700-814-112-01, Revision 01
System Configuration
UTU-814 List 1B
November 24, 1999
13
S
YSTEM
S
ETTINGS
The settings available in the Config System Settings menu are listed in
Table 4.
Settings in Config System Settings Menu
System Setting
Description (
settings in boldface type are default settings)
Application mode
Select one of the following application modes:
UNSTRUCT
System operates in the unstructured application mode using 24 time
slots. Use when LTU and NTU use either the DSX-1 or Nx64k port with
no framing. Two-port (DSX-1 and Nx64k) operation is not possible.
STRUCT
System operates in the structured application mode using 24 time
slots. Use to transport framed voice channels between the LTU and
NTU DSX-1 ports and serial data between the Nx64k ports.
TSP
System operates in time slot prioritization mode. Time slots 1 through
12 transport high priority traffic over Loop 1; time slots 13 through 24
transport low priority traffic over Loop 1. The NTU must be locally
powered. Remote Power Feed must be set to NONE.
SINGLE
System operates in single-pair mode using time slots 1 through 12 on
Loop 1. Use to transport framed voice channels between the LTU and
NTU DSX-1 ports or serial data between the Nx64k ports. The NTU
must be locally powered. Remote Power Feed must be set to NONE.
Remote Power
Feed mode
Select one of the following power feed modes:
NONE
Disables the remote power feed mode. The NTU must be locally
powered. Used for TSP and SINGLE application modes.
POWER
LTU supplies full power to the NTU through both loops.
WETTING
LTU supplies a low level DC current to prevent corrosion of HDSL lines
and connections. The NTU must be locally powered.
