ADC H2TU-C-231 manual 25

LTPH-UM-1109-01, Issue 1 Provisioning

Table 5 describes the Standard Config menu options and Table 6 on page 18 describes the ADC Config menu options. Selections in bold type indicate factory default settings.

Table 5. H2TU-C-231 List 2 Standard Config Menu Options

Standard Config	Front-Panel
	Display	Selection	Description
Menu Options
	Code
Loopback	LBTO	NONE	Disables automatic time-out cancellation of all loopbacks.
Timeout		20	Sets automatic cancellation of all loopbacks to 20 minutes after initiation.
		60	Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
		120	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. The
Threshold		40 dB	loop attenuation threshold can only be set through the maintenance screens.
			Zero disables the alarm.
		35 dB	Default value.
Margin Threshold	MARG	0 to 15 dB	Determines the minimum allowable margin below which a system alarm can
			occur. The Margin (Alarm) Threshold can only be set through the
			maintenance screens. Zero disables the alarm.
		4 dB	Default value.
DS1 Frame	FRMG	AUTO	Configures the HiGain HDSL2 system to operate in an auto-framing (AUTO)
Formatting			mode in which it continuously searches the input DS1 bit stream for a valid
			SF or ESF frame pattern. Both line and path performance parameters are
			maintained. Unframed payloads will cause the ES-P and SES-P counters to
			increment.
		SF	Configures the HiGain HDSL2 system to search for the SF framing pattern at
			its DS1 input.
		ESF	Configures the HiGain HDSL2 system to search for the ESF framing pattern at
			its DS1 input.
		UNFR	Configures the HiGain HDSL2 system to operate in an unframed mode. This
			mode disables the auto framing process and forces the system to function as
			a transparent bit pipe. Only line parameters are considered when monitoring
			DS1 performance.
DS1 Line Coding	DS1	AUTO	The H2TU-C-231 and H2TU-R monitor the incoming DS1 bit streams for the
See “DS1 Line			B8ZS code. If the H2TU-R detects this code, the H2TU-C enters B8ZS output
			mode. The H2TU-C reverts back to AMI output mode if no B8ZS codes are
Coding (DS1)
			received at the H2TU-R input for 5 seconds. Similarly, when the H2TU-C
Option” on
page 19.			detects the B8ZS code, the H2TU-R enters B8ZS mode and returns to AMI
			mode if no B8ZS code is received at the H2TU-C input for 5 seconds.
		B8ZS	Places both the H2TU-C-231 and H2TU-R into B8ZS mode.
		AMI	Places both the H2TU-C-231 and H2TU-R into AMI mode.
H2TU-C	EQL	EXT	Disables the H2TU-C internal equalizer, allowing connection of external
Equalization			equalizer hardware.
See “H2TU-C		0	Sets the Equalizer to DSX-1 for 0 to 132 feet.
Equalization		133	Sets the Equalizer to DSX-1 for 133 to 265 feet.
(EQL) Option.” on
page 20.)		266	Sets the Equalizer to DSX-1 for 266 to 398 feet.
		399	Sets the Equalizer to DSX-1 for 399 to 532 feet.
		533	Sets the Equalizer to DSX-1 for 533 to 655 feet.
			Continued

H2TU-C-231 List 2 January 9, 2002 17