ADC H2TU-C-388 manual 25

152-388-100-02, Issue 2 Provisioning

Table 5 describes the Standard Config screen options and lists their front-panel display codes. Table 6 on page 18 describes the ADC Config screen options. Selections in bold typeface are the factory default settings.

Table 5. HiGain Line Unit List 1 Standard Config Screen Options

Standard Config	Screen	Selection	Description
	Display
Screen 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.
Loop Attenuation	LATT	0 through 40 dB	Determines the maximum loop attenuation before an alarm is declared. The
Threshold			loop attenuation threshold can only be set through the HiGain HDSL2
			maintenance screens.
		35 dB	Default value. Zero disables the alarm.
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 can only be set
			through the HiGain HDSL2 maintenance screens.
		4dB	Default value.
DS1 Frame	FRMG	AUTO	Configures the HiGain 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
			will cause the ES-P and SES-P counters to increment.
		SF	Configures the HiGain system to search for the SF framing pattern at its DS1
			input.
		ESF	Configures the HiGain 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 H2TU-C-388 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)
Option” on			received at the H2TU-R input for 5 seconds. Similarly, when the H2TU-C
			detects the B8ZS code, the H2TU-R enters B8ZS mode and returns to AMI
page 19)
			mode if no B8ZS code is received at the H2TU-C input for 5 seconds.
		B8ZS	Places both the H2TU-C-388 and H2TU-R into B8ZS mode.
		AMI	Places both the H2TU-C-388 and H2TU-R into AMI mode.
H2TU-C	EQL	0	Sets the Equalizer to DSX-1 for 0 to 132 feet.
Equalization
See “H2TU-C		133	Sets the Equalizer to DSX-1 for 133 to 265 feet.
Equalization		266	Sets the Equalizer to DSX-1 for 266 to 398 feet.
(EQL) Option.” on
		399	Sets the Equalizer to DSX-1 for 399 to 532 feet.
page 19.
		533	Sets the Equalizer to DSX-1 for 533 to 655 feet.
H2TU-R Line	RLBO	0 dB	Sets the DS1 receive level output toward the Customer Interface (CI). Can only
Buildout			be set through the HiGain HDSL2 maintenance screens.
		-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 HiGain system to output an AIS payload at its DS1 ports for LOSW
			and DS1 LOS. See Figure 25 on page 38 for LOS/AIS response priorities.
		LOS	Enables the HiGain system to output an LOS condition at its DS1 ports for
			LOSW and DS1 LOS.
			Continued

H2TU-C-388 List 1 June 6, 2000 17