Gigabit Ethernet

• 16 ports built into the chassis front panel
• Labeled as port ge–0/0/0 to ge–0/0/15
• Provide link speeds of 10/100/1000 Mbps
• Operate in full-duplex and half-duplex modes

Note: On the PoE and Voice models of the SRX240 Services Gateway, all 16 Gigabit Ethernet ports support PoE.

Function as front-end network ports and provide LAN and WAN connectivity to hubs, switches, local servers, and workstations.

Universal Serial Bus (USB)

• Two ports built into the chassis front panel
• Labeled usb 0 and usb 1
• Function in the following modes:
  • Full speed
  • High speed
• Compliant with USB revision 2.0

• Support a USB storage device that functions as a secondary boot device in case of internal flash failure on startup.

  Note: To use USB to boot your services gateway, 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 installed.

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

  Contact a customer service representative for more information.

Console

• One port built into the chassis front panel

• Uses an RJ-45 serial cable connector
• Supports the RS-232 (EIA-232) standard

• Functions as a management port to log into a device directly.
• Provides the interface to configure the device using the CLI.

Foreign Exchange Subscriber (FXS) interface

• Two ports built into the chassis back panel
• Use an RJ-11 connector

• Provide an interface to connect analog phones, fax machines, or similar devices.
• Supply battery power, ringing voltage, dial tone, and so on to the station.

Note: There is a hardware relay between the built-in FXO1 interface and the FXS2 interface. The relay automatically connects the FXS2 port and the FXO1 port in the event of a power failure.

Foreign Exchange Office (FXO) interface

• Two ports built into the chassis back panel
• Use an RJ-11 connector

Provide direct connection to the telephone exchange or Public Switched Telephone Networks (PSTN) central office.

Mini-PIM slots

• Four slots built into the chassis front panel
• Mini-PIMs can be plugged directly into the slots

Provide LAN and WAN functionality along with connectivity to various media types.

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

Note: We strongly recommend that only transceivers provided by Juniper Networks be used on an SRX240 Services Gateway. We cannot guarantee that the interface module will operate correctly if third-party transceivers are used. Please contact Juniper Networks for the correct transceiver part number for your device.