User manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi

555-233-119 Issue 1

April 2000

Maintenance Objects

3-444DATA-CHL (Data Channel)

Data Channel Local Loop Back Test (#111)

This test verifies the integrity of the dual port RAM that is shared between the

software and hardware that composes the DATA-CHL. The dual port RAM is

placed in local loop back mode such that data to be sent by the DATA-CHL is

instead looped back to be received by the DATA-CHL. The loop back is done

within the dual port RAM, that is, the data is never sent over the TDM Bus. The

test checks that the data received by the DATA-CHL is the same as the data that

was sent by the DATA-CHL.

NOTE:

If an Error Code is encountered that recommends that an CDR Link, System

Printer Link, PMS Log Printer, Wakeup-Log Printer, and/or PMS Link be

busied out, restore each busied-out link to service according to the

PRI-CDR/SEC-CDR (PRI-CDR Link), SYS-PRNT (System Printer Link),

PMS-PRNT/JNL-PRNT (PMS Printer Link), or PMS-LINK (Property

Management System Link) Maintenance documentation, respectively,

before concluding work on the problem.

PASS The target DATA-CHL, Processor circuit pack, TDM Bus (TDM-BUS), and

Tone-Clock circuit pack (TONE-BD, TONE-PT, TDM-CLK) are functioning.

Connections can be established over the target DATA-CHL.

Table 3-188. TEST #110 Data Channel Crosstalk Test — Continued

Error

Code

Te st

Result Description/Recommendation

Continued on next page