Juniper SRX5800 Hardware Manual page 105

Figure 43 on page 106). All traffic traversing the services 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 43 on page 106 shows a typical SPC supported on the services gateway.
Figure 43: 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
about connecting and configuring redundant chassis clusters.
CAUTION:
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.
Chassis Cluster User Guide for SRX Series Devices
If you face a problem running a Juniper Networks device that uses a
for more information
106