Instruction manual

MERLIN LEGEND Communications System Release 5.0
System Planning
555-650-112
Issue 1
June 1997
Data Communications
Page 5-13About 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 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.
Figure 5-5. ISDN Terminal Adapter Data-Only
Digital
Signal
Digital
Signal
Data Station
MERLIN
LEGEND
Control
Unit
DCEDTE
Credit Card
Verification
PC Terminal
Host
Computer
Analog or Tip/Ring
Extension Jack
MLX 
Extension Jack
Terminal
Adapter
Optical
Scanner

Fax