What's New In This Document - Nortel Passport 15000 Hardware Description

28 About this document

What's new in this document

241-1501-200 5.2S2
Only information specific to the Passport 15000 or 20000 hardware is
contained in this guide.
WARNING
Risk of radio interference
Passport 15000 is a class A product. In a domestic
environment this product may cause radio interference, in
which case the user may be required to take adequate
measures.
The following features were added to this document:
• "Structural changes" (page 31)
• "16-port OC-3/STM-1 POS and ATM FP with PEC NTHW44"
(page 33)
• "An additional version of the lower and upper cooling units" (page 33)
• "Enclosing a NEBS 2000 frame with doors and side panels" (page 34)
• "Voice services processor 3 with optical TDM interface
(2pOC3ChSmIrVsp3)" (page 34)
• "Y-protection for dual 16-port OC-3/STM-1 POS and ATM FPs"
(page 34)
Other changes made to this document include the following:
• changed the requirements for matching BIMs to a BIP version in
"Combined BIM pairs in a BIP" (page 60)
• added the direction of airflow in a shelf-based Passport 15000 or 20000
in "Environmental control equipment" (page 129)
• in "Air filters" (page 133) re-emphasized that they must be replaced and
included a reference to the NTP that indicates when and how to replace
them