Page 1
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 pulsestretched 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
X
||
SN
RX
TX
P
W
R
X
M
T
R
C
V
C
L
N
L
N
K
The Complete Networking Solution
F
L
N
K
Page 2
maximum segment length can be determined by
measuring the segment attenuation and comparing it
to the worst case budget.
Fiber Optic Segment Attenuation
At an 850-nm wavelength, the segment attenuation
can be no more than the following:
• 13.0 dB for 50/125 µ m cable
• 16.0 dB for 62.5/125 µ m cable
• 19.0 dB for 100/140 µ m cable
OPERATING SPECIFICATIONS
Cabletron Systems reserves the right to change these
specifications at any time without notice.
Fiber Optic Interface
Fiber Optic Transmitter Power
Power Supply
Receive Sensitivity: -29.5 dBm worst case
Peak Input Power: -8.2 dBm worst case
Bit Error Rate: Better than 10
-9
error rate
Transmitter Peak
Wavelength: 820 nm typical
790 nm rate minimum
860 nm maximum
Spectral Width: 75 nm maximum
Rise Time: 10 nsec maximum
Fall Time: 10 nsec maximum
50/125 µ m: -13.0 dBm
16.5 dBm worst case budget
62.5/125 µ m: -10.0 dBm
19.5 dBm worst case budget
100/140 µ m: -7.0 dBm
22.5 dBm worst case budget
Note: The transmitter power and receive sensitivity
levels are peak power levels. To convert to average
power levels, subtract 3 dBm.
Input power, USA: 100 to 125 Vac, 50 to 60 Hz
Input power, UK: 220 to 240 Vac, 50Hz
Input power, Europe: 200 to 220 Vac, 50 Hz
Output power: 0.8 A at 12 Vdc
RJ45 Port
The TPFOT-2 adapter has a switch to set the RJ45 pin
configuration for crossover ( X ) or straight-through ( = )
operation as shown below.
Operating Environment
Operating Range: 5˚ to 40˚C (41˚ to 104˚F)
Heat Output: 17 Btu/hr
Humidity Range: 5 to 95% (non-condensing)
Storage Range: -30˚ to +80˚C (-22˚ to 176˚F)
Safety
Designed in accordance with UL1950, CSA 22.2
No. 950, and EN 60950.
Emissions
Meets the requirements of EN 55022 Class A; FCC
Part 15, Class A; and VCCI, Class I emission limits.
Immunity
Meets the requirements of EN 50082-1, including
Electrostatic Discharge (IEC 801-2), Radiated
Susceptibility (IEC 801-3), and Electric Fast Transient
(IEC 801-4).
Note : It is the responsibility of the person who sells the
system to which the TPFOT-2 adapter will be a part to
ensure that the total system meets allowed limits of
conducted and radiated emissions.
INSTALLATION
Unpack the TPFOT-2 adapter and verify that the
following items were received.
• One TPFOT-2 10BASE-T to 10BASE-FL/FOIRL
Extended Media Adapter
• One wall mount transformer with power cord
• One 1.5-inch x 3-inch Velcro strip
• Two 6-inch tie wraps
• Two cable mounts
Mounting the TPFOT-2 Adapter
Use the adhesive backed Velcro strips to attach the
TPFOT-2 adapter to a convenient mounting surface.
Connecting and Applying Power
Caution: Do not use a power cord/converter other
than the one shipped with the TPFOT-2 adapter. Not
all converters supply the same voltage and current.
Using the wrong converter can damage the adapter.
The TPFOT-2 adapter has an ac-to-dc converter.
Connect the TPFOT-2 adapter to an appropriate ac
power source. The TPFOT-2 LANVIEW PWR indicator
should light, indicating that the TPFOT-2 adapter is
receiving power and is ready for operation.
Attaching the Fiber Optic Cables
Connect one fiber optic cable from the TPFOT-2 TX
port to the Ethernet device RX port. Connect another
fiber optic cable from the TPFOT-2 RX port to the
Ethernet device TX port.
Attaching a Twisted Pair Cable
The TPFOT-2 adapter has a switch to select either a
crossover (X) or straight-through (=) pin configuration
for the RJ45 port. When attaching a twisted pair cab le,
check the pin configuration of the RJ45 crossover
connector on the device to be connected. Make sure
that the twisted pair TX and RX signal pairs connect
as follows:
Cable Strain Relief
Secure the data cables and the power cord to reduce
the possibility of network interruption. The TPFOT-2
comes with adhesive backed mounting brackets and
tie wraps for securing the TPFOT-2 cables.
Note: The TPFOT-2 power source is to be certified
for use in the country of installation with a standard
(SELV) output of 12 Vdc, and capable of providing a
minimum output of 800 mA (connector polarity: center pin positive, sleeve negative). The output connector is to be compatible with TOTAL POWER or
MORFOR RJ-01-E connectors.
Pin 1 RX+
Pin 2 RXPin 3 TX+
Pin 4 No Connection
Pin 5 No Connection
Pin 6 TXPin 7 No Connection
Pin 8 No Connection
123456 87
Pin 1 TX+
Pin 2 TXPin 3 RX+
Pin 4 No Connection
Pin 5 No Connection
Pin 6 RXPin 7 No Connection
Pin 8 No Connection
X
=
RX+
RXTX+
TX-
TX+
TXRX+
RX-
Loading...