Local Loopback, Color Indication | ADTRAN SLC-5 U-BR1TE III guide

To initiate a point-to-point test, perform the following:

1.Connect the DS0 digital tester to the RJ-45 jack.

2.Configure the test set for Near Logic and 64kbps.

3.Select the desired test direction and bearer channel using the address select knob.

4.If the far-end unit is a SLC-5 U-BR1TE III, perform steps 1-3, choosing the same front panel selections. Ensure both test sets are configured for the same test pattern (511, 2047).

5.If the far-end is another device, follow the appropriate directions to provide a point-to-point test.

Local Loopback

The U-BR1TE III incorporates a special test mode to provide a local 2B+D bilateral loopback. Once invoked, this test allows an upstream and downstream test set to send a straight-away test pattern. To put the U-BR1TE III into this test mode, select ADR7 on the address select knob and insert the channel unit into the channel bank. The CR and LP LEDs will flash GREEN once the U-BR1TE III is in this special mode. To discontinue the special test mode, turn SW3 in either direction deselecting the ADR7 position. This will cause the unit to reset and return to normal operation.

		Table 4. Front Panel LED Indication

LED	Color	Indication

LP (Loop)	Amber	Synchronization over the loop has not been achieved.
	Green	Solid in response to a 2B+D loopback. Flashes once per second for B1, twice per
		second for B2 in response to an eoc loopback from the loop side and during DS0
		logic test when the remote unit has successfully looped over the loop side, or in
		LPTX or CRTX testing.
	Off	Synchronization over the loop has been achieved. No loopbacks or tests are in
		progress.

CR (Carrier)	Amber	Synchronization over the carrier has not been achieved.
	Green	Solid in response to a 2B+D loopback. Flashes once per second for B1, twice per
		second for B2 in response to an eoc loopback from the carrier side and during DS0
		logic test when the remote unit has successfully looped over the carrier side, or in
		LPTX or CRTX testing.
	Off	Synchronization over the carrier has been achieved. No loopbacks or tests are in
		progress.

LP and CR	Amber	U-BR1TE II channel unit has violated the physical slot restrictions or is not
	(flashing)	provisioned correctly.
	Green	BCU has been removed from service or the U-BR1TE II is in special test mode
	(flashing)	(refer to Local Loopback subsection).

CR (only)	Amber	The channel bank has informed the U-BR1TE II that a network or trunk alarm is
	(flashing)	present.

ACT (Active)	Green	ISDN Application - Indicates that the terminal equipment has exchanged ACT bits
		with the ISDN switch.
		DDS Application - Indicates loop is terminated with an OCU-R
	Green	ISDN Application - Once per second indicates that the ACT bit is being sent in one
	(flashing)	direction only.

61102040L4-5B

Section 61102040L4-5, Issue 2

SLC-5 U-BR1TE III specifications

The ADTRAN SLC-5 U-BR1TE III is an advanced digital subscriber line (DSL) technology that plays a crucial role in delivering high-speed broadband services to residential and commercial customers. As part of the SLC-5 product line, this device is designed to seamlessly support both traditional TDM and next-generation packet services, ensuring versatility and strong performance in various network configurations.

One of the key features of the SLC-5 U-BR1TE III is its ability to support multiple DSL technologies, including ADSL, ADSL2+, VDSL, and VDSL2. This flexibility allows network operators to deploy the most suitable technology based on customer requirements and available infrastructure. By utilizing these DSL technologies, the device provides enhanced data rates, allowing for increased bandwidth and better overall service quality.

The SLC-5 U-BR1TE III is known for its robust architecture, which accommodates up to 48 DSL lines per unit. This high-density capability makes it an attractive option for service providers aiming to optimize their network investments. Additionally, the unit supports various interfaces for integration within existing systems, including T1/E1 and Ethernet, making it easier to connect to core networks without significant upgrades.

Another notable characteristic of the SLC-5 U-BR1TE III is its built-in intelligence, which enables dynamic bandwidth allocation. This feature optimizes how bandwidth is distributed among subscribers to ensure equitable access and smooth service delivery, even during peak usage times. Furthermore, the device supports advanced monitoring and management capabilities, helping operators maintain network performance and address issues proactively.

In terms of deployment, the SLC-5 U-BR1TE III is designed for easy installation in diverse environments, such as central offices or remote locations. Its compact form factor and fan-less design contribute to reduced power consumption and lower operating costs, making it an environmentally friendly choice.

Overall, the ADTRAN SLC-5 U-BR1TE III is an exemplary solution for service providers seeking to enhance their DSL offerings. With its support for multiple DSL technologies, high-density capabilities, dynamic bandwidth management, and ease of deployment, it continues to be a cornerstone in the evolution of broadband connectivity, paving the way for improved user experiences and increased satisfaction.

Local Loopback

Table 4. Front Panel LED Indication

LED

Color

Indication

SLC-5 U-BR1TE III specifications