Ruijie RG-DEMUX Series Installation and operating manual

Ruijie RG-DEMUX/MUX Series
Multiplexers and Demultiplexers
Hardware Installation and Reference Guide
Document Version: V1.2
Date: 2022.04.14
Copyright © 2022 Ruijie Networks

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1
Preface
Audience
This document is intended for:
Network engineers
Technical support and servicing engineers
Network administrators
Technical Support
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Conventions
1. Signs
The signs used in this document are described as below:
Danger
An alert that calls attention to safety instruction that if not understood or followed when operating the device can
result in physical injury.
Warning
An alert that calls attention to important rules and information that if not understood or followed can result in
data loss or equipment.
Caution
An alert that calls attention to essential information that if not understood or followed can result in function
failure or performance.
Note
An alert that contains additional or supplementary information that if not understood or followed will not lead to
serious consequences.

Hardware Installation and Reference Guide Overview
2
Specification
An alert that contains a description of product or version support.
2. Note
Some information in this guide (such as product model, description, port type, and software interface) is for
reference only and the actual product may vary.
This guide describes the installation procedure, troubleshooting procedure, technical specifications, and optical
module specifications and usage guidelines. It is intended for users who have some experience in installing and
maintaining network hardware and assumes that the user is familiar with relevant terminology and concepts.

Hardware Installation and Reference Guide Overview
3
1 Overview
The RG-DEMUX/MUX series demultiplexers and multiplexers are passive devices for optical switching
released by Ruijie Networks for simplified optical Ethernet scenarios.
Boasting CWDM technology and 16-channel standard wavelengths ranging from 1271nm to 1571nm in 20nm
increments, this series, when used along with Ruijie Simplified Optical Ethernet solutions, can extend 10G/1G
optical fibers to each room and meet customer requirements for collapsing the distribution switch, achieving
passive distribution nodes, and reducing the configuration and O&M workloads of active distribution nodes.
Moreover, in some reconstruction scenarios, expansion of port services also becomes possible with existing
optical fiber resources, thus solving the problem of insufficient optical fiber resources.
Table 1-1 Specifications of RG-DEMUX/MUX Series
Model
Name
Number of
CWDM
16-channel
demultiplexe
r groups
Install
ation
locatio
n
Maximu
m
number
of ports
support
ed
Dimension
s (W × D ×
H)
RG-DEMUX-24LC/LC
Expansion
module for the
24-port core
demultiplexer
3 groups
Core
side
24
216.4 mm *
207 mm * 33
mm
RG-DEMUX(C)-24LC/LC
24-port
demultiplexer,
with chassis
and one
reserved
expansion slot
3 groups
Core
side
24
297.6 mm *
438.5 mm *
40.2 mm
RG-DEMUX-48LC/LC
48-port
demultiplexer
6 groups
Core
side
48
297.6 mm *
438.5 mm *
40.2 mm
RG-MUX-24LC/LC
Expansion
module for the
24-port
multiplexer
3 groups
Buildin
g side
24
216.4 mm *
207 mm * 33
mm
RG-MUX(C)-24LC/LC
24-port
multiplexer,
with chassis
and one
3 groups
Buildin
g side
24
210.2 mm *
440 mm *
39.8 mm

Hardware Installation and Reference Guide Overview
4
reserved
expansion slot
RG-MUX-48LC/LC
48-port
multiplexer
3 groups
Buildin
g side
48
210.2 mm *
440 mm *
39.8 mm
Caution
The multiplexer in this series should be used along with a Ruijie CWDM transceiver!
1.2 RG-DEMUX(C)-24LC/LC
1.2.1 Specifications
Table 1-2 Specifications
Model
RG-DEMUX(C)-24LC/LC
Description
24-port demultiplexer, with 3 multiplexing ports (number of fiber trunk cables
connected)
Center wavelength
1271 nm to 1571 nm (CWDM)
Channel spacing
20 nm
Channel bandwidth
±6.5 nm
Insertion loss
≤ 4 dB (demultiplexer and multiplexer)
Return loss
> 45 dB
Polarization
dependent loss
> 0.3 dB
Adjacent channel
isolation
> 25 dB
Non-adjacent channel
isolation
> 35 dB
Connector
LC/UPC
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
Standards
GR-1221-Core and GR-1209-Core

