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286 Chapter 37 Hardware procedures
241-7401-240 5.2S1
Installing multiple MSA32 sparing panels (DB15 or BNC)
Install multiple MSA32 sparing panels for a 1-for-N sparing configuration.
Prerequisites
• The one-for-n (1:n) configurations of 32-port multi-service access
(MSA32) sparing panels require one panel for each FP you want to spare.
For example, a 1:4 configuration requires four sparing panels installed on
the same face of a mounting apparatus, and connected in series through
inter-panel flexi-cables. This modular design of MSA32 sparing panels
means any one of the sparing panels in a series can be replaced without
disrupting traffic on the FPs attached to the other panels in the sparing
configuration.
• An MSA32 flexi-cable is an inter-panel connection cable that is
equivalent to a flexible printed circuit board (PCB). See the figure “Inter-
panel flexi-cable for MSA32 sparing panels with BNC or DB15
connectors” (page 287)
• The product code for the DB15 or BNC interpanel flexi-cable is
NTY199.
• The installation of one or more MSA32 sparing panels in a series means
installing the panels first, then cabling the FPs and the network
equipment to the sparing panels. Ensure that you have installed all of the
FPs necessary for your sparing configuration. If you need to install
additional FPs, see the section “Installing a function processor”
(page 237).
• Power is supplied to an MSA32 sparing panel from its FP through the
connections labelled P3 at both ends, and only through this connection.
For the sparing panel to operate, the connectors at P3 must be cabled.
Procedure steps
1 Install all of the termination panels for 1:N configuration as described in
the procedure “Installing a 19” rack-mounted termination panel”
(page 205).
2 Secure a cable management bracket to each side of the sparing panel
with four of the screws provided.
Note: The cable management brackets allow you to neatly route cables
from the front of the sparing panel to the rear of the switch.