It integrates strongpoint of PON and Ethernet, low cost, high broadband, strong expansibility, flexible and fast service...

EPON ONU

1 Name: EPON ONU SFP

2  CNCR-IT—the superiority of EPON

a. Satisfy EPON standard

b. The professional network design, such as power supply 60V, waterproof shell in the broadcasting&TV field.

c. High density, high card 1U supports eight PON to save the space of the machine room.

d. Support the distant hardware ONU to upgrade

e. Support four PON to combine randomly, and the protection function for the main fiber

f. PON can be set as GE port, and uses standard Ethernet optical module, namely EPON OLT can offer Ethernet access function.

3 Functions

a. Ethernet performance

b. L2 interchanging ability

c. VLAN

d. Broadband allocation and QoS

e. Interconnection capacity of PON: the same PON port, voice and data message are exchanged among ONU.

f. Multicast as well as the controllable multicast

g. ACL

4 The Performance of Ethernet

a. Handling capacity: satisfy performance requirements of China telecom, which is above 900Mbps under multiple ONU(32 ONU) environment.

b. Frame loss rate: satisfy performance requirements of China telecom

c. orward delay: satisfy performance requirements of China telecom

d. Performance test of back-to- back frame: satisfy performance requirements of China telecom

5   Bandwidth allocation and QoS function--ONU

1) Speed-limited granularity and precision at ONU port: provides upstream speed-limited function(within 128Mbps).

2) ONU business flow classification: supports 802.1p and IP four-layer port number

3) ONU encrypting: ONU supports automatic adaptive CTC churning and AES

4) ONU FEC: support

5) ONU flow control: support flow control at UNI port

6) ONU queue function: supports eight queues, supports three kinds of scheduler modes of queue, such as SP，WRR and SP+WRR, supports queue map

7) ONU marking function: supports marks of default VLAN and priority; supports 802.1p or DSCP priority remark

6 Application

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