Cabletron Systems TPFOT-2 User Manual
USING LANVIEW
LANVIEW is Cabletron Systems’ built-in diagnostic
and status monitoring system. The following describes
the LANVIEW LEDs.
Power (PWR) -
When this green LED is lit, the TPFOT-
2 adapter is receiving power. If the PWR LED is not lit,
check that the power cord is plugged into the TPFOT-2
adapter and into a wall outlet that has power.
Transmit (XMT) -
When this green LED flashes, the
TPFOT-2 adapter is receiving data at the fiber port and
transmitting data out the RJ45 port. The LED flash is
pulse-stretched for better viewing.
Receive (RCV) -
When this yellow LED flashes, the
TPFOT-2 adapter is receiving data at the RJ45 port
and transmitting data out the fiber port. The flash is
pulse-stretched for better viewing.
Collision (CLN) -
When this red LED flashes, the
transceiver has detected a collision condition or a
jabber packet on the network. The flash frequency
may increase as network activity increases since more
collisions are likely to occur. The LED flash is pulse-
stretched for better viewing.
Link OK (LNK) -
When this green LED is lit, a link
exists between the TPFOT-2 adapter and the device at
the other end of the twisted pair segment. LNK
remains lit as long as the link is maintained.
Fiber Link OK (FLNK) -
When this green LED is lit, a
link has been established between the TPFOT-2
adapter and the device at the other end of the fiber
optic segment. The LED remains lit as long as the link
is maintained.
GETTING HELP
If you have questions, or need additional help, contact
Cabletron Systems Technical Support as follows:
By Phone:
Monday through Friday 8 A.M. to
8 P.M. Eastern Time at (603) 332-
9400.
By CompuServe:
GO CTRON from any
!
prompt
By Internet mail:
support@ctron.com
FCC NOTICE
This device complies with Part 15 of the FCC rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
NOTE:
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC
rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment uses, generates, and can
radiate radio frequency energy and if not installed in accordance with
the operator’s manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause interference in which case the user will be required to
correct the interference at his own expense.
WARNING
: Changes or modifications made to this device which are
not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
DOC NOTICE
This digital apparatus does not exceed the Class A limits for radio
noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la
class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.
VCCI
NOTICE
Cabletron Systems reserves the right to make changes in
specifications and other information contained in this document
without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.
The hardware, firmware, or software described in this manual is
subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR
ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL
DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO
LOST PROFITS) ARISING OUT OF OR RELATED TO THIS
MANUAL OR THE INFORMATION CONTAINED IN IT, EVEN IF
CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR
SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.
© Copyright March 1995 by:
Cabletron Systems, Inc.
P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America
Order Number: 9030747-01, March 1995
LANVIEW
is a registered trademark of Cabletron Systems, Inc.
TPFOT-2
is a trademark of Cabletron Systems, Inc.
Ethernet
is a trademark of Xerox Corporation.
CompuServe
is a registered trademark of CompuServe, Inc.
ST
is a registered trademark of American Telephone and Telegraph
Company.
Velcro
is a registered trademark of Velcro Industries, Inc.
TPFOT-2
10BASE-T to 10BASE-FL/FOIRL
Extended Media Adapter
The TPFOT-2
adapter
is a twisted pair to fiber optic
transceiver used to connect an Ethernet 10BASE-T
twisted pair cable segment to a 10BASE-FL/FOIRL
fiber optic cable segment. The TPFOT-2 adapter has
ST type fiber optic connectors and an RJ45 connector
that is switch selectable for straight-through or
crossover operation.
REQUIREMENTS
The TPFOT-2 adapter complies with the IEEE 802.3
10BASE-FL/FOIRL specifications. For the best
network performance, observe the following network
guidelines for segment length, type, and attenuation.
Twisted Pair Segment Length
The IEEE 802.3 10BASE-T standard requires that the
devices support a 100-meter minimum segment length
using 22-26 AWG unshielded twisted pair wire. If the
signal loss is less than 11.5 dB at all frequencies
between 5 and 10 MHz, longer segments of up to 200
meters are possible.
Fiber Optic Segment Type and Length
The TPFOT-2 adapter supports 50/125, 62.5/125 and
100/140
µ
m fiber optic cables with a maximum
segment length of up to 1 kilometer (1093.6 yards) in a
FOIRL environment or up to 2 kilometers (2187.2
yards) in a 10BASE-FL environment. These maximum
lengths may vary depending on the cable type and the
number of connectors in the segment. The absolute
TPFOT-2
10BASE-T
TO
10BASE-FL/FOIRL
MEDIA ADAPTER
WITH
LANVIEW
®
POWER
INPUT
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RX
TX
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The Complete Networking Solution
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