Avaya (109352-E, Manual de usuario Pagina 98

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Installing and Maintaining BN Platforms
5-2 109352-E Rev. A
Depending on your model, you will need a Phillips screwdriver, a standard
screwdriver, or both to replace hardware components.
Replacing Flash and PCMCIA SRAM Memory Cards
This section describes how to remove and replace a Flash memory card or a
PCMCIA SRAM memory card (Order No. 75049 or 77014). Each BN must be
equipped with a minimum of one 4-MB Flash memory card or one PCMCIA
SRAM memory card. Each BN supports a maximum configuration of one Flash
card or PCMCIA SRAM card per FRE module. You install additional PCMCIA
SRAM cards to provide redundancy, add storage capacity, and/or collect Frame
Relay Switch and SMDS Switch billing data.
When you remove a Flash card or PCMCIA SRAM card, the non-volatile file
system (NVFS) disables access to the card. When you insert and format a Flash
card or PCMCIA SRAM card or insert a formatted Flash card or PCMCIA SRAM
card, the NVFS automatically provides access to the card.
SRM-F Modules Y Y Y
Power Supplies N Y Y
Fans N Y N
Note: Frame Relay Switch and SMDS Switch billing data must be collected
on a dedicated PCMCIA SRAM memory card. Consequently, simultaneous
support for both Frame Relay Switch and SMDS Switch billing requires a
minimum of two SRAMs: one for Frame Relay billing and a second for
SMDS billing. The software image, other executable files, and configuration
files are stored on the Flash memory card.
Table 5-1. User-Serviceable Components
(continued)
Component
BLN
(Backbone
Link Node)
BLN-2
(Backbone
Link Node-2)
BCN
(Backbone
Concentrator Node)
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