Huawei MA5800 series OLT support combo PON boards, such as CGHF XGPON & GPON combo, CSHF XGSPON & GPON combo board, with 8-port or 16-port. Then are there any difference, and what functions are supported not not supported, below list is the Comparison of Huawei PON Combo board.
Board Specifications | CGID | CGHF | CSHF | CGHD | CSHD |
Port quantity | 8 | 16 | 16 | 8 | 8 |
Encapsulation Type | XFP | SFP+ | SFP+ | SFP+ | SFP+ |
Forwarding capability | 80 Gbit/s | 200 Gbit/s | 200 Gbit/s | 100 Gbit/s | 100 Gbit/s |
Rate mode | Asymmetric | Asymmetric | Supports two modes: Asymmetric Symmetric |
Asymmetric | Supports two modes: Asymmetric Symmetric |
Port rates | GPON upstream: 1.244 Gbit/s GPON downstream: 2.488 Gbit/s XG-PON upstream: 2.488 Gbit/s XG-PON downstream: 9.953 Gbit/s |
GPON upstream: 1.244 Gbit/s GPON downstream: 2.488 Gbit/s XG-PON upstream: 2.488 Gbit/s XG-PON downstream: 9.953 Gbit/s |
GPON upstream: 1.244 Gbit/s GPON downstream: 2.488 Gbit/s XG-PON upstream: 2.488 Gbit/s XG-PON downstream: 9.953 Gbit/s XGS-PON upstream: 9.953 Gbit/s XGS-PON downstream: 9.953 Gbit/s |
GPON upstream: 1.244 Gbit/s GPON downstream: 2.488 Gbit/s XG-PON upstream: 2.488 Gbit/s XG-PON downstream: 9.953 Gbit/s |
GPON upstream: 1.244 Gbit/s GPON downstream: 2.488 Gbit/s XG-PON upstream: 2.488 Gbit/s XG-PON downstream: 9.953 Gbit/s XGS-PON upstream: 9.953 Gbit/s XGS-PON downstream: 9.953 Gbit/s |
Maximum split ratio | GPON: 1:128 XG-PON: 1:256 |
GPON: 1:128 XG-PON: 1:256 |
GPON: 1:128 XG(S)-PON: 1:256 |
GPON: 1:128 XG-PON: 1:256 |
GPON: 1:128 XG(S)-PON: 1:256 |
T-CONTs per PON port | GPON/auto type ONU: 1024 XG-PON: 2048 |
GPON/auto type ONU: 1024 XG-PON: 2048 |
GPON/auto type ONU: 1024 XG(S)-PON: 2048 |
GPON/auto type ONU: 1024 XG-PON: 2048 |
GPON/auto type ONU: 1024 XG(S)-PON: 2048 |
Service flows per PON board |
16368 | 16352 | 16352 | 16368 | 16368 |
Maximum number of MAC addresses | 131072 | 131072 | 131072 | 131072 | 131072 |
Maximum distance difference between two ONUs under the same PON port(board capability) | 40 km | 40 km | 40 km | 40 km | 40 km |
Supported ONU rates | GPON: 2.5G/1.25G (downstream rate/upstream rate) XG-PON: 10G/2.5G (downstream rate/upstream rate) |
GPON: 2.5G/1.25G (downstream rate/upstream rate) XG-PON: 10G/2.5G (downstream rate/upstream rate) |
GPON: 2.5G/1.25G (downstream rate/upstream rate) XG-PON: 10G/2.5G (downstream rate/upstream rate) XGS-PON: 10G/10G (downstream rate/upstream rate) |
GPON: 2.5G/1.25G (downstream rate/upstream rate) XG-PON: 10G/2.5G (downstream rate/upstream rate) |
GPON: 2.5G/1.25G (downstream rate/upstream rate) XG-PON: 10G/2.5G (downstream rate/upstream rate) XGS-PON: 10G/10G (downstream rate/upstream rate) |
FEC | Bidirection | Bidirection | Bidirection | Bidirection | Bidirection |
CAR group | Yes | Yes | Yes | Yes | Yes |
HQoS | Yes | Yes | Yes | Yes | Yes |
PON ISSU | Yes | Yes | Yes | Yes | Yes |
Variable-length OMCI | Yes | Yes | Yes | Yes | Yes |
ONU-based shaping or queue-based shaping | Yes | Yes | Yes | Yes | Yes |
Type B protection (single-homing) | Yes | Yes | Yes | Yes | Yes |
Type B protection (dual-homing) | Yes | Yes | Yes | Yes | Yes |
Type C protection (single-homing) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) |
Type C protection (dual-homing) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) | Yes (applicable to GPON channels) |
1588v2 | Yes | Yes | Yes | Yes | Yes |
9216-byte jumbo frames | Yes | Yes | Yes | Yes | Yes |
Rogue ONT detection and isolation | Yes | Yes | Yes | Yes | Yes |
Automatic shutdown at high temperature | Yes | Yes | Yes | Yes | Yes |
Energy conservation for service boards | Yes | Yes | Yes | Yes | Yes |
D-CCAP | No | No | No | No | No |
In summary:
1, XGPON&GPON combo board CGHF is the mainstream in Chinese market, because XGPON is more and more popular, but XGSPON still not largely commercial deployed here.
2, Some European countries such as Spain internet service provider already configure XGSPON in their network, but downstream still XGPON ONT connected.
3, CGID, CGHF, CSHF, CGHD and CSHD supported functions are same, and all these 4 boards don’t support D-CCAP.