ADTRAN 550 user manual Loc Lb

Chapter 7. Module Terminal Menus

TEST Initiates different types of tests and displays test results.

These TEST commands temporarily disrupt service.

PRT

Identifies the port number.

LOC LB

Write security: 4; Read security: 5

Causes loopback on near-end port. (Local Loopback)

LINE Metallic loopback.

PAYLD Payload loopback framing and clocking are regenerated.

REMOTE LB

Write security: 4; Read security: 5

Sends a loopback code to a remote CSU.

ANSI FDL LINE Sends ANSI line loopback code. Requires ESF mode.

ANSI FDL PYLD Sends ANSI payload loopback code. Requires ESF mode.

ATT INBAND LINE Sends line loopback using inband code.

PATTERN

Write security: 4; Read security: 5

Specifies the test pattern to be transmitted out the port.

ALL ONES Framed ones

ALL ZEROS Framed zeros

QRSS Pseudorandom pattern with suppression of excess zeros

QRSS/RLB RESULTS Read security: 5

(Remote Test Pattern Results) Suppresses excess zeros—indication of sync and errors of received data pattern.

CLR

Write security: 3; Read security: 5

(Test Pattern Results Clear) Clears current error counters on test pattern results menu.

INJ

Write security: 3; Read security: 5

(Test Pattern Error Inject) Injects errors into transmitted test pattern.

61200305L1-1 ATLAS 550 User Manual 7-7