Complete Installation Guide
Ethernet Extender
Model Number: SJ-L-DSL
SJ-L-DSL
is a network signal extension device, which
consists of remote unit and local unit. It can transmit
network signal via two-wire such as
CAT5, telephone
or coaxial cable, etc
. The distance can reach
3,000m
and max bandwidth can be up to
148Mbps
.
Meanwhile, it also can transmit telephone signal
when transmitting network signal (
adding an
additional splitter
). This device can be widely
applied in network signal extending system, network
security system, network information distribution
system, network renovation and expansion systems,
railway, urban traffic, mining and telecommunication,
etc.
◆
Long distance transmission as far as 3,000m
◆
Max transmission rate reach 148Mbps; 1,200m can reach
30Mbps
◆
Easy installation, CAT5, telephone or coaxial cable are
available
◆
Communication rate adaptive, no need to adjust
◆ Excellent real-time function, strong anti-interference
Product Description Product Features
Connection Diagram
Terminal and Dimension
User Manual
Complete Installation Guide
Transmitter（（（（A）））） Receiver（（（（B））））
1. Set the local and remote device through Local/Remote
switch . Status Indicator is only on for
the local device.
2.
Connect the remote LAN port to the network
equipment RJ45 output. LINE terminal is connected
to two-wire.
3. Connect the low-voltage power supply (12VDC) to the
port of remote side, POWER
indicator is on, LINK indicator is on.
4.
Connect the other end of the two-wire cable to the local LINE
4. Connect the other end of the two-wire cable to the local LINE
terminal , LAN port is connected to the
network equipment (such as PC) through network patch cord.
5. Connect the low-voltage power supply (12VDC) to the port
of local side, POWER indicator is
on, LINK indicator is on.
6. When network transmission is smooth, the devices
automatically try to connect. The LINE indicator
quickly flash. Then it shows that network signal transmission is
normal.
7. The RESET button is used when network
transmission is not smooth. It only can recover the transmission
channel of the devices.
Terminal Instructions
Installation Instructions
User Manual
Complete Installation Guide
Category Description
Available Voltage Range 12VDC
Power
Power Consumption <3W
4KV 10/700us, common mode lightning: Level 4
1KV 10/700us, differential mode lightning: Level 1
Transmission Channel Lightening
Executive Standard: IEC61000-4-5
1a contact discharge Level 4
1b air discharge Level 4
Protection
Product Electrostatic Protection
Executive Standard: IEC61000-4-2
Reliability
MTBF >30000 hours
Dimensions (L × W × H) 108mm×84mm×24mm (including the terminal length)
Material Aluminum
Color Black
Product Physical
Characteristic
Net Weight 0.5KG/ Pair
Working Temperature
0℃～50℃
Storage Temperature
0℃～85℃
Operating
Environment
Humidity
＜95%
Dissymmetry Symmetry
Cable
Standard
Transmission
Distance
Downlink
Rate
Uplink Rate Total Rate Downlink Rate Uplink Rate Total Rate
15m 101 Mbps 45 Mbps 146 Mbps 69 Mbps 69Mbps 138 Mbps
300m 91 Mbps 42 Mbps 133 Mbps 60 Mbps 74 Mbps 134 Mbps
600m 56 Mbps 28 Mbps 84 Mbps 37 Mbps 52 Mbps 89 Mbps
900m 36 Mbps 8 Mbps 44 Mbps 21 Mbps 31 Mbps 52 Mbps
1200m 26 Mbps 3 Mbps 29 Mbps 14 Mbps 20 Mbps 34 Mbps
26AWG/
0.4mm×2
2600m 4.5 Mbps 0.83 Mbps 5.3 Mbps 2.2 Mbps 3.5 Mbps 5.7 Mbps
Technical Parameters
Transmission Rate Parameters
User Manual
Complete Installation Guide
Use EIA/TIA568B standard to make RJ45 terminal Power Adapter: DC12V/1A (Optional)
Telephone Line: CAT3 telephone Twisted Pair: CAT5 or above
cables or above
Coaxial Cable: RG 59 or above
Accessory and Cable Tips
User Manual
Complete Installation Guide
1)
Signal transmission cable must be the copper cable. Other
material cables will cause the decrease of signal transmission
quality and distance.
2)
Transmitting network data signal by mixing twisted pair,
telephone line connection is forbidden.
3)
This device has no waterproof design. Please use the product
in dry environment.
4)
Please choose matching power supply specification
(12VDC/ 1A) to supply power for devices respectively.
5)
Check the local unit and remote unit carefully before use.
Set remote and local device by the switch. Remote and
local unit could be optionally installed. But it does not
work if setting local + local or remote + remote.
6)
Long-distance cable connections must be standard connection
method, such as welding or use connectors.
7)
If the devices fail, you do not disassemble or repair, please
contact us timely.
Tips: If devices activation fails, the devices will automatically re-try to activate after an intervals. In this interval of time
(about 1 minute), LINE indicator is off.
Railway System Application:
In railway system, there are many systems. IP surveillance and network data transmission become more and more important. It
refers to digital information platforms, network data dispatching and IP surveillance, which need excellent transmission solution.
Ethernet Extender is very good choice.
Panel
Indicator
Feature
Phenomenon
ON Power supply work smoothly.
POWER
OFF
Power supply can not work
smoothly.
ON The line has been activated
OFF The line has not been activated
LINE
Flashing The line is trying to activate.
ON
Correct connection of Ethernet
interface.
LINK
OFF
Disconnection of Ethernet
interface.
Product Use Notes
Simple Fault Cases
Application Field Cases
User Manual
Complete Installation Guide
Electric Power System Application:
With rapid development of the electric power system, the substations of human operating equipments gradually become
unattended and intelligent trend. Now Ethernet Extender is widely used in electric power system.
Application Field Cases
User Manual
Complete Installation Guide
Elevator System Application:
Ethernet Extender is widely used in elevator. We can transmit network data signals with two-wire in accompanying cables. The
only thing customers do is to install Ethernet Extender at both sides of the cables. It is perfect for IP surveillance and analog
system upgrade in elevator. Besides, network information publishing platforms in the elevator also need the support of Ethernet
Extender.
User Manual
Attention: The device may be a little hot at work. It is normal phenomenon. Specifications are subject to change
without notice.
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