Lucent Technologies 6.1 用户手册
MERLIN LEGENDCommunications System Release 6.1
System Planning
System Planning
555-661-112
Issue 1
August 1998
Data Communications
Page 5-13
About Data and Video Communications
5
ISDN Terminal Adapter Data-Only
5
This type of digital data station includes only the DTE and ISDN terminal adapter.
The ISDN terminal adapter connects the DTE to the system through an MLX
extension jack on the control unit (see
The ISDN terminal adapter connects the DTE to the system through an MLX
extension jack on the control unit (see
Figure 5–5
). Since the configuration does
not include an MLX telephone, if a 7500B data module is used as the ISDN
terminal adapter, a 440A4 terminating resistor adapter is required.
terminal adapter, a 440A4 terminating resistor adapter is required.
Figure 5–5.
ISDN Terminal Adapter Data-Only
Digital
Signal
Signal
Digital
Signal
Signal
Data Station
MERLIN
LEGEND
Control
Unit
DCE
DTE
Credit Card
Verification
PC Terminal
Host
Computer
Analog or Tip/Ring
Extension Jack
Extension Jack
MLX
Extension Jack
Extension Jack
Terminal
Adapter
Optical
Scanner
Fax