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Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
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Chapter 2 Introduction to the Cisco SCE8000 Platform
Introduction to SIPs and SPAs
Specifying the SIP Subslot Location for a SPA
Cisco SCE8000-SIP subslots begin their numbering with “0” and have a horizontal orientation.
Figure 2-3 shows the subslot numbering for the Cisco SCE8000-SIP.
The Cisco SCE8000-SIP supports four subslots for the installation of SPAs, as follows:
• SIP subslot 0—Top–left subslot
• SIP subslot 1—Top–right subslot
• SIP subslot 2—Bottom–left subslot
• SIP subslot 3—Bottom–right subslot
Figure 2-3 SPA Module Subslot Location
Shared Port Adapters
The SPA supported by the Cisco SCE8000-SIP is the 1-Port 10-Gigabit Ethernet SPA,
SPA-1X10GE-L-V2
The following list describes some of the general characteristics of a SPA:
• A SPA is a modular type of port adapter that inserts into a subslot of a compatible SIP carrier card
to provide network connectivity and increased interface port density. The Cisco SCE8000-SIP can
hold up to four SPAs.
Since the interfaces are connected in subscriber/network pairs, either two or four SPAs must be
installed.
• The supported SPA is a single-height SPAs, which inserts into one SIP subslot. (See Figure 2-4.)
Figure 2-4 Single-Height SPA Size
• Each SPA provides a one 10GBE port, which is the interface to either subscriber or network traffic.
These interfaces can be individually configured using the Cisco command-line interface (CLI).
• Either a blank filler plate or a functional SPA should reside in every subslot of an SIP during normal
operation to maintain cooling integrity. Blank filler plates are available in single-height form only.
Since the interfaces are connected in subscriber/network pairs, the SCE8000-SIP must be either
fully populated or have both the bottom bays covered with blank filler plates.
Sub-slot 0
Front of SCE8000-SIP
270900
Sub-slot 1
Sub-slot 2 Sub-slot 3
Single-height SPA
Front of the SCE8000-SIP
242234
Single-height SPA
Single-height SPA Single-height SPA