Black Box COMPACT T1 quick start Isdn BRI Card, OCU-DP Card

Quick Start

Service Cards

ISDN BRI Card

There is an LED for each ISDN BRI on a card, as described in the table below:

State	Description
Off	Line U-interface is attempting synchronization, or BRI is Out-of-Service.
Red	Line alarm (LOS or self test failure)
Yellow	ES or SES has occurred.
Flashing yellow	Line U-interface is synchronized with customer equipment, but is not
	passing customer data.
Flashing green	Line U-interface is in external loopback toward the switch at the unit.
Green	Normal (Line U-interface is active and transparently passing customer data)

OCU-DP Card

There are two LEDs for each channel on the OCU-DP card. The function for each LED is listed below:

State		Description
Yellow Flickering	ALL	Boot Software in control.
Green (walking down)	ALL	Application Software in control
Red (walking up)		(repeated 3.5 times).
Red, slow flash	ALL	In Boot. Application flash code checksums did not
		match and Boot is waiting for application download.
Red	ALL	In Application code waiting for Controller to issue SW/
		HW revision request. This is the first request that comes
		from the OCU-DP card manager in the Controller.
Green	Top	Port in Self-test. Duration is 5-8 seconds.
Yellow	Bottom
Off	Top	Port is set down (Out-Of-Service).
	Bottom
Green	Top	Port is receiving valid signals.
Red	Top	Port is receiving no signal (primary) or no frame sync
		(secondary or clear channel).
Red Flashing	Bottom	Port is receiving bipolar violations
Yellow	Bottom	Port is in loopback.

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