Introduction

The D-Link DGS-712 1000BASE-T Copper Small Form Pluggable (SFP) transceiver is based on the SFP Multi Source Agreement (MSA). It is compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3z and IEEE Std 802.3ab. The 1000BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features. The DGS-712 1000BASE-T copper SFP transceiver plugs into an SFP slot provided for on a D-Link Gigabit switch or optional switch module. It provides Gigabit transmission on the common Category 5 twisted-pair network cable.

Features

• Up to 1.25Gb/s bi-directional data links
• Hot-pluggable SFP footprint
• Extended case temperature range
• Fully metallic enclosure for low EMI
• Low power dissipation (typical 1.2 watts)
• RJ-45 connector assembly
• Access to physical layer IC via 2-wire serial bus
• 10/100/1000 BASE-T operation in host systems with SGMII interface
• Gigabit Ethernet over Cat. 5 cable
• +3.3V electrical power interface

Specifications

Standard

• IEEE 802.3ab 1000BASE-T Gigabit Ethernet

Transceiver Type

• SFP (Small Form Pluggable)

Connector

• RJ-45

Auto MDI/MDIX

• Automatic crossover detection enabled
• External crossover cable not required

Data Rate

• 1,000 Mbps (IEEE 802.3 compatible)
• 10/100/1000 BASE-T operation requires the host system to have an SGMII interface with no clocks. With a SERDES interface, this transceiver will operate at 1000BASE-T only.

Cable Type

• Cat. 5 twisted-pair cable

Maximum Cable Distance Coverage

• 100 meters

Supply Current

• 350mA (typical)
• 400mA (maximum)
• 1.3W max power over full range of voltage and temperature *

* Caution: power consumption and surge current are higher than the specified values in the SFP MSA

Input Voltage

• 3.1V (minimum)
• 3.3V (typical)
• 3.5V (maximum)
• Referenced to GND

Maximum Voltage

• 4V

Surge Current

• 30mA
• Hot plug above steady state current *

* Caution: power consumption and surge current are higher than the specified values in the SFP MSA

Operating Temperature

• 0⁰ to 85⁰ C

Storage Temperature

• -40⁰ to 85⁰ C