20km 2.5G GEPON ONU

1.SFP Package with SC or Pigtail 2.Single +3.3 V Power Supply

  SFP ONU GPON

Features

 

SFP Package with SC or Pigtail

 

  Single +3.3 V Power Supply

  1.25 Gbps / 1310 nm Burst-Mode

 

Transmitter

    1.25 Gbps / 1490 nm Continuous-Mode

 

Receiver with 2R Output

 

   Distance up to 20km

  Class 1 Laser International Safety Standard

 

IEC-60825 Compliant

   Operating Case Temperature Standard: 0°C ~+70°C Industrial:-40°C ~+85°C  Compliant with IEEE 802.3ah

  RoHS Compliant

Product Description

The OST-ONU-SFPXX    is  a  transceiver  for  the  optical  network  unit  (ONU)  of  GE-PON

 

with  1.25Gbps  in  downstream  and  1.25Gbps  in  upstream.  OST-ONU-SFPXX  is  high performance   module   for  single   fiber  communications   by  using   1310 

The transmitter section uses a multiple quantum well 1310 nm laser and is a class 1 laser

 

compliant according to International Safety Standard IEC-60825. The receiver section uses

an  integrated  1490  nm  detector  preamplifier  (IDP)  mounted  in  an  optical  header  and  a limiting post-amplifier IC.

Notes:

 

1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K –10K

 

Ω  resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V.

 

When high, output indicates a laser fault of some kind. Low indicates normal operation.

 

In the low state, the output will be pulled to < 0.8V.

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 - 10 KΩresistor. Its states are: Low (0 – 0.8V): Transmitter on

(>0.8 < 2.0V): Undefined

 

High (2.0 – 3.465V): Transmitter Disabled

 

Open: Transmitter Disabled

Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a

 

4.7K –  10KΩresistor on the host board. The pull-up voltage shall be VccT or VccR (see Section IV for further  details). 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-

       LOS  (Loss  of  Signal)  is  an  open collector/drain  output, which  should  be  pulled  up

 

with a 4.7K – 10KΩresistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this  output   indicates   the   received   optical  power   is   below  the   worst-case  receiver sensitivity (as defined by the standard in use). Low indicates norma 

20km 2.5G GEPON ONU