Figure 19: Services Processing Card Srx5K-Spc-2-10-40 - Juniper SRX5800 Hardware Manual

Copyright © 2015, Juniper Networks, Inc.
gateway is passed to an SPU to have services processing applied to it. Traffic is
intelligently distributed by I/O cards (IOCs) to SPUs for services processing.
The services gateway must have at least one SPC installed. You can install additional
SPCs to increase services processing capacity.
You can install SPCs in any of the slots that are not reserved for Switch Control Boards
(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 device.
Figure 19 on page 37 shows a typical SPC supported on the services gateway.

Figure 19: Services Processing Card SRX5K-SPC-2-10-40

Each SPC consists of the following components:
SPC cover, which functions as a ground plane and a stiffener.
Two small form-factor pluggable (SFP) chassis cluster control ports for connecting
multiple devices into a redundant chassis cluster. See Junos OS Security Configuration
Guide for more information about connecting and configuring redundant chassis
clusters.
CAUTION: If you are having a problem running a Juniper Networks device
that is using a third-party optic or cable, the Juniper Networks Technical
Assistance Center (JTAC) can help you diagnose the source of the problem.
Your JTAC engineer might recommend that you check the third-party optic
or cable and potentially replace it with an equivalent Juniper Networks
optic or cable that is qualified for the device.
Fabric interfaces.
Chapter 4: Line Card and Module Description
37