Black Box LE7500A Installation & User Manual
Black Box LE7500A is an Intelligent Media Converter that can be used to connect different types of network devices. It has a variety of features that make it a versatile and powerful tool for network administrators.
The LE7500A can be used to connect 10Mbps or 100Mbps Ethernet devices to fiber optic cables. It can also be used to connect twisted-pair Ethernet devices to thinnet coaxial cables. This makes it a great choice for connecting devices in different locations or for connecting devices that use different types of cabling.
The LE7500A also has a number of advanced features that make it a great choice for mission-critical applications. It supports redundant power supplies, so that it can continue to operate even if one of the power supplies fails. It also has a built-inSNMP agent, which allows it to be managed remotely.
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Any trademarks or trade names that appear in this document are the property of their respective owners.
The information contained in this document is assumed to be correct and current. The manufacturer is not responsible for errors or omissions and reserves the right to change specifications at any time without notice.
JULY 1999
LE7500A-12
LE7500A-12P
LE7500A-16
LE7500A-17
I
NTELLIGENT
M
EDIA
C
ONVERTER ™
LE7500A M
ODULES
100 BASE
“redundant twister”™
100 BASE
PWR
PWR
MAIN
LK
T
X
R
X
RESET
SECONDARY
SW
LK
AT
R
X
T
X
PRIMARY
AT
LK
AT
R
X
M
M
T
X
R
X
S
M
T
X
LK
AT
LK
AT
T
X
R
X
10 BASE
PWR
TP
LK
AT
FL
LK
AT
R
X
M
M
T
X
R
X
S
M
T
X
100 BASE
PWR
100 BASE
“redundant twister”™
LK
AT
LK
AT
PWR
MAIN
LK
T
X
R
X
RESET
SECONDARY
SW
LK
AT
R
X
T
X
PRIMARY
AT
LK
AT
10 BASE
PWR
TP
LK
AT
BNC
COL
100 BASE
PWR
R
X
M
M
T
X
R
X
S
M
T
X
LK
AT
LK
AT
R
X
S
M
T
X
M
T
X
R
X
M
100 BASE
PWR
LK
AT
LK
AT
R
X
X
T
10 BASE
PWR
TP
LK
AT
FL
LK
AT
T
X
R
X
100 BASE
PWR
TX
LK
AT
100 BASE
PWR
TX
LK
AT
100 BASE
PWR
TX
LK
AT
FX
LK
AT
T
X
R
X
FX
LK
AT
T
X
R
X
FX
LK
AT
T
X
R
X
10 BASE
PWR
TP
LK
AT
100 BASE
PWR
TX
LK
AT
FL
LK
AT
R
X
T
X
FX
LK
AT
O
L
E
N
S
C
O
T
P
MGT-10
LK
AT
PWR
A
B
R
ER
S
E
C
P
R
I
I
N
M
A
100 BASE
PWR
SW
RESET
LK
AT
LK
AT
LK
AT
SEC
10 BASE
PWR
TP
LK
AT
BNC
COL
T
X
R
X
10 BASE
PWR
TP
LK
AT
FL
LK
AT M
T
X
R
X
S
R
X
M
M
T
X
100 BASE
PWR
100 BASE
PWR
LK
AT M
T
X
R
X
M
LK
AT M
T
X
R
X
S
LK
AT
LK
AT
T
X
R
X
100 BASE
PWR
TX
LK
AT
FX
LK
AT
T
X
R
X
100 BASE
TX
FX
PWR
100 BASE
“redundant twister”™
100 BASE
“redundant twister”™
LK
AT
LK
AT
MAIN
T
X
R
X
RESET
SECONDARY
PWR
SW
LK
AT
R
X
T
X
PRIMARY
LK
AT
LK
AT
PWR
MAIN
LK
T
X
R
X
RESET
SECONDARY
SW
LK
AT
R
X
T
X
PRIMARY
AT
LK
AT
O
L
E
N
S
C
O
T
P
MGT-10
LK
AT
PWR
A
B
R
ER
Intelligent Media Converter™ 7500
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN
100-240V
50/60Hz
2A
Intelligent Media Converter™ 7500
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN
100-240V
50/60Hz
2A
Specifications: 100Mbps Intelligent “twister” Modules
Data Rate
Bit Delay
____________ 100Mbps half-duplex; 200Mbps full-duplex
_________________________________________ < 40 bits
Twisted-Pair Interface
Connector __________________________ Shielded RJ-45, 8-pin jack
Impedence ________________________________ 100 Ohms nominal
Signal Level Output (differential) ______________________ .95 to 1.05V
Signal Level Input _____________________________ 350mV minimum
Supported Link Length ____________________________________ 100m
Cable Type ___________________________________ Category 5 UTP
Multimode F/O Interface
Connector ________________________________________ ST or SC
RX Input Sensitivity _______________________ -31 dBm peak minimum
Output Power ___________________ -14 dBm to -23.5 dBm (50/125
µ m)
___________________ -14 dBm to -20 dBm (62.5/125
µ m)
Supported Link Length _______________________ up to 2km full duplex
