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Port Configuration (Port Config)
Port Configuration selects and configures the parameters associ-
ated with any data port in the unit. For example, parameters for
the Drop Port Interface (PBX) interface are set through this menu.
The items that can be set depend on which option module is
installed. The list of option ports will vary with the configuration.
The ESU 120e is designed so that any additional ports developed in
the future will contain the appropriate menu selections to provide
access by use of this menu item.
The Config menus for options ports are described in separate sec-
tions of the manual supplied with the option card.
0.1 Nx56/ 64 Port Configuration (Port Config) Menu Items
The menu items are:
Menu Item
INTERFACE This option sets the electrical interface for the Base
TSO RATE
TX CLK
CNTRL
61200420L1-1
Nx56/64 port.
Choices: V.35, V.11 (X.21), RS530, V.36
This sets the base rate of the interface. The actual
data rate depends on the number of DS0s assigned
to the Nx port.
Choices: 56K or 64K
Controls the clock used by the TSU 120e to accept
transmit (TX) data from the DTE. The default is
normal. If the interface cable is long, causing a
phase shift in the data, the clock can be selected as
Invert. This switches the phase of the clock which
should compensate for a long cable.
Choices: Normal, Invert
ESU 120e User Manual
Chapter 5. Configuration Menu
Description
5-17
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