User’s Manual
SP362B/SP363B/SP373 Series
Twist Pair to Fiber Ethernet Media Converter
http://www.micronet.info
Package Content
Thank you for purchasing Micronet Ethernet Media Converter. Before you start installing the Media
Converter, verify the following items in the package
y Media Converter y User’s Manual
y Power Adapter
Product Overview
The SP362B/SP363B 1000BASE-TX to 1000BASE-SX/LX converter is primarily designed for larger
and higher bandwidth demanding workgroups that require expansion of the Ethernet network.
SP362B/SP363B features a RJ45 jack and an SC fiber optic connectors, connecting the
1000BASE-TX network to the 1000BASE-SX/LX (fiber optic) network. At full duplex mode, the
converter can extend distances up to 55o meters for Multi-mode fiber and up to 20 kilometers for
Single-mode fiber.
The SP373 Series 10/100BASE-TX to 100BASE-FX converter is primarily designed for larger and
higher bandwidth demanding workgroups that require expansion of the Ethernet network. SP373
Series Converter features a RJ45 jack and an ST/SC/MT-RJ/VF-45 fiber optic connectors, connecting
the 10/100Mbps network to the 100BASE-FX (fiber optic) network. At full duplex mode, the converter
can extend distances up to 2 kilometers for Multi-mode fiber and up to 75 kilometers for Single-mode
fiber.
Installation
As with any electric device, you should place the equipment where it will not be subjected to extreme
temperatures, humidity, or electromagnetic interference. Specifically, the site you select should meet
the following requirements:
1. The ambient temperature should be between 0 to 40 degrees Celsius.
2. The relative humidity should be less than 90 percent, non condensing.
3. Surrounding electrical devices should not exceed the electromagnetic field (RFC) standards
for IEC 801 3, Level 2 (3V/M) field strength.
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4. Make sure that the equipment receives adequate ventilation. Do not block the ventilation holes
on each side of the switch or the fan exhaust port on the side or rear of the equipment.
Follow the steps to install the media converter. This Converter is a plug-and-play device.
1. Connect the supplied AC to DC power adapter to the receptacle at the back of the converter.
2. Attach the plug into a standard AC outlet.
SP362B/SP363B Gigabit Converter
This converter provides one TX port and one FX port. For the FX port, it provides options of either
multi-mode (SP362B) or single-mode (SP363B) fiber accommodating SC connector. For the TX port,
it uses RJ-45 connector and supports Auto-Uplink.
Cable Connection of SP362B
Port type Cable Type Max. Length
1000BASE-T Cat. 5, 5E UTP, RJ-45 100 meters
1000BASE-SX Multi-mode Fiber of 850nm (62.5/125µm) 220 meters
1000BASE-SX Multi-mode Fiber of 850nm (50/125µm) 550 meters
Cable Connection of SP363B-10/20
Port type Cable Type Max. Length
1000BASE-T Cat. 5, 5E UTP, RJ-45 100 meters
1000BASE-LX Single-mode Fiber of 1300nm (9 or 10/125µm)
10 km (SP363B-10)
20 km (SP363B-20)
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LED Indication
Please refer to the following table for LED indication of SP362B/SP363B
LED Status Indication
PWR Steady The Power is on
Steady A valid network connection established on TX port LNKC
Off No connection
Steady A valid network connection established on Fiber port LNKF
Off No connection
Steady Connection in full duplex mode
Flashing Collision occurred
FDX/COL
Off Connection in half-duplex mode
Steady Receiving data RX
Off No reception
Steady Transmitting data TX
Off No transmission
DIP Setting of SP362B/SP363B
Port settings are made very simple by means of a DIP (Dual Inline Package) switch at the front panel
of the module. The default setting is auto negotiation as shown below. If the Pin 1 is on, it means the
fiber port will automatically choose Full Duplex or Half Duplex. User could toggle off Pin 1 to force the
fiber port at Full Duplex. Pin 2 is now reserved for future use.
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SP373 Series 10/100TX to 100FX Converter
This converter provides one TX port and one FX port. For the FX port, it provides options of either
multi-mode or single-mode fiber accommodating ST/SC/MT-RJ/VF-45 connector. For the TX port, it
uses RJ-45 connector supports auto senses the speed of 10/100Mbps.
New features support Auto Uplink on TX port and LFPT (Link-Fault-Pass-Through).
Auto Uplink: User can connect to PC or switch/hub by using either straight-through or cross-over
cable. It will automatically detect the type of cable and link the connection.
Link Fault Pass-Through: When cable in one end is OUT (disconnected/damaged/at fault), it will
inform the other end by turning OFF the remote end's link LEDs.
