Filter
Top Products
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1043PR-MAINT (Maintenance Processor [TN790 RISC Systems])
10
MTP Dual Port Ram Test (#104)
This test is destructive.
The test terminates any PPN SAT session, and it is a coordinated test of the MTP
dual port ram (DPR). The DPR is a section of memory that is shared by the MTP
and by the RISC Processor circuit pack. Control messages and data are passed
through the DPR. The test forces both sides to read and write the DPR
simultaneously in alternate locations.
The DPR test causes the PPN SAT to log off before the test result is displayed.
The test result is determined according to the terminal from which the test is run.
If the test is run from the PPN SAT, system technician should log back in and
examine the Error Log for an error against PR-MAINT, with Error Type 769, no
FAIL MTP reported test failure. The system is not able to reliably contact INADS
with alarm data. However, the system continues to provide good service.
1. For an internal modem:
a. If MTP Outpulse Relay Test (#102) is also failing, check for the
presence of the INADS trunk, and resolve any INADS trunk problems.
b. If Test #102 passes, the fault is on the Processor circuit pack. The
circuit pack should be replaced.
2. For an external modem:
a. Check the power to the modem.
b. Check the RS-232 cable connections from the DCE terminal on the
switch to the DTE connector on the modem. Transmit, Receive, RTS,
and CTS signals must be communicating between the MTP DUART
hardware and the modem hardware
c. The MTP DUART or related circuitry on the processor circuit pack may
have failed. The circuit pack should be changed at your convenience.
PASS For an internal modem—MTP detected correct data through the loop back
connection.
For an external modem—The test detected correct data through the loop
back in the MTP DUART hardware ahead of the RS232 connection to the
modem, and received a CTS signal from the external modem.
1. If the system cannot call INADS, or if INADS cannot contact the system,
check with the local Central Office for problems with the INADS trunk,
and verify that the INADS number is correct.
Table 10-356. TEST #103 MTP Analog Loop Around Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page