DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1090MODEM-PT (Modem Pool Port)
9
Modem Pool Conversion Resource Loop-Around Test (#98)
The Modem Pool Conversion Resource Looparound Test is set up as follows:
Figure 9-64. Modem Pool Conversion Resource Loop-Around
Test data patterns are transmitted from a Maintenance/Test Board digital p ort
over network time slot A through the dig ital port on the conversion resource,
looped around throug h the analog port via time slot C bac k to the
Maintenance/Test Board digital port c ircuit via time slot B where the patterns are
checked for ac curacy. Finally, the test forces a disconnect by b reaking the
connection between the Mai ntenance/Test Board digital port and the M odem
Pool Port (time slot A) and verifying that the Maintenanc e/Test Board digital port
and Modem Pool Port go on-hook within the prop er time.This test attempts to
allocate a Maintenance/Test Board digital p ort, Modem Pool Port, and other
internal resources. If any of these allocation at tempts fail, the test cannot be
completed and a specific abor t error is reported.
TS-A
TS-C
ANALOG
PORTION
DIGITAL
PORTION
MAINTENANCE/
TEST BOARD
(TN771B)
DIGITAL
PORT
MODEM POOL CONVERSION RESOURCE
TN758 POOLED MODEM CIRCUIT PACK
TS-B