Figure 67
NT6D11AB, NT6D11AD DCHI with ISL high-speed programming jumper settings
DCE
DTE
PORT 0
DCE
DTE
DCE
DTE
PORT 1
DCE
DTE
ISDN Primary Rate Interface
ISL installation
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RS-232
RS-422
RS-232
RS-422
RS-232
RS-422
RS-232
RS-422
Installation and Configuration
553-7350