Hardware Installation and Reference Guide Overview
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Weight
3.05 kg (net weight)
1.2.2 Appearance
Integrating 3 groups of CWDM 16-channel passive wavelength division demultiplexers,
RG-DEMUX(C)-24LC/LC supports 24 access ports, and has 3 multiplexing ports. The peer end should be used
together with a multiplexer (RG-MUX(C)-24LC/LC or RG-MUX-48LC/LC). RG-DEMUX(C)-24LC/LC reserves
one expansion slot.
Figure 1-2 RG-DEMUX(C)-24LC/LC
Installation location: RG-S7800C series chassis or 19 RU rack on the core side, wall-mounting also supported.
1. Front Panel
The device contains one expansion module. The enlarged view of the expansion module on the front panel is
shown below:
Note
●Multiplexing Port A - correspond to the first group of 16 channels
M
E
S
e
x
M

Hardware Installation and Reference Guide Overview
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●Multiplexing Port B - correspond to the second group of 16 channels
●Multiplexing Port C - correspond to the third group of 16 channels
●Demultiplexing Port 1 should be connected to Core 1 CWDM transceiver
●Demultiplexing Port 2 should be connected to Core 2 CWDM transceiver
●Demultiplexing Port 3 should be connected to Core 3 CWDM transceiver
●Demultiplexing Port 4 should be connected to Core 4 CWDM transceiver
●Demultiplexing Port 5 should be connected to Core 5 CWDM transceiver
●Demultiplexing Port 6 should be connected to Core 6 CWDM transceiver
●Demultiplexing Port 7 should be connected to Core 7 CWDM transceiver
●Demultiplexing Port 8 should be connected to Core 8 CWDM transceiver
2. Back Panel
1.3 RG-DEMUX-48LC/LC
1.3.1 Specifications
Table 1-3 Specifications
Model
RG-DEMUX-48LC/LC
Description
48-port demultiplexer, with 6 multiplexing ports (number of fiber trunk cables
connected)
Center wavelength
1271 nm to 1571 nm (CWDM)

Hardware Installation and Reference Guide Overview
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Channel spacing
20 nm
Channel bandwidth
±6.5 nm
Insertion loss
≤4 dB (demultiplexer and multiplexer)
Return loss
> 45 dB
Polarization
dependent loss
> 0.3 dB
Adjacent channel
isolation
> 25 dB
Non-adjacent channel
isolation
> 35 dB
Connector
LC/UPC
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
Standards
GR-1221-Core and GR-1209-Core
Weight
3.49 kg (net weight)
1.3.2 Appearance
Integrating 6 groups of CWDM 16-channel passive wavelength division demultiplexers, RG-DEMUX-48LC/LC
supports 48 access ports, and has 6 multiplexing ports. The peer end should be used together with a
multiplexer (RG-MUX(C)-24LC/LC or RG-MUX-48LC/LC).
Figure 1-3 RG-DEMUX-48LC/LC

Hardware Installation and Reference Guide Overview
8
Installation location: RG-S7800C series chassis or 19 RU rack on the core side, wall-mounting also supported.
1. Front Panel
The device contains two expansion modules. The enlarged view of the expansion module on the front panel is
shown below:
Note
●Multiplexing Port A - correspond to the first group of 16 channels
●Multiplexing Port B - correspond to the second group of 16 channels
●Multiplexing Port C - correspond to the third group of 16 channels
●Demultiplexing Port 1 should be connected to Core 1 CWDM transceiver
●Demultiplexing Port 2 should be connected to Core 2 CWDM transceiver
●Demultiplexing Port 3 should be connected to Core 3 CWDM transceiver
●Demultiplexing Port 4 should be connected to Core 4 CWDM transceiver
●Demultiplexing Port 5 should be connected to Core 5 CWDM transceiver
●Demultiplexing Port 6 should be connected to Core 6 CWDM transceiver
●Demultiplexing Port 7 should be connected to Core 7 CWDM transceiver
●Demultiplexing Port 8 should be connected to Core 8 CWDM transceiver
2. Back Panel

Hardware Installation and Reference Guide Overview
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1.4 RG-MUX(C)-24LC/LC
1.4.1 Specifications
Table 1-4 Specifications
Model
RG-MUX(C)-24LC/LC
Description
24-port multiplexer, with 3 multiplexing ports (number of fiber trunk cables
connected)
Center wavelength
1271 nm to 1571 nm (CWDM)
Channel spacing
20 nm
Channel bandwidth
±6.5 nm
Insertion loss
≤ 4 dB (demultiplexer and multiplexer)
Return loss
> 45 dB
Polarization
dependent loss
> 0.3 dB
Adjacent channel
isolation
> 25 dB
Non-adjacent channel
isolation
> 35 dB
Connector
LC/UPC
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

