Model 8370 - AUI to Fiber Optic Transceiver - DIN Rail Mounted Lan Spreader



Reference Manual


Table of Contents

1.0 Overview
2.0 Device Specifications
3.0 Device Operation
3.1 Cable Connections
3.2 User Interface
3.2.1 Status LED's
3.2.2 SQE ( Signal Quality Erro) Heartbeat Switch
4.0 Help
Warranty


1.0 Overview

You can now break the distance barrier of Ethernet based Local Area Networks while providing a sys-tem totally safe from electrical interference. The use of Model 8370 allows your LAN to be ex-tended to a distance of 2 km, or 6600 feet.
This allows the LAN to be spread to distant build-ings without the usual concern for electrical inter-ference from other equipment, ground loops, surges or lightning strikes nearbySince a connection between the server and workstations using the Model 8370 is based on fiber optics, it is impervious to such disturbances.Since a connection between the server and workstations using the Model 8370 is based on fiber optics, it is impervious to such disturbances.
The full duplex signals from the AUI port on the DTE are converted to optical signals and driven over a pair of fiber optic cables. This AUI-to-fiber interface allows any network device with an IEEE 802.3 compliant AUI port (DTE's, repeat-ers, fan-out units, hubs) to be connected via fi-ber optic cable (see Figure 1). Figure 2 shows extending a LAN to a remote location. The AUI port power pins, which normally provide power to a transceiver, are used to power the Model 8370, eliminating the need for power connectors and adapters.
Five LEDs are used to provide status informa-tion as described below. In addition a switch is provided which enables or disables the SQE signal from being generated. The SQE function is described in detail in section 3.2.2. The device complies with Ethernet and IEEE 802.3 (10BASE-FL) specifications.



2.0 Device Specifications

Size: 1.5"W x 3.5"L x 1"H


Power: 12-15 volts, 150 mA typical,350mA maximum

Connectors:
DB-15 male connector (AUI Port)
ST- style fiber optic connectors
( AMP 2.5 mm bayonet connector or similar)
Lan Interface:Ethernet ot IEEE 802.3

Port Interface:Multimode 6.25/125
Optical Power Budget -16.5
dBm
SQE Heartbreat Function: Switch Selectable

Indicators:
Link Monitor (yellow)
Recive (green)
Transmit (green)
Collision (red)
Jabber (red)

NOTE: The collision, receive, and transmit indi-cators have internal timers which extend the event for better visibility.

Environmental: Temperature - 0 C to 50 C; Relative Humidity - 0% to 95%, no condensation.

3.0 Device Operation

3.1 Cable Connection
Because the transceiver is powered through the AUI cable, it is recommended that this cable be connected before connecting the fiber optic ca-bles. The AUI cable connects the AUI port on the Ethernet card installed in the DTE to the AUI connector on the fiber optic transceiver.
Once the AUI cable has been connected, the fi-ber optic cables may be installed. The fiber op-tic cables must be terminated with ST-type con-nectors in order to interface with this trans-ceiver. It is important when dealing with fiber optic cables to insure that the TX on one end of the link is connected to the RX at the other end of the link. Some duplex fiber optic cables are coded to help monitor the direction of data travel. If the fibers are not coded, special atten-tion must be paid to insure a proper connection. When holding the unit flat with the label facing up and the fiber connectors toward you, the TX port is on the left, and the RX port is on the right.

3.2 User Interface
3.2.1 Status LED's
The five status LED's on the front panel monitor the operation of the device.
Link Monitor - This LED will be lit when the input power at the RX port exceeds a certain mini-mum level, and there are transitions that indi-cate either an idle signal or active data. If the power falls below the minimum, or transitions cease, the LED will go off indicating that there is no valid link to the RX port.
Collision - This LED will be lit when a collision is taking place. This occurs when data is detected on both the TX and RX port simultaneously. This event is extended with an internal timer for visibility.
Jabber - This LED will be lit when the trans-ceiver is in the Jabber state. This occurs when the packet length that the transceiver is attemptattempting to transmit exceeds the maximum Ethernet packet length. When in the Jabber state, the transmit section of the transceiver will be disabled.
TD and RD - These LED's will be lit to indicate that the transceiver is transmitting or receiving data. This event is extended with
3.2.2. SQE (Signal Quality Error) Heartbeat Switch
The SQE switch enables the user to activate or deactivate the SQE Heartbeat test. When acti-vated (ON), the transceiver will transmit a short collision signal over the AUI to the attached net-work device at the end of each successfully transmitted packet. This signal enables the DTE to ensure that the collision detect enables the DTE to ensure that the collision detect cir-cuitry is functional.
Not all network devices support the SQE Heart-beat test. If the attached network device does not support the heartbeat test, the option should be disabled (OFF) to prevent the device from in-terpreting each heartbeat as a collision on the network.
The IEEE 802.3 standard does provide for the heartbeat test, so this function should be acti-vated for all DTE's that comply with IEEE 802.3. The SQE Heartbeat should be disabled when the Model 8370 is connected via the AUI to a repeater or hub. A repeater or hub would pass the heartbeat collision signal to a fiber optic segment, where it would be interpreted as an actual collision.
4.0 Help
If any assistance is required for the product or any other METROTEK product, call METROTEK's Customer Service at (727) 547-8307, Fax (727) 547-0687 or email fiberoptics@metrotek.com.

Warranty
METROTEK warrants the equipment to be free from defects in material and workmanship, under normal and proper use and in its unmodified condition, for 12 months, starting on the date it is delivered for use. METROTEK's sole obligation under this warranty shall be to furnish parts and labor for the repair or replacement of products found by METROTEK to be defective in material or workmanship during the war-ranty period. Warranty repairs will be performed at the point of manu-facture. Equipment approved for return for warranty service shall be re-turned F.O.B. METROTEK warehouse and will be redelivered by METROTEK freight prepaid, except for non- continental U.S.A. locations. These deliveries will be sent COD freight and import/export charges.

THE ABOVE WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, STATUTORY OR OTHERWISE, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. METROTEK SHALL NOT BE LIABLE FOR ANY DAMAGES SUSTAINED BY RESELLER OR ANY OTHER PARTY ARISING FROM OR RELATING TO ANY EQUIPMENT FAILURE, INCLUDING, BUT NOT LIMITED TO CONSEQUENTIAL DAMAGES NOR SHALL METROTEK HAVE ANY LIABILITY FOR DELAYS IN REPLACEMENT OR REPAIR OF EQUIPMENT.

Out of warranty equipment may be returned to the FL customer service facility prepaid as described above. Return shipping charges will be billed to the customer. The repaired unit will have a 90 day warranty. In those cases where "NO TROUBLE" is found, a re-duced charge will be billed to cover handling, testing and packaging.

Whether in or out of warranty a Return Material Authorization number (RMA) is necessary and can be obtained by calling (727) 547-8307, Fax (727) 547-0687 Reference RMA number on the outside container.


Product Page Specifications


For more information, contact:
Metrotek
Phone: (727) 547-8307
Fax: (727) 547-0687

E-mail: fiberoptics@metrotek.com

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