Cable Type ____________________ 50/125, 62.5/125, 100/140
µ m F/O
Singlemode F/O Interface
Connector ________________________________________ ST or SC
RX Input Sensitivity _______________________ -31 dBm peak minimum
Output Power ______________________ -8 dBm to -15 dBm (9/125
µ m)
Supported Link Length ______________________ up to 15km full duplex
Cable Type ________________ 8.3/125, 8.7/125, 9/125, 10/125
µ m F/O
Singlemode F/O Interface — extended distance support
Connector _____________________________________________ SC
RX Input Sensitivity ___________________________ -35 dBm minimum
Output Power ________________________ 0 dBm to -5 dBm (9/125
µ m)
Supported Link Length ______________________ up to 40km full duplex
Cable Type ________________ 8.3/125, 8.7/125, 9/125, 10/125
µ m F/O
Installation & User Guide
© Copyright 1999. Black Box Corporation. All rights reserved.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746
5660-750002-002 A
8/99
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: 724-746-5500 (fax 724-746-0746)
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
Specifications: 10Mbps Intelligent “twister” Modules
Data Rate
Bit Delay
______________ 10Mbps half-duplex; 20Mbps full-duplex
__________________________________________ < 5 bits
Twisted-Pair Interface
Connector __________________________ Shielded RJ-45, 8-pin jack
Impedence ________________________________ 100 Ohms nominal
Signal Level Output __________________________________ 2.0 to 2.8V
Signal Level Input _____________________________ 350mV minimum
Supported Link Length ____________________________________ 100m
Cable Type _____________________________ Category 3, 4 or 5 UTP
Multimode F/O Interface
Connector ______________________________________ ST or SMA
RX Input Sensitivity ___________ 10BASE-FL -32.5 dBm peak minimum
Output Power _________________ -21.8 dBm to -16.8 dBm (50/125
µ m)
___________________ -19 dBm to -14 dBm (62.5/125
µ m)
Supported Link Length _______________________ up to 2km full duplex
Cable Type ____________________ 50/125, 62.4/125, 100/140
µ m F/O
Singlemode F/O Interface
Connector _____________________________________________ ST
RX Input Sensitivity ___________ 10BASE-FL -32.5 dBm peak minimum
Output Power _____________________ -17 dBm to -23 dBm (9/125
µ m)
Supported Link Length _______________________ up to 8km full duplex
Cable Type ________________ 8.3/125, 8.7/125, 9/125, 10/125
µ m F/O
Thinnet Coax Interface
Connector ___________________________________ BNC receptacle
Internal Transceiver _________________________________ IEEE 802.3
Termination _____________________________ User Selectable Jumper
Supported Link Length ________________________________ up to 185m
Cable Type _______________________________ RG-58 coaxial cable
Installing the Intelligent Media Converter Modules
• The LE7501A Management Module can only be installed in the far right-hand slot. See diagram.
• Intelligent “redundant twister” ™ modules have DIP switches that must be set prior to installation. Refer to the Intelligent Media Converter
“redundant twister” Module Installation & User Guide for more details.
• Intelligent “redundant twister” F/O modules require two slots.
• Modules must be firmly secured to the chassis before network connections are made.
Follow the simple steps outlined below:
1. Grasp a module by the front panel as shown and insert into a slot making sure that both the top and bottom of the card edges are lined up with the top and bottom card guides.
2. Slide the module in until the top and bottom edges of the front panel are flush and even with the top and bottom edges of the chassis and secure to the chassis by turning the thumb screw clockwise until snug.
