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Flex I/O Card (SRX5K-FPC-IOC) Specifications

The SRX5K-FPC-IOC Flex I/O card (Flex IOC) (Figure 23) is an IOC with two slots that accept port modules that add Ethernet ports to your services gateway. 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.

Each Flex IOC has a processor subsystem, which includes a 1.2-GHz CPU, a system controller, 1 GB SDRAM, and two Packet Forwarding Engines with a maximum throughput of 10 Gbps each.

You must install at least one IOC in the services gateway. The IOC can be of any of the available IOC or Flex IOC types.

You can install Flex IOCs 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 services gateway.

Figure 23: Flex IOC with Typical Port Modules

Flex IOC with Typical Port Modules


  • Flex IOC with slots for two port modules
  • Maximum throughput: 10 Gbps (per PFE)

Software release

  • Junos OS Release 9.5R1 and later

Cables and connectors

Slots for two port modules



Supported Slots

  • SRX5600–Any slot except bottom slots 0 or 1
  • SRX5800–Any slot except center slots 0, 1, or 2/6

Power Requirement

312 W typical, 365 W maximum (includes port modules)


Approximately 10 lb (4.5 kg)


OK/FAIL LED, one bicolor:

  • Steady green–The Flex IOC is operating normally.
  • Red–The Flex IOC has failed and is not operating normally.
  • Off–The Flex IOC is powered down.

Serial Number Location

The serial number label is located as shown in Figure 24.

Figure 24: Serial Number Label (IOC Shown, Other Cards Similar)

Serial Number Label (IOC Shown,
Other Cards Similar)

Related Documentation

Modified: 2017-04-20