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Expansion Module of RG-DEMUX Series 24-Port Core Combiner

Used in Simplified Optical Ethernet solution to make distribution nodes passive and provide exclusive Gigabit/10G bandwidth for Fiber-to-The-Room (FTTR)

Highlight Features
  • The expansion module of the 24-port core combiner uses three WDM fibers for transmission, which effectively reduces trunk optical fibers required in buildings.
  • The unique colored optical technology is used to provide exclusive Gigabit/10G bandwidth for indoor use, which meets network requirements.
  • The all-optical network involves only passive devices, exempting ELV rooms from O&M management and making distribution nodes passive completely.
  • The modular expansion module is easy to fix and install.
Sales Enquiry

RG-DEMUX/MUX Series 24-Port Combiner/Transparent Distribution Device

They are applied to enterprise-class all-optical network scenarios. The products innovatively combine the colored optical technology with passive devices using the Ethernet architecture to physically isolate channels of the device. They can be used together with Simplified Optical Ethernet solution 2.X to make distribution nodes passive completely and achieve 1G/10G bandwidth to the room.


Installation Modes

Various installation modes: The product with a height of 1 RU can be installed in a core-side 78C chassis, in a core-side 19 RU rack, or on a wall.

The Ethernet architecture is transformed from three tiers to two tiers, and the building ELV rooms are truly passive and exempt from O&M management

The RG-DEMUX/MUX series combiner/transparent distribution device use the passive network design, replacing distribution switches. The devices from the core side to the access side are directly connected in a point-to-point manner. The controller displays the topology of the entire network, including port usage. This allows you to respond to link failures in a timely manner.

Solution Advantages

Topology Comparison


For example, an office building has 6 floors, with 2 ELV risers and 20 rooms on each floor, and 4 information points in each room.

Exclusive 1G/10G bandwidth to room, ease of link upgrade, no need to replace transparent distribution devices

Exclusive bandwidth

Ease of Bandwidth Expansion


1:1 bandwidth for FTTR, zero optical splitting, and no convergence. The access-side port rate is the same as the core-side port rate, implementing point-to-point transparent transmission.










Expansion module for the 24-port core demultiplexer

24-port demultiplexer, with chassis and one reserved expansion slot

48-port demultiplexer

Expansion module for the 24-port transparent multiplexer

24-port transparent multiplexer, with chassis and one reserved expansion slot

48-port transparent multiplexer

Number of CWDM 16-channel demultiplexer groups

3 groups

3 groups

6 groups

3 groups

3 groups

3 groups

Installation location

Core side

Core side

Core side

Building side

Building side

Building side

Maximum number of ports supported







Dimension (W × D × H)

216.4 mm * 207 mm *33 mm

297.6 mm * 438.5 mm * 40.2 mm

297.6 mm * 438.5 mm * 40.2 mm

216.4 mm * 207 mm * 33 mm

210.2 mm * 440 mm * 39.8 mm

210.2 mm * 440 mm * 39.8 mm




24-port demultiplexer, with 3 demultiplexing ports (number of trunk fiber-optic cables can be connected)

Center wavelength

1271 nm to 1571 nm (CWDM)

Channel spacing

20 nm

Channel bandwidth

±6.5 nm

Insertion loss

≤ 4 dB (demultiplxer and transparent multiplexer)

Return loss

> 45 dB

Polarization dependent loss

< 0.3 dB

Adjacent channel isolation

> 25 dB

Non-adjacent channel isolation

> 35 dB



Operating temperature

-40°C to 85°C (WDM products are not pressure sensitive and have no requirement for altitude)

Storage temperature

-40°C to 85 °C

Operating humidity

10% to 90% RH

Storage humidity

5% to 90% RH


GR-1221-Core and GR-1209-Core


3.05 kg (net weight)

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