100Mbps Intelligent “redundant twister” Modules:
LH7731A-RTX RJ-45 to Redundant RJ-45 _______________ 100m/100m
LH7731A-RFXSC RJ-45 to Redundant FX multimode SC ____ 100m/2km
LH7731A-RFXSCSM RJ-45 to Redundant FX singlemode SC 100m/15km
LH7731A-RFXST RJ-45 to Redundant FX multimode ST ____ 100m/2km
LH7731A-RFXSTSM RJ-45 to Redundant FX singlemode ST _ 100m/15km
10Mbps Intelligent “redundant twister” Module:
LH7111A-TP RJ-45 to Redundant RJ-45 ________________ 100m/100m
These modules incorporate three ports: a MAIN, a PRIMARY and a
SECONDARY port. Full redundant data paths are provided between the
PRIMARY and the SECONDARY ports.
LED Operation:
• PWR: normal operation
• SW: SECONDARY port active at some point; functions in
Dynamic Recovery Mode only
• SECONDARY: port is active (PRIMARY is inactive)
• (MAIN) LK: valid link indication
• (MAIN) AT: receiving data
• (PRIMARY) LK: valid link indication
• (PRIMARY) AT: receiving data
• (SECONDARY) LK: valid link indication
• (SECONDARY) AT: receiving data
MDI-II to MDI-X Switch: MDI-II (default)
DIP Switch Settings:
• TX Switch UP: data from the MAIN port is transmitted simultaneously
on the PRIMARY and SECONDARY ports; data from the active port
(PRIMARY or SECONDARY) is transmitted on the MAIN port. NOTE:
the Link Switch must also be UP in order to send data out the inactive port.
• TX Switch DOWN (default): data from MAIN port is transmitted on
active port only.
• AUTO Switch UP: module automatically reverts back to the PRIMARY
port when the primary link is re-established.
• AUTO Switch DOWN (default): once the SECONDARY port has become
active, the module will not revert back to the PRIMARY port when the
primary link is re-established, unless the SECONDARY link is absent.
100Mpbs TX-to-FX Intelligent “twister” Modules:
LH7131A-SXSC RJ-45 to SX multimode SC _____________ 100m/300m
LH7131A-SXST RJ-45 to SX multimode ST _____________ 100m/300m
LH7131A-SC RJ-45 to FX multimode SC ________________ 100m/2km
LH7131A-SMSC RJ-45 to FX singlemode SC ____________ 100m/15km
LH7131A-ST RJ-45 to FX multimode ST ________________ 100m/2km
LH7131A-SMST RJ-45 to FX singlemode ST ____________ 100m/15km
LH7131A-PSC RJ-45 to FX singlemode SC _____________ 100m/40km
These modules provide high-speed transparent integration of
100BASE-TX and 100BASE-FX segments.
LED Operation:
• PWR: normal operation
• LK: satisfactory receive link status on respective port
• AT: receiving data
MDI-II to MDI-X Switch: MDI-II (default)
Jumper Settings: A jumper switch configures the Link Loss Carry
Forward (LLCF) function.
• To enable LLCF: connect pins 1&2
• To disable LLCF: connect pins 2&3 (default)
100Mbps SM-to-MM Intelligent “twister” Modules:
LH7131A-SCSC FX multimode SC to FX singlemode SC ___ 2km/15km
LH7131A-SCST FX multimode SC to FX singlemode ST ___ 2km/15km
LH7131A-STSC FX multimode ST to FX singlemode SC ___ 2km/15km
LH7131A-STST FX multimode ST to FX singlemode ST ____ 2km/15km
These modules provide seamless integration between higher bandwidth
singlemode and multimode fiber optic segments.
LED Operation:
• PWR: normal operation
• LK: satisfactory link status on respective port
• AT: receiving data
Jumper Settings: A jumper switch configures the Link Loss Carry
Forward (LLCF) function.
• To enable LLCF: connect pins 1&2
• To disable LLCF: connect pins 2&3 (default)
10Mbps Thinnet Coaxial Intelligent “twister” Module:
LE7111A-BNC RJ-45 to BNC ________________________ 100m/185m
This module provides twisted-pair to Thinnet coax segment integration.
LED Operation:
• PWR: normal operation
• LK: satisfactory receive link status on TP port
• AT: receiving data
• COL: detection of collision condition
MDI-II to MDI-X Switch: MDI-II (default)
Jumper Settings: A jumper is used to set either internal or external
termination of the BNC port.
