ADC H4TU-C-319 List 1 Line Unit H4TU-C-319 List 1 Standard Config Menu Options, 60 min, 38 dB

LTPH-UM-1031-03, Issue 3 Provisioning

Table 5 describes the Standard Config menu options and lists their menu screen display codes. Table 6 on page 20 describes the ADC Config menu options. Selections in bold type are the factory default settings.

Table 5. H4TU-C-319 List 1 Standard Config Menu Options

Standard Config	Screen	Selection	Description
Menu Options	Display Code
Loopback Timeout	LBTO	NONE	Disables automatic time-out cancellation of all loopbacks.
		20 min	Sets automatic cancellation of all loopbacks to 20 minutes after initiation.
		60 min	Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
		120 min	Sets automatic cancellation of all loopbacks to 120 minutes after initiation.
		8 hr	Sets automatic cancellation of all loopbacks to 8 hours after initiation.
		24 hr	Sets automatic cancellation of all loopbacks to 24 hours after initiation.
Loop Attenuation	LATT	0 through	Determines the maximum loop attenuation before an alarm is declared. Zero
Threshold		50 dB	disables the alarm. The loop attenuation threshold cannot be set from the
			front-panel pushbuttons.
		38 dB	Default value.
Margin Threshold	MARG	0 to 15 dB	Determines the minimum allowable margin below which a system alarm can
			occur. Zero disables the alarm. The Margin (Alarm) threshold cannot be set
			from the front-panel pushbuttons.
		4 dB	Default value.
DS1 Frame	FRMG	AUTO	Configures the HDSL4 system to operate in an auto-framing (AUTO) mode. It
Formatting			detects and locks to both SF or ESF DS1 frame patterns. Line and path
			performance parameters are maintained and displayed. Unframed payloads
			cause the ES-P and SES-P counters to increment.
		SF	Configures the HDSL4 system to search for the SF framing pattern at its DS1
			input.
		ESF	Configures the HDSL4 system to search for the ESF framing pattern at its DS1
			input.
		UNFR	Configures the same as AUTO except unframed payloads do not cause the
			ES-P and SES-P counters to increment.
DS1 Line Coding	DS1	AUTO	The H4TU-C and H4TU-R monitor the incoming DS1 bit streams for the B8ZS
See “DS1 Line			code. If the H4TU-R detects this code, the H4TU-C enters B8ZS output mode.
			The H4TU-C reverts back to AMI output mode if no B8ZS codes are received
Coding (DS1)
			at the H4TU-R input for 5 seconds. Similarly, when the H4TU-C detects the
Option” on page 21.
			B8ZS code, the H4TU-R enters the B8ZS mode and returns to AMI mode if no
			B8ZS code is received at the H4TU-C input for 5 seconds.
		B8ZS	Places both the H4TU-C and H4TU-R into their B8ZS modes.
		AMI	Places both the H4TU-C and H4TU-R into their AMI modes.
H4TU-C Equalization	EQL	0 ft	Sets the Equalizer to DSX-1 for 0 to 132 feet.
See “H4TU-C		133 ft	Sets the Equalizer to DSX-1 for 133 to 265 feet.
Equalization (EQL)		266 ft	Sets the Equalizer to DSX-1 for 266 to 398 feet.
Option.” on page 21.
		399 ft	Sets the Equalizer to DSX-1 for 399 to 532 feet.
		533 ft	Sets the Equalizer to DSX-1 for 533 to 655 feet.
H4TU-R Line	RLBO		Sets the DS1 receive level output toward the Customer Interface (CI). Line
Buildout			buildout can only be set through the maintenance screens.
		0 dB	Sets the DS1 RLBO level toward the CI to 0 dB.
		-7.5 dB	Sets the DS1 RLBO level toward the CI to -7.5 dB.
		-15 dB	Sets the DS1 RLBO level toward the CI to -15.0 dB.
Alarm Pattern	ALMP	AIS	Enables the HDSL4 system to output an AIS payload at its DS1 ports for
See “Alarm Pattern			LOSW and LOS DS1. For priority resolution, see Figure 27 on page 45.
(ALMP) Option.” on		LOS	Enables the HDSL4 system to output an LOS condition at its DS1 ports for
page 22.			LOSW and LOS DS1.
			Continued

H4TU-C-319 List 1 September 12, 2003 19