Maintenance Exceptions; Cannot Enable Node - Northern Telecom DMS-100 Series Manual

5-2 Signal processing node

Maintenance exceptions

Any time a reference is made to replacing or resetting hardware (that is,
cards, terminals, etc.) any referenced maintenance procedures should be
followed. Follow the appropriate card replacement procedures contained in
DMS VoiceMail Card Replacement Procedures (NTP 297-7001-502).

Cannot enable node

Verify that power is being applied to the node
Check that the power converters for the SPN are on. If the power converters
fail to remain on, refer to the DMS VoiceMail Card Replacement Procedures
(NTP 297-7001-502).
Verify that the disk shelf power is on
Check that the disk shelf power converters are on. If the power converters
fail to remain on, refer to the DMS VoiceMail Card Replacement Procedures
(NTP 297-7001-502).
Verify that the disk cables are correctly connected
Check that the cables on ports four and six of the 68K transition module are
secured. If the 68K transition module has been recently replaced, check that
the cables have been connected to the correct ports. This can be
accomplished by checking the labels on the cables.
The cables are labelled with a three-number code (for example, 26-4-30).
The first number refers to the shelf. The upper electronics shelf is 39 and
the lower electronics shelf is 26. The second number refers to the port on
the card. The upper port is two, the middle port is four, and the lower port is
six. The last number refers to the card slot on the shelf.
Verify that the disk packs are present and seated properly
If a disk pack is missing, then install it in the correct position of the node.
Refer to the DMS VoiceMail Planning and Engineering Guide (NTP
297-7001-100) for hardware location information.
Check that the disk pack for the node is seated properly. If not, carefully
reseat the disk pack.
Verify that the cards are present and in correct positions
If any of the card, front or back, are missing, then install them in the correct
positions for the node. Refer to the DMS VoiceMail Planning and
Engineering Guide (NTP 297-700-100) for hardware location information.
Check that the node is configured correctly, front and back. If not, then
move cards to the correct positions. Refer to the DMS VoiceMail Planning
and Engineering Guide (NTP 297-7001-100) for hardware location
information.
297-7001-503 Standard 02.02 March 1994