Hardware Installation and Reference Guide Overview
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Operating Humidity
10% to 90% RH
Storage Humidity
5% to 90% RH
Standards
GR-1221-Core and GR-1209-Core
Weight
2.57 kg (net weight)
1.4.2 Appearance
Integrating 3 groups of CWDM 16-channel passive wavelength division demultiplexers, RG-MUX(C)-24LC/LC
supports 48 access ports, and has 3 multiplexing ports. The peer end should be used together with a
demultiplexer (RG-DEMUX(C)-24LC/LC or RG-DEMUX-48LC/LC). RG-MUX(C)-24LC/LC reserves one
expansion slot.
Figure 1-4 RG-MUX(C)-24LC/LC
Installation location: 19 RU rack on the building side, wall-mounting also supported.
1. Front Panel
The device contains one expansion module. The enlarged view of the expansion module on the front panel is
shown below:

Hardware Installation and Reference Guide Overview
11
Note
●Multiplexing Port A - correspond to the first group of 16 channels
●Multiplexing Port B - correspond to the second group of 16 channels
●Multiplexing Port C - correspond to the third group of 16 channels
●Demultiplexing Port 1 should be connected to Access 1 CWDM transceiver
●Demultiplexing Port 2 should be connected to Access 2 CWDM transceiver
●Demultiplexing Port 3 should be connected to Access 3 CWDM transceiver
●Demultiplexing Port 4 should be connected to Access 4 CWDM transceiver
●Demultiplexing Port 5 should be connected to Access 5 CWDM transceiver
●Demultiplexing Port 6 should be connected to Access 6 CWDM transceiver
●Demultiplexing Port 7 should be connected to Access 7 CWDM transceiver
●Demultiplexing Port 8 should be connected to Access 8 CWDM transceiver
2. Back Panel
1.5 RG-MUX-48LC/LC
1.5.1 Specifications
Table 1-5 Specifications
Model
RG-MUX-48LC/LC
Description
48-port multiplexer, with 6 multiplexing ports (number of fiber trunk cables
connected)
Center wavelength
1271 nm to 1571 nm (CWDM)
Channel spacing
20 nm
Channel bandwidth
±6.5 nm
Insertion loss
≤ 4 dB (demultiplexer and multiplexer)
Return loss
> 45 dB

Hardware Installation and Reference Guide Overview
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Polarization
dependent loss
> 0.3 dB
Adjacent channel
isolation
> 25 dB
Non-adjacent channel
isolation
> 35 dB
Connector
LC/UPC
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
Standards
GR-1221-Core and GR-1209-Core
Weight
3.01 kg (net weight)
1.5.2 Appearance
Integrating 6 groups of CWDM 16-channel passive wavelength division demultiplexers, RG-MUX-48LC/LC
supports 48 access ports, and has 6 multiplexing ports. The peer end should be used together with a
demultiplexer (RG-DEMUX(C)-24LC/LC or RG-DEMUX-48LC/LC).
Figure 1-5 RG-MUX-48LC/LC
Installation location: 19 RU rack on the building side, wall-mounting also supported.
1. Front Panel
The device contains two expansion modules. The enlarged view of the expansion module on the front panel is
shown below:

Hardware Installation and Reference Guide Overview
13
Note
●Multiplexing Port A - correspond to the first group of 16 channels
●Multiplexing Port B - correspond to the second group of 16 channels
●Multiplexing Port C - correspond to the third group of 16 channels
●Demultiplexing Port 1 should be connected to Access 1 CWDM transceiver
●Demultiplexing Port 2 should be connected to Access 2 CWDM transceiver
●Demultiplexing Port 3 should be connected to Access 3 CWDM transceiver
●Demultiplexing Port 4 should be connected to Access 4 CWDM transceiver
●Demultiplexing Port 5 should be connected to Access 5 CWDM transceiver
●Demultiplexing Port 6 should be connected to Access 6 CWDM transceiver
●Demultiplexing Port 7 should be connected to Access 7 CWDM transceiver
●Demultiplexing Port 8 should be connected to Access 8 CWDM transceiver
2. Back Panel
1.6 CWDM Transceivers
Note
The core CWDM transceiver should be used together with a core demultiplexer. The access CWDM transceiver
should be used together with a multiplexer. The label of CWDM transceiver should match with the multiplexing
port number. Example:
The Core 1 CWDM transceiver should be connected to Demultiplexing Port 1 of corresponding multiplexing
port of the demultiplexer.
The Access 1 CWDM transceiver should be connected to Demultiplexing Port 1 of corresponding multiplexing
port of the multiplexer.
Note
The demultiplexer should be connected to the multiplexer through the multiplexing port. The demultiplexer
should be installed in the core server room and the multiplexer in the weak power room of the building. The

