5 Cards
Item
Specification
Port rate
u Uplink: 1.244 Gbit/s
u Downlink: 2.488 Gbit/s
Maximum split ratio
1:128
Maximum number of T-CONTs per PON port
1024
Maximum number of MAC addresses 32768
Maximum differential fiber distance (maximum
difference in ONU-to-PON port distance
between two ONUs under the same PON
port)
40 km
Supported ONU types 2.5G / 1.25G (downlink rate / uplink rate)
Maximum number of ONUs under each PON
port
128
Bandwidth allocation granularity of DBA
64 kbit/s
Minimum bandwidth of each T-CONT 1024 kbit/s
Number of GEM ports supported by each card
16384
Switching mode
Store-and-forward
Network standards
IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE
802.3z, IEEE 802.1d, IEEE 802.1p, IEEE 802.
1q, etc.
Modules
Module Type
Module Code
GPON optical module
2.5/1.25G-20km-GPON OLT-SFP (CLASS C+)
2.5/1.25G-20km-GPON OLT-SFP (CLASS C++)
Note 1: GPON Optical Module describes the module specifications.
Functions
Classification Functions
Interface
GPON service ports
Access
Triple Play, including data, voice and IPTV
Multicast
IGMP Proxy / Snooping multicast and controllable multicast
QoS
Real-time DBA
Selective QoS and SLA
Service rate control
HQoS
Queue shaping based on ONUs or queues
Version: B
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