Verilink Access Manager 2000 (896-502037-001) Product Manual User Manual

Page 236

Configuring the T1 Network

5-112

Access Manager 2000 User Manual

44. Type the shelf and plug-in slot numbers of the NCC or TAC, and

press the

function key. The Select CSU Test Activity menu

appears.

45. Choose

the

Send QRSS Test Pattern

option and press

. The Test Current Node screen appears. Enter the following

settings and press

•

Test Duration: FOREVER

•

To Network or Equipment: N (Network)

•

Test From Far End: N (No)

46. Type

to send the test signal when the test warning screen

appears. The Select CSU Test Activity menu appears again.

47. Verify that the STAT LED is lit yellow on the near-end and far-end

CSUs (NCC or TAC), indicating the test is in progress.

If the STAT LED flashes red and yellow at the far-end, the test has
failed (CSU is detecting errors in the looped QRSS signal). Replace
the far-end NCC or TAC and repeat the acceptance procedure. (The
near-end NCC or TAC and the T1 circuit were checked in the
previous steps, using the LLB loopback of this procedure.)

48. Select

the

View Test Status Results

option. If the screen

shows some Errors, the test has failed. Replace the far-end NCC or
TAC and repeat the acceptance procedure. (The near-end NCC or
TAC and the DS1 circuit were checked in the previous steps, using
the LLB loopback of this procedure.)

49. Press

to return to the Select CSU Test Activity screen, then

select the

Abort Test in Progress

option and press

50. Press

to return to the On-line: AS2000 screen.

51. Choose

the

Loopbacks

option and press

52. Enter the Shelf number and Plug slot number of the NCC or TAC,

and press the

function key.

53. Choose

the

Deactivate Network Loopback (PLB and

LLB)

option and press

Enter