ADC Broadband System manual 243

ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance

DLP-570

Page 10 of 18

Table 570-1. RTAU Configuration Fields, continued

FIELD	TYPE	OPTIONS		DESCRIPTION	DEFAULT
SIGNAL GENERATOR SETUP FIELDS, continued
Pattern Type,	Toggle	1 in 8	Containing strings of 7 sequential 0’s. It is used to determine
continued			the ability of a circuit to handle payload signals having
			minimum 1’s density. Use of this pattern often reveals the
			existence of timing recovery problem under conditions of
			low signal density.
			• Unframed = 1000 0000 1000 0000
			• Framed =	0100 0000 0100 0000
		DALY	Daly Pattern (Modified 55 Octet). This is useful for stressing the
			timing recovery circuits of line cards and the preamplifier/
			equalizer circuits of repeaters. The pattern stresses a circuit by
			introducing rapid transitions from long sequences of low density
			octets to high density octets, high density octets to low density
			octets, and rapid transitions. The pattern may be transmitted
			framed or unframed. When framed, the frame bit shall be inserted
			at the octet boundaries and will not overwrite the bits.
		User Code	For user-defined patterns of 32 bits or less, set the Pattern Type
			field to User Code. The bits can be entered by typing a string
			of 0’s or 1’s in the bit field located to the right of the
			designated entry.
Pattern Bits	Display	None	If the Pattern Type field is configured for User Code, pattern		None
	only		bits will be displayed to the right of the Pattern type field
			parameter. This field’s name is not shown on the screen. If no
			User Code is entered in the Pattern Type field, this field
			displays 32 dashes.
Frame Format	Toggle	UNFRAMED	Unframed data pattern.		UNFRAM
					ED
		Ft ONLY	Used for SLC framing.
		SF	Super Frame
		ESF	Extended Super Frame

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© 2000, ADC Telecommunications, Inc.