Black Box LMC5112C Manual

TX/SSFX Single-Strand Fiber
SNMP-Manageable Media
Conversion Modules
LMC5112C — LMC5113C — LMC5114C LMC5115C — LMC5116C — LMC5117C
Dual wavelength, single-strand fiber TX/SSFX Media Converters from Black
Box perform a 100 Mbps Fast Ethernet copper to fiber conversion and allow
two wavelengths to share one fiber strand — Full-Duplex data travels on dif-
ferent wavelengths (1310 nm and 1550 nm) — doubling the capacity of
installed fiber. TX/SSFX Modules are IEEE 802.3 100Base-TX and 100Base-FX
Fast Ethernet compliant and install in any SNMP-manageable High Density
Media Converter System II chassis or any SNMP Manageable Media Converter
chassis from Black Box. Refer to your chassis' manual for more information.
LMC5112C TX/SSFX SM-SC Matched Module Set contains the following
two modules:
LMC5113C: TX/SSFX SM-SC (1310xmt/1550rcv)
LMC5114C: TX/SSFX SM-SC (1550xmt/1310rcv)
LMC5115C TX/SSFX SM/PLUS-SC Matched Module Set contains the
following two modules:
LMC5116C: TX/SSFX SM/PLUS-SC (1310xmt/1550rcv)
LMC5117C: TX/SSFX SM/PLUS-SC (1550xmt/1310rcv)
N O T E
These modules must be used in pairs, with one TX/SSFX Module on one end of the conversion and
another TX.SSFX module, or another single-strand fiber product from Black Box, at the other end.
Configuration Instructions
Following are instructions for configuring both managed (via an SNMP-
compatible management application like iView) and unmanaged modules.
N O T E
Management software will override any hardware settings (e.g., jumper, switch, etc.), so you MUST config-
ure a module that will be managed via the software. Until a module installed in a managed chassis is con-
figured via the software, the module (and its LEDs) may not work properly.
M M
A N A G E D O D U L E S
In order to manage one or more TX/SSFX Modules, an SNMP agent must be
present: Media Converter System II chassis include embedded management;
other SNMP-manageable media converters require a Master Module. When
configuring managed modules, install the module first (see page 4 for instruc-
tions), then configure it using the management software Within iView for
iMediaConverters (iView for iMc), troubleshooting and other features are con-
figured in the Module Detail section under the picture of the module. See the
iView for iMc online help file for more information.
I N S T A L L A T I O N
When testing, Black Box recommends you test your module first in an unmanaged environment. To do
this, turn the SNMP management switch to OFF on an Media Converter System II chassis, or remove the
management module from other SNMP-manageable chassis. Follow the unmanaged configuration
instructions, then install the module, connect the cables and test the LEDs. When finished, reactivate
management and configure the unit via the software.
1
U
N M A N A G E D
Before installing, TX/SSFX Modules may be configured for LinkLoss and Auto-
Negotiation. The diagram below shows the location of the DIP switch and
jumpers on TX/SSFX Modules.
S
WITCH
1
2 - 8
J
UMPER
JP2
JP3
Twisted Pair Crossover/Pass-Through Connection
TX/SSFX Modules include AutoCross, a feature which automatically selects
between a crossover workstation or pass-through/repeater hub connection
depending on the connected device. Note: a MDI/MDI-X switch is not required.
About FX and TX LinkLoss
TX/SSFX Modules include the following troubleshooting features:
• FX LinkLoss
These are advanced troubleshooting features that can help you locate "silent
failures" on your network. However, it is vital that you understand exactly how
LinkLoss works, and how it will react in your network configuration, before
attempting to install the enclosed module(s).
T I P
M
O D U L E S
JP3
TX LinkLoss
Jumper
TX/FX TX/FX
Linkloss Linkloss
Enabled Enabled Disabled Disabled
OFF ON
(Default) (Default)
JP2
FX LinkLoss
Jumper
DIP Switch and Jumper Settings for TX/SSFX Modules
F
UNCTION
Auto-Negotiation
Factory Configured -- DO NOT CHANGE
F O
UNCTION N
FX LinkLoss 1 - 2
TX Linkloss 1 - 2
• TX LinkLoss
Installing modules without understanding the effects of LinkLoss can cause perfectly
functioning units to appear flawed or even dead.
2
A L I
B O U T I N K N T E G R I T Y
During normal operation, link integrity pulses are transmitted by all point-
to-point Ethernet devices. When a Black Box media converter receives valid
link pulses, it knows that the device to which it is connected is up and send-
ing pulses, and that the copper or fiber cable coming from that device is
intact. The appropriate "LNK" (link) LED is lit to indicate this.
The Black Box media converter also sends out link pulses from its copper
and fiber transmitters, but normally has no way of knowing whether the cable
to the other device is intact and the link pulses are reaching the other end.
TX LinkLoss and FX LinkLoss allows this information to be obtained, even when
physical access to a remote device (and its link integrity LED) is not available.
W I F X L
H A T S I N K
When a fault occurs on the fiber segment of a conversion, FX LinkLoss
detects the fault and passes this information to the twisted pair segment. If a
media converter is not receiving a fiber link, FX LinkLoss disables the trans-
mitter on the media converter's twisted pair port. This results in a loss of link
on the device connected to the twisted pair port.
W I T X L
H A T S I N K
When a fault occurs on the twisted pair segment of a conversion, TX
LinkLoss detects the fault and passes this information to the fiber segment. If
D a media converter is not receiving a twisted pair link, TX LinkLoss disables the
EFAULT
transmitter on the media converter's fiber port. This results in a loss of link
OFF
on the device connected to the fiber port.
VARIES
O
FF
F X
A N D
2 -3
Feature
2 -3
FX LinkLoss
TX LinkLoss
C
O N F I G U R I N G A N D
TX/SSFX Modules ship from the factory with TX LinkLoss and FX LinkLoss
disabled. See the configuration chart on page 2 for instructions on enabling/
disabling these features. In a typical main site to remote site media conver-
sion, Black Box recommends you enable your media converters' trou-
bleshooting features as follows:
• FX LinkLoss: Main Site
This will ensure that any faults, no matter where they occur, can be
detected by an administrator located at the main site.
Auto-Negotiation on TX/SSFX Modules
TX/SSFX Modules include the feature Auto-Negotiation.
Negotiation is enabled, the module negotiates as a 100 Mbps Full-Duplex
device; if the device the TX/SSFX Module is connected to can operate at 100
Mbps Full-Duplex, a link will be established. If the twisted pair port on the
other device does not have the ability to auto-negotiate, or if a 100 Mbps
Half-Duplex connection is desired, Auto-Negotiation on the TX/SSFX Module
must be disabled. Half- and Full-Duplex settings must be manually set and
match on both devices the TX/SSFX Module is connected to.
L ?
O S S
L ?
O S S
T X L L C
I N K O S S O M P A R E D
Fault Location Disabled LEDs
Fiber Twisted Pair
Twisted Pair Fiber
U T X F X L L
S I N G A N D I N K O S S
• TX LinkLoss: Remote Site
When Auto-
3