Hardware Installation and Reference Guide Overview
14
core/access CWDM transceivers of the same label are ports at both ends of the same link, that is, Core 1 and
Access 1 are ports for connecting the core switch to the indoor switch.
1.6.1 XG-SFP-LR(C1-C8)
XG-SFP-LR(C1-C8) series includes eight 10G core CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
XG-SFP-LR(C1-C8)
XG-SFP-LR-SM1271-C1
Core 1
10Gbps
XG-SFP-LR-SM1291-C2
Core 2
10Gbps
XG-SFP-LR-SM1311-C3
Core 3
10Gbps
XG-SFP-LR-SM1331-C4
Core 4
10Gbps
XG-SFP-LR-SM1351-C5
Core 5
10Gbps
XG-SFP-LR-SM1371-C6
Core 6
10Gbps
XG-SFP-LR-SM1391-C7
Core 7
10Gbps
XG-SFP-LR-SM1411-C8
Core 8
10Gbps
1.6.2 XG-SFP-LR(A1-A8)
XG-SFP-LR(A1-A8) series includes eight 10G access CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
XG-SFP-LR(A1-A8)
XG-SFP-LR-SM1431-A1
Access 1
10Gbps
XG-SFP-LR-SM1451-A2
Access 2
10Gbps
XG-SFP-LR-SM1471-A3
Access 3
10Gbps
XG-SFP-LR-SM1491-A4
Access 4
10Gbps
XG-SFP-LR-SM1511-A5
Access 5
10Gbps
XG-SFP-LR-SM1531-A6
Access 6
10Gbps
XG-SFP-LR-SM1551-A7
Access 7
10Gbps
XG-SFP-LR-SM1571-A8
Access 8
10Gbps
1.6.3 GE-SFP-LR(C1-C8)
GE-SFP-LR(C1-C8) series includes eight 1G core CWDM transceivers and their models are listed below:

Hardware Installation and Reference Guide Overview
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Series
SFP Model
Label
Rate
GE-SFP-LR(C1-C8)
GE-SFP-LR-SM1271-C1
Core 1
1Gbps
GE-SFP-LR-SM1291-C2
Core 2
1Gbps
GE-SFP-LR-SM1311-C3
Core 3
1Gbps
GE-SFP-LR-SM1331-C4
Core 4
1Gbps
GE-SFP-LR-SM1351-C5
Core 5
1Gbps
GE-SFP-LR-SM1371-C6
Core 6
1Gbps
GE-SFP-LR-SM1391-C7
Core 7
1Gbps
GE-SFP-LR-SM1411-C8
Core 8
1Gbps
1.6.4 GE-SFP-LR(A1-A8)
GE-SFP-LR(A1-A8) series includes eight 1G access CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
GE-SFP-LR(A1-A8)
GE-SFP-LR-SM1431-A1
Access 1
1Gbps
GE-SFP-LR-SM1451-A2
Access 2
1Gbps
GE-SFP-LR-SM1471-A3
Access 3
1Gbps
GE-SFP-LR-SM1491-A4
Access 4
1Gbps
GE-SFP-LR-SM1511-A5
Access 5
1Gbps
GE-SFP-LR-SM1531-A6
Access 6
1Gbps
GE-SFP-LR-SM1551-A7
Access 7
1Gbps
GE-SFP-LR-SM1571-A8
Access 8
1Gbps
1.6.5 XG-SFP-LR(C1-C4)
XG-SFP-LR(C1-C4) series includes four 10G core CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
XG-SFP-LR(C1-C4)
XG-SFP-LR-SM1271-C1
Core 1
10Gbps
XG-SFP-LR-SM1291-C2
Core 2
10Gbps
XG-SFP-LR-SM1311-C3
Core 3
10Gbps
XG-SFP-LR-SM1331-C4
Core 4
10Gbps

