Juniper SRX 5800, Hardware Manual

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SRX5800 Services Gateway Interface Card Description
Interface cards are cards that support physical interfaces that you use to connect the services gateway to
your data network. Three different types of interface cards are available:
•
I/O Cards (IOCs) have fixed interface ports on the front panel of the card.
•
Flex I/O Cards (Flex IOCs) have slots on the front panel that accept smaller cards called port modules.
Each port module has two or more physical interfaces on it. A Flex IOC with installed port modules
functions in the same way as a regular IOC, but allows greater flexibility in adding different types of
Ethernet ports to your services gateway.
•
Modular Port Concentrators (MPCs) have slots on the front panel that accept smaller cards called Modular
Interface Cards (MICs). Each MIC has one or more physical interface on it. An MPC with MICs installed
functions in the same way as a regular I/O card (IOC), but allows greater flexibility in adding different
types of Ethernet ports to your services gateway. MPCs and MICs are similar in form and function to
Flex IOCs and port modules. However, the two use different form-factors, so you cannot install port
modules in an MPC, nor can you install MICs in a Flex IOC.
For all interface card types, the card assembly combines packet forwarding and Ethernet interfaces on a
single board. The interface cards interface with the power supplies and Switch Control Boards (SCBs).
You can install interface cards in any of the slots that are not reserved for SCBs. If a slot is not occupied
by a card, you must install a blank panel to shield the empty slot and to allow cooling air to circulate properly
through the services gateway.
Figure 67 on page 148 shows typical IOCs supported on the services gateway.
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