ADTRAN ESU 120e user manual Data, Cts, Dcd, Dsr, Inhib, Inband, Source

Chapter 5. Configuration Menu

Menu Item	Description
DATA	Used to control the inverting of the DTE data. This
	inversion can be useful when operating with an
	HDLC protocol. Often used as a means to ensure
	1s density.
	Choices: Normal or Invert
	If Invert is selected, zero (0) inhibit should also
	be selected to prevent an open DTE input from
	placing zeros on the network.
CTS	Used to control characteristics of CTS.
	Choices: Normal, (see Table 3-A) or Force On
DCD	Data Carrier Detect. Indicates to the DTE when a
	valid signal is being received at the Network
	Interface.
	Choices: Normal (see Table 3-A) or Force On
DSR	Data Set Ready. This signal indicates to the DTE
	when the DCE is turned on and ready for
	operations.
	Choices: Normal (see Table 3-A) or Force On
0 INHIB	The Nx interface will detect an uninterrupted
	string of zeros (0s) being transmitted toward the
	network. If 0s are transmitted for >1 second, the
	TSU 120 will force 1s.
	Choices: On or Off
INBAND	The Nx56/64 port is capable of providing an
	inband communications channel (for T-Watch and
	SNMP) between units. This is accomplished by
	using 8 kbps of the first DS0 assigned to that
	particular Nx56/64 port. If in 56 K mode, no data
	bandwidth will be used. Inband must also be
	enabled at the destination port.
	Choices: On or Off, On Demand
TX CLK	This controls the source of the clock used by the
SOURCE	TSU 120e to accept transmit data from the DTE.
	The default is Internal. If the application requires
	that the DTE device provides the clock with the
	transmit data, the External setting is used.
	Choices: Internal, External

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