Nortel Meridian Meridian 1 Upgrade Manual page 36

Page 36 of 284 Performing the upgrade
NN43021-469 Standard 01.01 May 2007
• NT5D97AB, AD (2.0MB) support
• Both NTRC46 cables must be the same length
The shortest Fiber Cable must always be used.
The cables from group 0 to group 1 must always be the
same length as the cables from the last group back to
group 0.
The distance between the lengths of each fiber ring from
group 0 to any other group must not exceed 50'. Rings
are directional. Ring 0 is ascending and ring 1 is
descending.
Note: When adding an additional network group, fiber
cables must be changed to adhere to the rules above.
When configuring NTND14 cables, observe the
following rules:
• The shortest NTND14 Cable should always be
• A network group requires 4 NTND14 cables, 2 to
• A check should be made on the existing NTND14
Note: The NTND14 BX 50' cables are manufacture
discontinued.
IMPORTANT!
IMPORTANT!
used.
each half group. Both cables to each half group
must be the same length.
cables. Replace any cables that do not meet the
above requirement.