Cable Connection of SP373A/B/C/D
Port type Cable Type Max. Length
10/100BASE-T Cat. 3, 4, 5 UTP, RJ-45 100 meters
100BASE-FX Multi-mode fiber of 62.5/125µm or 50/125µm 2 km
Cable Connection of SP373B-15/40/75
Port type Cable Type Max. Length
10/100BASE-T Cat. 3, 4, 5 UTP, RJ-45 100 meters
100BASE-FX Single-mode Fiber of 1300nm (9 or 10/125µm)
15 km (SP373B-15)
40 km (SP373B-40)
75 km (SP373B-75)
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LED Indication
Please refer to the following table for LED indication of SP373 Series
LED Status Indication
Steady The Power is on PWR
Off The Power is off
Steady Connection at speed of 100Mbps 100 (Mbps)
Off Connection at speed of 10Mbps
Steady A valid network connection established
Flashing Transmitting or receiving data
LNK/ACT
Off Neither valid network connection established nor
transmitting/receiving data.
Steady Connection in full duplex mode
Flashing Collision occurred
FDX/COL
Off Connection in half-duplex mode
First 2 LEDs
indicated FX port status
Second column 2 LEDs
indicated TX port status.
DIP Setting of SP373 Series
Port settings are made very simple by means of a DIP (Dual Inline Package) switch at the rear panel
of the module. The default setting is auto negotiation and LFPT (Link-Fault-Pass-Through) enable as
shown below. A connected network device might fail to respond to the auto negotiation mechanism
due to various reasons, and therefore, this DIP switch allows user to manually adjust the TX/RX
speed and duplex modes.
There are six pins on the DIP switch for port settings. Refer to the table below for more details.
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Pin1 Pin2 Pin3 Pin4 Pin5 Pin6
OFF
Disable
LFPT
Enable forced
mode for TX
port
TX port forced
to 10Mbps
TX port forced
to half duplex
mode
FX port forced
to half duplex
mode
Reserved
ON
Enable
LFPT
Enable auto
negotiation for
TX port
TX port forced
to 100Mbps
TX port forced
to full duplex
mode
FX port forced
to full duplex
mode
First, disconnect the converter from the power. Then toggle Pin 2 of the DIP switch to the OFF
position to enable the force mode for TX port.
Note: The Pin 2 must be toggled off prior to any port settings manually.
y Toggle on Pin 3 to force the TX port at the speed of 100Mbps. Or toggle off Pin 3 for 10Mbps speed.
y Toggle on Pin 4 to force the TX port at full duplex mode. Or toggle off Pin 4 for half duplex mode.
y Toggle on Pin 5 to force the FX port at full duplex mode. Or toggle off Pin 5 for half duplex mode.
Connect the converter to the power again. The new setting will come into effect then.
SPECIFICATIONS OF SP362B/SP363B
MODEL SP362B
SP363B-XX
STANDARD IEEE802.3ab 1000BASE-T;
IEEE802.3z 1000BASE-SX
IEEE802.3ab 1000BASE-T;
IEEE802.3z 1000BASE-LX
INTERFACE RJ-45 port x 1 (1000 Mbps)
SC connector Fiber port x 1 (1000 Mbps)
TP CONNECTIONS 1000BASE-T: UTP Category 5, 5E
FIBER CONNECTIONS 1000BASE-SX: 62.5/125µm or
50/125µm Multi-mode fiber, SC
connector
1000BASE-LX: 9 or 10/125µm
Single-mode fiber, SC connector
LED INDICATIONS Power; TX Link/FX Link; Full Duplex/Collision; TX/RX
MAX. DISTANCE
550m
10km and 20km
FILTERING
/FORWARDING RATE
1000Mbps: 1,488,000pps/1,488,000pps
ENVIRONMENT Operating Temp: 0 ~ 40°C
Storage Temp: -25 ~ 70°C
Humidity: 10 ~ 90% non-condensing
POWER 12V 600mA
NET WEIGHT 150 g
EMISSION FCC Class A, CE
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SPECIFICATIONS OF SP373 Series
MODEL SP373A SP373B SP373C SP373D SP373B-XX
STANDARD IEEE802.3 10BASE-T; IEEE802.3u 100BASE-TX/FX
TP PORT RJ-45 x 1 (10/100 Mbps)
100BASE-FX PORT ST SC
MT-RJ VF-45 SC
TP CONNECTIONS
10BASE-T: UTP Category 3,4,5
100BASE-TX : UTP Category 5
FIBER
CONNECTIONS
62.5/125µm or 50/125µm multi-mode fiber
9 or 10/
125µm
single-mode
LED INDICATIONS Power; Speed; Link; Activity; Full Duplex; Collision
MAX. DISTANCE
2km
15, 40 and
75km
FILTERING
/FORWARDING
RATE
10Mbps: 14,880pps/14,880pps
100Mbps: 148,800pps/148,800pps
ENVIRONMENT Operating Temp: 0 ~ 40°C
Storage Temp: -25 ~ 70°C
Humidity: 10 ~ 90% non-condensing
POWER 12V 600mA
NET WEIGHT 150 g
EMISSION FCC Class A, CE
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause radio interference, in
which case the user may be required to take adequate measures.
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