100M Copper SFP Transceiver SPT-PE-T4

Features

• Hot-pluggable SFP footprint
• Extended case temperature range (0°C to +70°C )
• Fully metallic enclosure for low EMI
• Compact RJ-45 connector assembly
• It supports RX_LOS(Loss of Signal) function
• Compatible with IEEE802.3u
• Access to physical layer IC via 2-wire serial bus
• A 10/100BASE-TX/ 100BASE-FX converter

Applications

• This 100Base-TX Copper SFP Transceiver supports the SFP based switch100Base-FX ports that accept standard 100Base-FX optics SFP.

Description

SPT-PE-T4 Copper Small Form Pluggable (SFP) transceiver module is specifically designed for converting 100Base-FX NRZI port interface to 10/100Base-TX interface with RJ45 connector. The transceiver module is compliant with the SFP MultiSource Agreement (MSA) and IEEE802.3u. With the hot plug ability, the module offers a flexible and easy way to be installed into SFP MSA compliant ports at any time without the interruption of the host equipments operating online.

The Copper SFP transceivers use an integrated RJ-45 connector with transformer and PHY IC.

Pin Definitions

Pin Diagram

Pin Descriptions

Notes:

Plug Seq.: Pin engagement sequence during hot plugging.

1) TX Fault is not supported and is always connected to ground.

2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 ¨C 10 K resistor. Its states are:

Low (0 to 0.8V): Transmitter on

(>0.8, < 2.0V): Undefined

High (2.0 to 3.465V): Transmitter Disabled

Open: Transmitter Disabled

3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K to 10K resistor on the host board. The pull-up voltage shall be VccT or VccR

Mod-Def 0 is grounded by the module to indicate that the module is present

Mod-Def 1 is the clock line of two wire serial interface for serial ID

Mod-Def 2 is the data line of two wire serial interface for serial ID

4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.

5) RD-/+: These are the differential receiver outputs. They are AC-coupled, differential lines with 100 differential termination inside the module.

6) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 differential termination inside the module.

+3.3V Volt Electrical Power Interface

The SPT-PE-T4 has an input voltage range of +3.3V +/- 5%. The 3.3V maximum voltage is not allowed for continuous operation.

Table 1. +3.3V Volt electrical power interface

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

Low-Speed Signals

MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals (see section VII, “Serial Communication Protocol”). Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc.

Table 2. Low-speed signals, electronic characteristics

High-Speed Electrical Interface

All high-speed signals are AC-coupled internally.

Table 3. High-speed electrical interface, transmission line-SFP

High-speed electrical interface, host-SFP

Table 4. High-speed electrical interface, host-SFP

General Specifications

Table 5. General specifications

Notes:

1. Clock tolerance is +/- 50 ppm

2. By default, the GE-FB-PXRC is a full duplex device in preferred master mode

3. Automatic crossover detection is enabled. External crossover cable is not required

Environmental Specifications

Table 6. Environmental specifications

Mechanical Specifications

The host-side of the GE-FB-PXRC conforms to the mechanical specifications outlined in the SFP MSA1. The front portion of the SFP (part extending beyond the face plate of the host) is larger to accommodate the RJ-45 connector.

Figure 2. SPT-PE-T4 mechanical dimensions

Ordering information

E-mail: sales@sopto.com

Web : http://www.sopto.com