• To enable internal 50
Ω
termination: connect pins 1&2
• To enable use of external termination: connect pins 2&3 (default)
RJ-45
BNC
Jumper JP4 Termination
JP4
3
1
RJ-45
F/O ST/SMA/SC
LLCF
3 2 1
10Mbps F/O Intelligent “twister” Modules:
LE7111A-FSC RJ-45 to FL multimode SC ________________ 100m/2km
LE7111A-FST RJ-45 to FL multimode ST ________________ 100m/2km
LE7111A-SFST RJ-45 to FL singlemode ST ______________ 100m/8km
LE7111A-FSMA RJ-45 to FL multimode SMA ____________ 100m/2km
These modules provide transparent integration of 10BASE-T and
10BASE-FL segments.
LED Operation:
• PWR: normal operation
• LK: satisfactory receive link status on respective port
• AT: receiving data
MDI-II to MDI-X Switch: MDI-II (default)
Jumper Settings: A jumper switch configures the Link Loss Carry
Forward (LLCF) function.
• To enable LLCF: connect pins 1&2
• To disable LLCF: connect pins 2&3 (default)
RJ-45
DIP Switches
F/O SC (ST)
F/O SC (ST)
DIP Switches
RJ-45
RJ-45
RJ-45
1
2
3
4
5
RED
LLCF
LINK
AUTO
TX
1
2
3
4
5
RED
LLCF
LINK
AUTO
TX
RJ-45
F/O SC
RJ-45
F/O ST
LLCF
3
2
1
LLCF
3
2
1
F/O SC
F/O SC
F/O SC
F/O ST
LLCF
3
2
1
LLCF
3
2
1
• LINK Switch UP: module sends link on both the PRIMARY and SECOND-
ARY ports; the end station connected to the module sees a valid link state.
• LINK Switch DOWN (default): module sends link on the active port only;
the end station connected to the module sees a valid link state only if the
port on the module is active.
• LLCF Switch UP: Link Loss Carry Forward is enabled.
• LLCF Switch DOWN (default): Link Loss Carry Forward is disabled.
• RED Switch UP (default): redundancy is enabled; Operates in Dynamic
Recovery Mode (DRM).
• RED Switch DOWN: redundancy is disabled; Network Select Mode (NSM)
is enabled. NOTE: In this mode the reset push button toggles the active
port between A and B for each switch closure. The AUTO switch sets the
initial active port on power up: UP for SECONDARY; DOWN for
PRIMARY. The SW LED remains OFF in NSM.
DIP switches can be managed with console commands or with NetBeacon
™
Management Software. Refer to the Intelligent Media Converter
™
Command
Line Interface Guide, or the NetBeacon
™
Management Software
Installation & User Guide for software management information. For more
information on the Intelligent “redundant twister” modules, refer to the
Intelligent Media Converter “redundant twister”
™
Installation & User
Guide.
LE7501A Management Module
Connected to the modules in the chassis via the backplane, this SNMP
agent reports individual board status to the network management software.
TP Data Rate: 10Mbps half-duplex; 20Mbps full-duplex
LED Operation:
• (TP) LK: link present
• (TP) AT: link present and packet received
• PWR: power supply present and ON
• (Console) A: power supply A present and ON
• (Console) B: power supply B present and ON
• (Console) R: system is operational
• (Console) ER: indicates system diagnostics or boot failure
PC Terminal Session Parameters:
9600 Baud / 8 data bit / 1 stop bit / No Parity / No Flow Control
Refer to the Intelligent Media Converter
™
LE7500A Installation & User
Guide for information on booting the LE7501A Management Module. Refer
to the Intelligent Media Converter
™
Command Line Interface Guide for
the software commands.
IMPORTANT: When setting DIP Switches: UP is furthest from the circuit board.
DOWN is closest to the circuit board.
NOTE:
Link Loss Carry Forward (LLCF) functionality is incorporated on all intelligent twister modules with the exception of the LE7111A-BNC
module. Refer to the
Intelligent Media Converter
™
LE7500A Installation & User Guide
for a complete description.
RJ-45
DB-9
JP2
JP3
JP1
MGT-10
LK
AT
C
O
N
S
O
L
E
T
P
PWR
A
B
R
ER
