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The TXMC885 is a Switched Mezzanine Card (XMC) compatible module providing a four channel Ethernet 10BASE-T / 100BASE-TX / 1000BASE-T interface.
A PCI Express Switch provides access to the Intel 82574IT Gigabit Ethernet controllers. Each Ethernet interface supports 10, 100 and 1000 Mbit/s transmission rates for full duplex operation. 10 and 100 Mbit/s transmissions for half duplex operation, and is equipped with a 32 Kbit serial EEPROM.
The four Ethernet interfaces of the TXMC885 are capable of performing an auto negotiation algorithm which allows both link-partners to find out the best link-parameters by themselves. The TXMC885 is widely user configurable via configuration and status register access over the PCI Express interface.
The TXMC885-10R provides four 10/100/1000 Mbit/s Ethernet connections via front panel RJ45 connectors.
All ports are galvanically isolated from the Ethernet controllers and LEDs on the board indicate the different network activities.

Features

• Mechanical Interface: Switched Mezzanine Card (XMC) Interface confirming to ANSI/VITA 42.0-2008 (Auxiliary Standard)
  Standard single-width (149mm x 74mm)
• Electrical Interface: PCI Express (Base Specification 1.1) compliant interface conforming to ANSI/VITA 42.3-2006 (XMC PCI Express Protocol Layer Standard)
• PCIe Switch: 89HPES8T5A (IDT)
• Gigabit Ethernet Controller: For each interface: 82574IT (Intel)
• IPMI resource FRU Data EEPROM: M24C02 (STMicroelectronics)
• Number of Channels: 4
• Link: 10Base-T / 100Base-TX / 1000Base-T
• FIFO: For each interface: Configurable receive and transmit data FIFO, programmable in 1 KB increments
 
• Interrupts: PCIe Switch is able to generate
  - INTx (x= A, B, C, or D) legacy interrupts
  - Message Signaled Interrupts (MSIs)
• I/O Connector: RJ45 jacks (Tyco 406732-2 or compatible)
• Ambient Air Cooling: Constant airflow of 2 m/s required
• Power Requirements: 300mA typical @ VPWR = +12V DC (no link)
  app. additional 3mA per 100 Mbit/s link
  app. additional 100mA per 1 Gbit/s link
  750mA typical @ VPWR = +5V DC (no link)
  app. additional 7mA per 100 Mbit/s link
  app. additional 250mA per 1 Gbit/s link
• Temperature Range: Operating: -40°C to +85°C
  Storage: -40°C to +85°C
• MTBF: 483000 h
• Humidity: 5 - 95% non-condensing
• Weight: 79 g