
62 Chapter 2 Safety considerations and best practices
241-1501-240 5.2S2
software migration for PVG services requires all the cards involved in a
call (OC-3 STM-1 TDM FP, VSP FP, and ATM FP) to support this
feature, including the mechanisms for synchronizing the call states
between cards across the fabric interface. HSM and HEP as defined here
apply to PVG services supported by cards in the same shelf.
•
A VSP3 card can spare up to nn cards in the same Passport 15000 or
20000 shelf, where nn is 14 FP slots minus however many TDM cards
share the shelf, and the far-end supports sparing that many VSP3s. At
least one TDM card is required to operate with the VSP3s to enable PVG.
The number of TDM cards varies according to the capacities you choose.
Consider how to group the VSP3s in paired slots. For more information
on the sparing setup of VSP3 cards, see 241-1501-200 Passport 15000,
20000 Hardware Description.
•
Keep all fiber optical (OC-n or STM-n) and electrical (DSn or En) FPs
grouped together (for example, all OC-3/STM-1s grouped beside all
OC-12c/STM-4s and separate from DS3s).
•
Add DS3 or E3s starting at the right side of a cage so that coax cables are
routed to the right side of the frame, that is, to the side that is opposite the
input power cables. If the power cables are fastened to the side of the
frame from the floor up to the BIP, and coax cables are fastened to the
cable management brackets next to the power cables, the EMI from the
power cables will interfere with signals on the coax cables.
Note: The power input cables do not interfere with the signals on fiber
cables.
•
Since fiber cables are to be routed to the left side of the switch and since
the optional extended cable management brackets accommodate up to 7
FPs, reserve slot 8 for the OC-n or STM-n card from the network; the
extended brackets are intended mostly for the density of mini-coax
cables from DS3s or E3s and it is assumed that a switch will have at least
one OC-n or STM-n card when provisioning with DS3s or E3s.
•
Add OC-n or STM-n cards starting at the left side of a cage, keeping
similar cards grouped together (for example, OC-48/STM-16s and
OC-12/STM-4s are in separate groups).
Summary of Contents for Passport 15000
Page 1: ...Passport 15000 20000 Hardware Installation Maintenance and Upgrade 241 1501 240 ...
Page 2: ......
Page 4: ......
Page 6: ...6 Publication history 241 1501 240 5 2S2 ...
Page 32: ...32 Contents 241 1501 240 5 2S2 ...
Page 48: ...48 About this document 241 1501 240 5 2S2 ...
Page 52: ...52 Chapter 1 Overview of hardware tasks 241 1501 240 5 2S2 ...
Page 70: ...70 Chapter 2 Safety considerations and best practices 241 1501 240 5 2S2 ...
Page 84: ...84 Chapter 4 Alarm BITS module 241 1501 240 5 2S2 ...
Page 94: ...94 Chapter 5 CP and FP cables 241 1501 240 5 2S2 ...
Page 178: ...178 Chapter 11 Initial switch hardware installations 241 1501 240 5 2S2 ...
Page 182: ...182 Chapter 12 MAC address module 241 1501 240 5 2S2 ...
Page 216: ...216 Chapter 14 Power and ground hardware of a Passport 15000 or 20000 241 1501 240 5 2S2 ...
Page 872: ...872 Chapter 17 Hardware procedures 241 1501 240 5 2S2 ...
Page 873: ......