does not provide dialing capability, a single-line
telephone can be connected to it to provide dial-out capability; however, the data
station and the telephone cannot be used simultaneously.
Optical
Scanner
Fax
Credit Card
Verification
PC Terminal
Host
Computer
Figure 5-2.
Modem Data-Only

MLX Voice and Modem Data

This type of analog data station includes an MLX telephone in addition to the DTE
and modem (see
the T/R interface of the Multi-Function Module (MFM), which is installed in the
MLX telephone. The telephone connects to the control unit through an MLX
extension jack. The communication capabilities of the MLX telephone and data
station can be used simultaneously.
Data Station
DTE
Digital
Signal
Single-line
Telephone
(if required for dialing)
Figure 5-3). The modem connects to the MLX telephone through
5
MERLIN
DCE LEGEND
Control
Analog
Signal
Modem
5
April 1999
Unit
Analog or Tip/Ring
Extension Jack
MLX
Extension Jack
Issue 1
5-8