Hardware Installation and Reference Guide Overview
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1.6.6 XG-SFP-LR(A1-A4)
XG-SFP-LR(A1-A4) series includes four 10G access CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
XG-SFP-LR(A1-A4)
XG-SFP-LR-SM1431-A1
Access 1
10Gbps
XG-SFP-LR-SM1451-A2
Access 2
10Gbps
XG-SFP-LR-SM1471-A3
Access 3
10Gbps
XG-SFP-LR-SM1491-A4
Access 4
10Gbps
1.6.7 GE-SFP-LR(C1-C4)
GE-SFP-LR(C1-C4) series includes four 1G core CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
GE-SFP-LR(C1-C4)
GE-SFP-LR-SM1271-C1
Core 1
1Gbps
GE-SFP-LR-SM1291-C2
Core 2
1Gbps
GE-SFP-LR-SM1311-C3
Core 3
1Gbps
GE-SFP-LR-SM1331-C4
Core 4
1Gbps
1.6.8 GE-SFP-LR(A1-A4)
GE-SFP-LR(A1-A4) series includes four 1G access CWDM transceivers and their models are listed below:
Series
SFP Model
Label
Rate
GE-SFP-LR(A1-A4)
GE-SFP-LR-SM1431-A1
Access 1
1Gbps
GE-SFP-LR-SM1451-A2
Access 2
1Gbps
GE-SFP-LR-SM1471-A3
Access 3
1Gbps
GE-SFP-LR-SM1491-A4
Access 4
1Gbps

Hardware Installation and Reference Guide Overview
17
1.7 Model of Expansion Modules
1.7.1 Expansion module of RG-DEMUX-24LC/LC core demultiplexer
Note: currently expansion modules are not sold separately.
One core demultiplexer expansion module has 3 groups of CWDM 16-channel multiplexing ports, and can be
expanded up to 24 ports. It should be used together with a multiplexer.
This expansion module can be plugged into the reserved expansion slot of RG-DEMUX(C)-24LC/LC 24-port
core demultiplexer.
1.7.2 Expansion module of RG-MUX-24LC/LC multiplexer
Note: currently expansion modules are not sold separately.
One multiplexer expansion module has 3 groups of CWDM 16-channel multiplexing ports, and can be
expanded up to 24 ports. It should be used together with a demultiplexer. This expansion module can be
plugged into the reserved expansion slot of RG-MUX(C)-24LC/LC 24-port multiplexer.

Hardware Installation and Reference Guide Preparing for Installation
18
2 Preparing for Installation
2.1 Safety Precautions
Warning
To avoid personal injury and device damage, please carefully read the safety precautions before installation.
The following safety precautions may not cover all possible hazardous situations.
2.1.1 General safety precautions
Please take necessary safety measures (e.g., wearing an anti-static wrist strap during the installation of the
demultiplexer/multiplexer + CWDM transceiver) to ensure the safety of yourself and the system.
Keep the chassis clean, free from any dust. Do not place the device in a damp place and protect the device
from ingress of water.
Make sure that the ground is dry and flat, and that effective slip-resistant measures have been taken.
Do not place the device in walking areas.
During the installation and maintenance, do not wear loose clothes, jewelry or any other objects that may
get caught on the chassis.
The demultiplexer is light in weight. However, after it is plugged into the slot of a RG-S7800C switch, the
switch will become heavier. More than one people should be engaged to carry or lift the switch and special
attention should be paid to personal safety when carrying or lifting the switch.
The demultiplexer/multiplexer has built-in passive components such as a three-port filter, which should be
properly secured to prevent falling. Any fall of the three-port filter should be duly recorded.
2.1.2 Laser safety
The demultiplexer/multiplexer supports a number of CWDM transceivers, which are class 1 laser products.
Warning
●When an optical fiber transceiver is in operation, make sure that the port has been connected with an
optical fiber or covered by a dust plug to keep out dust and prevent it from burning your eyes.
●Do not approach or look directly at the optical port under any circumstances to avoid permanent damage
to your eyes. Optical interfaces include modules, each channel port (multiplexing port and demultiplexing
port) of the demultiplexer and multiplexer, exposed optical fiber cables, etc.
2.1.3 Others
This guide only covers RG-DEMUX/MUX series demultiplexers/multiplexers and CWDM transceivers. For how
to plug a RG-DEMUX series demultiplexer into a RG-S7800C series core switch, please refer to the
RG-S7800C Series Switch Hardware Installation and Reference Guide. Please make preparations for
installation according to the safety precautions specified in the document.