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SRX220 Services Gateway Built-In Interfaces


Table 1 lists and describes the interface ports supported on the SRX220 Services Gateway.

Table 1: SRX220 Services Gateway Built-In Hardware Interfaces

Interface Type



Gigabit Ethernet

Eight ports that:

  • Are labeled 0/0 through 0/7 on the front panel.

  • Use RJ-45 connectors.

  • Provide link speeds of 10/100/1000 Mbps.

  • Operate in full-duplex and half-duplex modes.

  • Support flow control.

  • Support autonegotiation and autosensing.

All Gigabit Ethernet ports support Power over Ethernet on the PoE model of the SRX220 Services Gateway.

The Gigabit Ethernet ports can be used as follows:

  • To function as front-end network ports.

  • To provide LAN and WAN connectivity to hubs, switches, local servers, and workstations.

  • To forward incoming data packets to the device.

  • To receive outgoing data packets from the device.

  • To connect power devices to receive network connectivity and electric power (PoE functionality) (for the PoE model of the SRX220 Services Gateway).

Universal Serial Bus (USB)

Two ports that:

  • Function in full speed and high speed.

  • Comply with USB revision 2.0.

The USB ports can be used as follows:

  • To support a USB storage device that functions as a secondary boot device in case of CompactFlash failure on startup (if the USB storage device is installed and configured).

    Note: You must install and configure the USB storage device on the USB port to use it as a secondary boot device. Additionally, the USB device must have Junos OS installed.

  • To provide the USB interfaces that are used to communicate with many types of USB storage devices supported by Juniper Networks.

Contact your Juniper Networks customer service representative for more information.


One port that:

  • Uses an RJ-45 serial cable connector.

  • Supports the RS-232 (EIA-232) standard.

The console port can be used as follows:

  • To provide the console interface.

  • To function as a management port to log into a device directly.

  • To configure the device using the command-line interface (CLI).

Mini-Physical Interface Module (Mini-PIM)

Two slots for Mini-PIMs.

The Mini-PIM slots can be used to provide LAN and WAN functionality along with connectivity to various media types.

For more information about the supported Mini-PIMs, see the SRX Series Services Gateways for the Branch Physical Interface Modules Hardware Guide  .


If you face a problem running a Juniper Networks device that uses 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.