Omnitron Systems Technology iConverter GX/T - Manual

iConverter ® GX/T User Manual
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OVERVIEW
The iConverter GX/T provides 10/100/1000BASE-T
UTP to 1000BASE-X Fiber conversion as well as
rate conversion between 10BASE-T, 100BASE-TX,
1000BASE-T and 1000BASE-SX/LX. Models are
available for multimode (MM) and single-mode (SM)
dual fiber, and single-mode single-fiber (SF).
The GX/T UTP port supports Half-Duplex and Full-
Duplex modes and features an automatic crossover
mode for easy attachment to hubs, switches and
workstations.
The GX/T can be used as a standard two-port UTP to
fiber converter. It can also use its two additional 10/100
backplane ports to connect to adjacent modules and
accommodate flexible network configurations. The
iConverter 19-Module, 5-Module or 2-Module Chassis
have backplanes that facilitate connectivity between
adjacent modules.
The GX/T can be used in a managed or unmanaged
application. When managed, it must be installed in a
chassis with an iConverter Network Management Module
(NMM), GX/TM or 10/100M.
ADVANCED FEATURES
The GX/T features Port VLAN and Tag VLAN, which
allow complete control of traffic flow between the front-
plane UTP port, the fiber port and the chassis backplane
ports. The GX/T also features Port Access Control, which
facilitates enabling and disabling of individual ports. It
also supports reporting of MIB statistics.
NOTE: Using the advanced features listed above
requires the use of the Network Management Module
(NMM) and the NetOutlook ™ Management Software
(or third-party SNMP management software) or Telnet.
For more information on using and configuring these
advanced features, please refer to the NetOutlook
Management Software user manual.
PORT STRUCTURE
Using a 4-port switch design, the GX/T features
two front-plane ports (1000Mbps fiber Port 1 and a
10/100/1000 UTP Port 2) and two 10/100 Ethernet
backplane ports (A and B) that can connect to adjacent
modules within the same chassis.
When the GX/T backplane A and B ports are enabled
(using “BPAEN” and “BPBEN” DIP-Switches), they
connect via the chassis backplane to the slots on the
left and right sides of the GX/T module. When another
switch-based module with backplane port connections
(such as a second GX/T or an NMM) is installed in an
adjacent slot, it can be connected via the backplane
to the GX/T to facilitate a multi-module configuration.
GX/T Application Example:
Fig. 1 depicts a chassis with three modules plugged into
three adjacent backplane slots (beginning with an odd
numbered slot). The adjacent slots are connected via the
backplane using the A and B 10/100 links. In this example,
the GX/T in the center slot connects to the slot on its left
using the A link and the slot on its right using the B link.
Fig. 1 In-Band Managed GX/T Application
In this example, the module on the left is a Network
Management Module (NMM), connecting via its A backplane
port to the GX/T, facilitating In-Band management (via the
fiber uplink). The module on the right is a 4-port 10/100 switch
module, connecting via its B link port to the GX/T, facilitating a
1-Port GX/T and a 4-Port 10/100 Ethernet switch with a fiber
uplink configuration. This 3-module configuration provides
an effective 10/100/1000 UTP to 4-Port 10/100 managed
switch with a gigabit fiber uplink configuration.
This example shows how the GX/T can be used
either as a traditional managed or unmanaged media
converter, or to create flexible and effective network
switch configurations.
For more information about individual chassis A and
B backplane links, please refer to the specific chassis
user manual.
Chassis
Backplane
GX/T Module
Internal
10/100/1000
switch chip
Fiber
1000 port
UTP
10/100/1000 port
NMM Module
NMM
front /
back
select
NMM UTP
10 port
4Tx Module
Internal
10/100
switch chip
4-port 10/100 UTP
Switch
“A” Link “B” Link
A Port B Port A Port B Port A Port B Port
Slot 1 (odd) Slot 2 (even) Slot 3 (odd)
LINK MODES
In order to accommodate different user needs, the GX/T
supports five different linking modes (see Fig. 2).
In Link Segment (LS), a port transmits a Link signal
independently of any received Link at any other port.
For example, the UTP transmits a Link regardless of
the fiber receiving a Link [Fig. 2(a) & (b)].
In Link Propagate (LP), a port transmits a Link signal only
when receiving a Link at its other port. For example, the
UTP transmits a Link only when receiving a Link at the
fiber port [Fig. 2(c)].
In Remote Fault Detection + Link Segment (RFD+LS),
the fiber port transmits a Link signal only when receiving
a Link at the fiber port. As a result, fiber faults (no
Link received at the fiber) are looped-back and can be
reported to the network core [Fig. 2(d)].
