3Com 3C12065 Installation And Use - page 2
Preparation
Before you install the Transceiver
Module, you must remove the module,
hub or repeater from the network and
all power sources. Modules must be
removed from the Chassis (you do not
need to power down the chassis). The
3C18146 Expansion Module must be
separated from its mother module. See
the relevant User Guide or ‘How to
Install and Use...’ manual.
Remove the blanking plate from the
module, hub or repeater which is to
receive the Transceiver Module. The
relevant manual will tell you where to
find the plate.
Keep the blanking plate in a safe place
so that it can be replaced when the
Transceiver Module is removed.
Installing in a Stackable Hub or Repeater
For FMS Stackables and Repeaters,
hold the mounting panel with the pin
header side of the board down.
For FMS II Stackables, hold the
mounting panel with the pin header
side of the board up.
Insert the edge connector end of the
Transceiver Module into the rear of the
mother device.
Slide the Transceiver Module in
carefully to engage in the slot and
push it fully home.
Fix the mounting panel of the Transceiver
Module to the back panel using the two
screws from the blanking plate.
Installing on an ECS or MSH Module
Position the Module on a flat surface
with the 16-way socket facing up. Hold
the Transceiver Module by the
mounting panel and board edge with
the header pins facing down. Pass the
board of the Transceiver Module
through the cut-out in the front panel.
Align the socket on the Module with
the pins on the Transceiver Module
and push down firmly to connect.
With the 3C18146 Expansion Module,
you align the header and pins and
press gently to engage the pins. Turn
the pair over to rest on the Transceiver
Module and press firmly close to the
header to complete connection.
Fix the mounting panel of the Transceiver
Module to the module using the two
screws from the blanking plate.
Connection
Once the Transceiver Module is in
place, connect two fiber optic cables
(with correct connections) to the
Transceiver’s connectors.
Align the keyways with the bayonets,
push and twist until locked.
Take care to keep the ends of the
connectors clean. Wipe with a
tissue moistened with ethanol if
necessary.
The other end of the fiber cables
should be connected to the opposite
ports (i.e. Rx to Tx and Tx to Rx if the
cables are marked) of a remote FOIRL
device. If the cables are not marked,
just connect them to a port pair. With
power supplied to the devices, verify
that the cables are connected to the
correct port by checking that the
‘Rxloss’ LED of the Transceiver
Module is not lit. If the LED is lit,
change the fiber cables over to the
opposite ports.
The ‘Rxloss’ LED at the Transceiver
Module will now be extinguished. If
the LED is lit, it indicates that there is
no optical input from the fiber optic
cable. If either or both the LEDs remain
illuminated, check the following:
•
Fiber cables connected Tx to Rx
/Rx to Tx
•
Continuity of the fiber cable
•
Cleanliness of the connectors
•
The remote unit is powered on.
3
Operation
Re-install the mother device into its
chassis and/or network and power up.
The Transceiver Module will operate
correctly once power is applied.
Optical Safety
Under most normal viewing
conditions there is no eye hazard from
the Tx LED. It is recommended
however, that the LED is not viewed
through any magnifying device, whilst
powered on.
Transceiver Module Fails to Operate
If the Transceiver Module powers up
but no communication is possible,
refer to the supplier of your 3Com
Fiber Optic Transceiver Module for
further advice.
Disclaimer
Information in this document is subject to
change without notice and does not represent a
commitment on the part of 3Com. 3Com
reserves the right to revise or change this
document without obligation of 3Com to notify
any person of the revisions or changes.
Information contained in this document is
believed to be accurate at the time of
publication but no liability whatsoever can be
accepted by 3Com arising out of any use of this
information.
3Com
and LinkBuilder are registered
trademarks and FMS, FMS II and
MSH
are trademarks of the 3Com
Corporation.
ST
is a registered trademark of AT&T.
Document No: DUA1206-5AAA02
Revision: 00
Issued: February 1995
© 1995 3Com Ireland
Radio Frequency Interference Statement
This equipment has been tested with a class A
computing device and has been found to comply
with part 15 of FCC Rules. Operation in a
residential area may cause unacceptable
interference to radio and TV receptions requiring
the operator to take whatever steps are necessary
to correct the interference.
This digital apparatus does not exceed the Class
A limits for radio noise emissions from digital
apparatus as set out in the interference-causing
equipment standard entitled "Digital
Apparatus", ICES-003 of the Department of
Communications.
Cet appareil numérique respecte les limites de
bruits radioélectriques applicables aux appareils
numériques de Classe A prescrites dans la
norme sur le matériel brouilleur : "Appareils
Numériques", NMB-003 édictée par le ministre
des Communications.
Standards
The 3Com Fiber Optic Transceiver Module has
been designed to comply with the following
standards:
Functional
PLS & AUI Specification ISO
8802.3 Sect. 7
Safety
UL 478, EN 60950, CSA 22.2
R.F.I.
FCC Part 15 (Class A),
VDE 0871 B
Environmental
IEC68
Page 2
Page 3
!