Slot for Management Module
100 BASE
“redundant twister”
™
MAIN
PWR
T
X
RESET
SECONDARY
SW
LK
AT
T
X
PRIMARY
LK
AT
LK
AT
R
X
S
M
T
X
R
X
M
M
T
X
100 BASE
PWR
LK
AT
10 BASE
PWR
TP
LK
AT
LK
AT
T
X
R
X
FL
LK
AT
R
X
M
M
R
X
S
M
T
X
100 BASE
PWR
100 BASE
“redundant twister” ™
LK
AT
LK
AT
PWR
MAIN
LK
RESET
SECONDARY
SW
R
X
LK
AT
R
X
PRIMARY
AT
LK
AT
10 BASE
PWR
100 BASE
PWR
100 BASE
PWR
TP
BNC
COL
LK
AT
R
X
M
M
T
X
M
T
X
R
X
S
LK
AT
R
X
M
M
X
T
LK
AT
R
X
S
M
X
T
LK
AT
LK
AT
T
X
R
X
10 BASE
PWR
TP
LK
AT
FL
LK
AT
T
X
R
X
100 BASE
PWR
TX
LK
AT
FX
LK
AT
R
X
X
T
100 BASE
PWR
TX
LK
AT
FX
LK
AT
R
X
X
T
100 BASE
PWR
TX
LK
AT
FX
LK
AT
R
X
T
X
10 BASE
PWR
TP
LK
AT
100 BASE
PWR
TX
LK
AT
FL
LK
AT
R
X
T
X
FX
LK
AT
T
P
MGT-10
LK
AT
O
L
E
N
S
C
O
PWR
A
B
R
ER
Card Guide Slot for Management Module
E
C
P
R
M
A
100 BASE
PWR
SW
RESET
LK
AT
N
LK
AT
LK
AT
SEC
10 BASE
PWR
TP
LK
AT
BNC
COL
T
X
R
X
10 BASE
PWR
TP
LK
AT
FL
100 BASE
LK
AT M
T
X
R
X
S
R
X
M
M
T
X
PWR
100 BASE
LK
AT M
T
X
R
X
M
LK
AT M
T
X
R
X
S
PWR
LK
AT
LK
AT
T
X
R
X
100 BASE
PWR
TX
LK
AT
FX
LK
AT
T
X
R
X
100 BASE
PWR
TX
LK
AT
FX
LK
AT
100 BASE
“redundant twister”
™
MAIN
T
X
R
X
PWR
RESET
SECONDARY
SW
LK
R
AT
X
T
X
PRIMARY
LK
AT
LK
AT
100 BASE
“redundant twister”
™
RESET
MGT-10
LK
T
P
MAIN
PWR LK
SW
100 BASE
“redundant twister”™
SECONDARY
R
X
T
X
LK
R
X
AT
RESET
T
X
SECONDARY
PWR
SW
R
X
T
X
PRIMARY
LK
AT
R
X
T
X
LK
MAIN
AT
N
S
C
O
O
PRIMARY
E
LK
AT
LK
AT
PWR
AT
A
B
R
ER
Intelligent Media Converter ™ 7500
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN
100-240V
50/60Hz
2A
Intelligent Media Converter ™ 7500
DISCONNECT ALL POWER
SOURCES BEFORE SERVICING
AC IN
100-240V
50/60Hz
2A
IMPORTANT!
Thumb Screw
Tighten thumb screw to secure each module firmly to chassis before making network connections.
Blank Panel
Card 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.
T
P
MGT-10
LK
AT
JP2
RJ-45
JP3
JP1
DB-9
C
O
N
S
O
L
E
PWR
A
B
R
ER
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.
• 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.
IMPORTANT: When setting DIP Switches: UP is furthest from the circuit board.
DOWN is closest to the circuit board.
DIP Switches
RJ-45
RJ-45
RJ-45
DIP Switches
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
F/O SC (ST)
F/O SC (ST)
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)
LLCF
3
2
1
RJ-45
LLCF
3
2
1
F/O SC
10Mbps Thinnet Coaxial Intelligent “twister” Module:
RJ-45
F/O ST
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)
JP4 3 1
Jumper JP4 Termination
RJ-45
BNC
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)
LLCF
3
2
1
F/O SC
LLCF
3
2
1
F/O SC
F/O ST
F/O SC
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)
3 2 1
LLCF
RJ-45
F/O ST/SMA/SC
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