In Remote Fault Detection + Link Propagate (RFD+LP),
the UTP port transmits a Link signal only when receiving
a Link at the fiber port. The fiber port transmits a Link
signal only when receiving Link signals at both the fiber
port and the UTP port. As a result, fiber faults (no Link
received at the fiber) are propagated forward and looped
back for fault reporting at both the network core and the
customer location [Fig. 2(e)].
NOTE: Connecting two converters with both set to RFD
mode is not supported and will cause a “deadly embrace”
lockup.
LED Lit LED Blinking LED Off
LED Status depends on connected device
Switch 1 Converter A Converter B Switch 2
(a)
LS
Fiber
UTP UTP
Fiber
LS
Switch 1 Converter A Converter B Switch 2
LS
(b)
LS
(c)
Switch 1 Converter A Converter B Switch 2
LP LP
(d)
Switch 1 Converter A Converter B Switch 2
LP RFD+LS
(e)
Switch 1 Converter A Converter B Switch 2
SFD SFD
(f)
Switch 1 Converter A Converter B Switch 2
LP RFD+LP
Fig. 2 GX/T Link Modes
In Symmetrical Fault Detection (SFD), the UTP port
transmits a Link signal only when receiving a Link at
the fiber port. The fiber port transmits a Link signal only
when receiving a Link signal at both the fiber port and
the UTP port. As a result, fiber faults (no Link received
at the fiber) are looped back and can be reported to the
network core. In addition, connecting two back-to-back
converters which are both set to SFD facilitates dual-
loop-back, where fiber faults are reported to both ends
of the network. A blinking fiber link LED on a converter
indicates a fault of the transmit fiber or UTP cables of
that converter [Fig. 3(f)].
NOTE: Converters in SFD mode must be deployed
in pairs.
Fiber set to Auto-Negotiation Mode
When the Fiber is set to Auto-Negotiation Mode, the
device receiving the fault acts as if it is in RFD mode.
Link Segment, Link Propagate and Symmetrical Fault
Detection modes operate in the same manner (refer to
Fig. 2(d), (e) and (f).
NOTE: “Remote Fault Detection” (RFD) is not a valid
mode when the fiber is set to Auto-Negotiation. The user
should select LS, LP or SFD instead.
DIP-SWITCH SETTINGS
Front Panel DIP-Switch Settings
LP
RFD
SFD =
=
=
= Link Propagate
Remote Fault Detect
Symmetrical Fault Detect
Crossover LS
Off
Off
=
=
Link Segment
Straight-Through
Fig. 3 Front Panel DIP-Switches
Link Segment/Link Propagate “LS/LP” DIP-Switch
This DIP-Switch controls the Link Propagate or Link
Segment modes. When the DIP-Switch is in the “LS”
position (factory setting), Link Segment mode is enabled.
In the “LP” position, Link Propagate mode is enabled.
Remote Fault Detection “RFD” DIP-Switch
When in the “RFD” position, the Remote Fault Detection
mode is enabled. Set the board-mounted Port 1
DIP-Switch to Manual Mode “MAN” for this feature.
NOTE: Connecting two converters with both set to
RFD mode is not supported and will cause a “deadly
embrace” lockup.
Symmetrical Fault Detection “SFD” DIP-Switch
When this DIP-Switch is in the “SFD” position, the
Symmetrical Fault Detection mode is enabled. When in
the “Off” position (factory setting), the Symmetrical Fault
Detection mode is disabled.
NOTE: Converters in SFD mode must be deployed
in pairs.
RJ-45 Manual Crossover “= / X” DIP-Switch
When the board-mounted Manual Crossover Enable
DIP-Switch is set to “MANX,” the front panel RJ-45
Manual Crossover Switch is enabled. When connecting
the UTP to a hub or switch, set the front panel switch to
Straight-Through “=” (factory setting). When connecting
to a workstation, set it to Crossover “X.” Only use this
setting with 10T or 100Tx mode.
Port 1 (P1)
Port 2 (P2)
iConverter GX/T Dual Fiber Modules
Fiber
Type
Distance
Connector Type
SC MT-RJ LC
MM 220m / 550m 1 8522-0 8524-0 8526-0
SM 12 km 8523-1 8525-1 8527-1
SM 34 km 8523-2 - 8527-2
SM 80 km 8523-3 - 8527-3
iConverter GX/T Single-Fiber Modules
Fiber /
Connector
Type
Distance Tx: 1310nm,
Rx: 1550nm
Tx: 1550nm,
Rx: 1310nm
SM / SC 20 km 8530-1 8531-1
SM / SC 40 km 8530-2 8531-2
For wide temperature (-40 to 60º C), add a "W" to the end
of the model number. Consult factory for extended
temperature (-40 to 75º C) models.