ADTRAN 1200305L1 system manual Modules T1/PRI-1 Configuration Adlp Over FDL, Modules T1/PRI-1 Test

ATLAS 550 System Manual Section 4, User Interface Guide

MODULES (T1/PRI-1) > CONFIGURATION > LB ACCEPT

Write security: 3; Read security: 5

Sets unit to accept or reject the in-band loop up and loop down codes as defined in ANSI T1.403. This is a line loopback. Choose either ACCEPT or IGNORE.

MODULES (T1/PRI-1) > CONFIGURATION > PULSE DENSITY

Write security: 3; Read security: 5

Choose either ON or OFF. When ON, Pulse Density Enforcer causes the ATLAS 550 to monitor for ones (1s) density violations and insert a one (1) when needed to maintain ones at 12.5%. This data insertion will cause data errors.

MODULES (T1/PRI-1) > CONFIGURATION > ADLP OVER FDL

Write security: ADTRAN Use Only; Read security: 5

The ADTRAN Data Link Protocol (ADLP) provides a communications link between ADTRAN equipment over point-to-point or multidrop connections that can be used for configuring and monitoring remote ADTRAN devices. Choose ENABLE to activate the ADLP over the FDL for the DS1 interface.

MODULES (T1/PRI-1) > TEST

Write security: 5; Read security: 5

These options initiate different types of tests and display test results.

MODULES (T1/PRI-1) > TEST > PRT

Read security: 5

Displays the port number.

MODULES (T1/PRI-1) > TEST > LOC LB

Write security: 4; Read security: 5

Initiates a loopback on near-end (local) port (see Figure 9). The following options are available:

LINE	Metallic loopback
PAYLD	Payload loopback - framing and clocking are regenerated

T1/PRI

NI CSU

DS1

Payload Loopback

Line Loopback

Figure 9. T1/PRI Loopback Test Diagram

61200305L1-1F © 2002 ADTRAN, Inc. 109