RXD:
ON indicates the modem is Receiving Data from the
SIGNAL I/O
GENERAL INFORMATION
CERTIFICATION
remote unit.
The OMT-8B uses an RJ-45 female connector as signal I/O.
Luxcom Technologies Inc. certifies that this modem met its
DESCRIPTION
Connections correspond to the IEEE 802.3 standard. The table
published specification at the time of shipment from the factory.
The OMT-8B fiber optic Ethernet transceiver attaches to a
below gives details of this connection.
INSTALLATION
computer allowing the computer to connect to a fiber optic Local
Plug the OMT-8B cable into the twisted pair port of the Ethernet
Area Network. The OMT-8B Transceiver attaches to the twisted
WARRANTY
card, using a straight through RJ-45 to RJ-45 cable. Connect the
pair port on any IEEE 802.3 (Ethernet) compatible card. The
This Luxcom Technologies product is warranted against defects in
TX of the OMT-8B to the RX of the hub, and the RX of the OMT-
signals are transmitted by the transceiver over a pair of optical
materials and workmanship for a period of one year from the date
8B to the TX of the hub. The OMT-8B transceiver is designed to
fibers. These fibers attach to any IEEE 10 Base FL port. As well,
of shipment. Luxcom Technologies will, at its option, repair or
work with 62.5 core fibers, terminated with ST connectors at both
the OMT-8B modem can be connected back to back for a
replace products which prove to be defective during the warranty
ends. Fibers with 100 core will work: however some optical
dedicated link; it can also interface with transceivers from other
period provided they are returned to Luxcom Technologies.
attenuation may have to be added to insure the receiving modem
manufacturers. The OMT-8B is available with ST or SC
Repairs necessitated by misuse of the product are not covered by
1 2 3 4 5 6 7 8
is not overloaded (-12dBm max). Fibers with 50 core will also
connectors.
this warranty. NO OTHER WARRANTIES ARE EXPRESSED OR
work, however the smaller core allows about 4 dBs less light into
IMPLIED, INCLUDING, BUT NOT LIMITED TO , THE IMPLIED
the fiber. This degrades the allowable link loss from 14.5 dBs to
RJ-45 Pin Configuration
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
SPECIFICATIONS
10.5 dBs. Note that optionally, the transceiver can be ordered
PARTICULAR PURPOSE. LUXCOM TECHNOLOGIES IS NOT
OPTICAL
with SC optical connectors. The E-LINK and O-LINK LEDs
LIABLE FOR CONSEQUENTIAL DAMAGES.
Light source .................................... 850nm LED standard
should be lit and the system working. For mounting the
1300nm multimode optional
POWER CONNECTOR
transceivers, there are several options available, as described in
REPACKING FOR SHIPMENT
1300nm single mode optional
the
ACCESSORIES
section of the manual.
Power is derived from an external 6V DC power cube, and is
Optical Connectors ........................ ST or SC
I
f the modem needs to be shipped by commercial transportation
applied through a receptacle with a 2 mm center pin. The center
-9
-9
Optical Sensitivity (10 BER) ............ -32.5 dBm (10 BER)
for service or repair, It is recommended that it be packaged in the
pin is + and the outer ring is -.
TROUBLE SHOOTING
Operating Wavelength .................... 850 nm multimode standard
original manner. Before returning the item, paperwork indicating
Pwr indicator NOT on...
1300nm multimode optional
the name, department, company and telephone number of the
MOUNTING OPTIONS
Check that the power cube outputs 6V, and that the center pin is
1300 nm singlemode optional
sender, model and serial number of the product and a brief
The OMT-8B can be individually mounted using a plastic mounting
positive with respect to the barrel. If the modem has power, then
Optical output (62.5/125 fiber) ....... -18 dBm min.
description of the problem should be enclosed. As well, the sender
clip, or as groups of 6 transceivers using the 1RU high rack
the modem is faulty and should be returned to the factory for
9/125 single mode fiber .................... -16 dBm min.
must also request a Return Authorization Number ( RNA ) from
mounting panel. Both are available as options from Luxcom
repair.
Photo detector ............................... PIN Si multimode
Luxcom Technologies Inc.
Technologies. See
ACCESSORIES
section.
InGaAs singlemode
Link indicator NOT on...
Operating distance
Check that the TX and RX optical fibers are not reversed. Check
LED INDICATORS
that the received optical power is greater than -32.5 dBm using a
The OMT8 contains a number of status indicator LEDs, the
power meter. If no power is present, check to be sure the modem
functions of which are as follows:
at the far end is powered up. You can look into the TX port at the
far end to see if a small red light is visible. This light is always
ELECTRICAL
PWR:
ON indicates the modem has DC POWER from the
present in a powered up 850nm modem.
Data Rate ........................................ 10Mb/s IEEE 802.3 compliant
external power cube.
Data I/O connector ......................... RJ-45
Note: Looking into fibers or optical ports of lasers can cause
Power Source (supplied) ................. External 6V DC power cube
O LINK:
ON indicates the modem has an Optical LINK with the
eye damage, however this is not the case with the OMT-8B
Supply voltage range ....................... 5.5 to 8V DC
remote modem. (The received power is greater than -32.5dBm.)
modem as an LED is used as a light source.
Power consumption ....................... 1.2Watts
Check the optical cable integrity between the two modems.
E LINK:
ON indicates the OMT-8B has a twisted pair connection
(Electrical LINK)
. This indicator is also used to indicate reversed input
GENERAL
System won't communicate...
Operating Temperature .................. 0ºC to 50ºC
Check to be sure the OMT-8B is not overloaded optically. The
leads. Reversal is indicated by slow flashing of the LED
(~ 4Hz).
Humidity (RH) ................................ 10% to 95%
maximum received power should be less than -14.5dBm.
MTBF ............................................. >50,000 hrs
Overloading can only occur when large core fibers are used, such
TXD:
ON indicates the computer is Transmitting Data.
Dimensions (H*W*D) .................... 2.0 * 4.1 * 8.7 cm
as 100/125.
Note: Specifications are subject to change without notice.
M version -18dBm launch, 62.5/125 fiber, 3 dB loss/Km........ ........ ........ 4 Km
MM version -18dBm launch, 62.5/125 fiber, .8 dB loss/Km........ ........ ........ 18 Km
SM version -16dBm launch, 9/125 fiber, .4 dB loss/Km ........ ........ ........ 40 Km