Omnitron Systems Technology GX/F user manual About this Manual, Overview, Port Structure

iConverter® GX/F User Manual

Port 1 (P1), Gigabit 1000X

Port 2 (P2), Fast Ethernet 100FX

ABOUT THIS MANUAL

This document supports revision “xx/10” of the GX/F. Please refer to the serial number label on the GX/F for the revision number of your product. This revision incorporates the following improvements to the GX/F:

1.Product enhancements now prevent unpredictable behavior under undefined or incompatible DIP-Switch selections.

2.LINK MODES have been increased to include RFD+LS and RFD+LP modes. Improvements to LED behavior have been made to accommodate these new link modes.

OVERVIEW

The iConverter GX/F media converter provides Gigabit 1000X fiber to Fast Ethernet 100FX fiber conversion. It is a member of the modular iConverter product family and supports multimode, single-mode and single-fiber options. The iConverter GX/F repeats, regenerates and re-times the fiber optic signal, and multiple GX/F repeaters can be cascaded to extend total network distances.

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PORT STRUCTURE

Using a 4-port switch design, the GX/F features a front- plane 1000Mbps Gigabit fiber port (P1), a 100Mbps Fast Ethernet fiber port (P2) and two 10/100 Ethernet backplane copper ports (“A” and “B”) that can connect to adjacent modules within the same chassis.

When the GX/F “A” and “B” Ethernet backplane ports are enabled (using the “BPAEN” and “BPBEN” DIP-Switches), they connect via the chassis backplane to the slots on the left and right sides of the GX/F module. When another switch-based module with backplane ports such as a second GX/F or an NMM is installed in an adjacent slot, it can be connected via the backplane to the GX/F to form a multi-module configuration.

GX/F Application Example

Using its switch-based architecture, the GX/F can be used as a two-port fiber converter, or using its two additional 10/100 Ethernet backplane ports, it can connect to adjacent modules and accommodate In-Band management or multi-module configurations (the different iConverter Chassis models provide backplane links to connect between adjacent modules).

The GX/F can be used in an unmanaged or managed fashion. When unmanaged, it can be installed in a chassis without a management module. To be managed, a Network Management Module (NMM) or an iConverter module with built-in management (such as a 10/100M or GX/TM) must be installed in the same chassis.

Advanced Features

The GX/F features Port VLAN and Tag VLAN, which allow control of traffic flow between both the fiber ports and the backplane ports. It also features Port Access Control, which facilitates enabling and disabling of individual ports.

The GX/F supports reporting of MIB statistics. Statistics are available for 32 variables per port, reporting a wide range of real-time packet statistics to provide performance and operational monitoring.

NOTE: Using the advanced features listed above requires management via an NMM, or an iConverter module with built-in management (such as a 10/100M or a GX/TM) and NetOutlook™ Management Software, a 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.

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Fig. 1 depicts a chassis with three modules plugged into three of its 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/F in the center slot connects to the slot on its left using the “A” link and to the slot on its right using the “B” link.

The module on the left is a Network Management Module (NMM) connecting via its “A” backplane port to the GX/F, facilitating “In-Band” management (via the fiber uplink). The module on the right is a 4-port 10/100 switch module (4Tx) connecting to the GX/F via its “B” port. This 3-module configuration forms an effective managed 4-port 10/100 Ethernet switch with one Gigabit fiber uplink port and one Fast Ethernet fiber port.

This example shows how the GX/F can be used as a managed or unmanaged media converter or as a building block in

GX/F MODEL NUMBER REFERENCE CHARTS

iConverter GX/F Dual Fiber Converters

Port 1 - 1000X	Port 2 - 100FX	Connector Types (P1/P2)
(Fiber Type /	(Fiber Type /
Distance /	Distance /	SC/SC	LC/LC	MT-RJ/
Wavelength)	Wavelength)			MT-RJ
MM / 220m /	MM / 5km /	8562-00	-	8564-00
550m 1 / 850nm	1310nm
MM / 220m /	SM / 30km /	8562-01	-	8564-01
550m 1 / 850nm	1310nm
MM / 220m /	SM / 60km /	8562-02	-	-
550m 1 / 850nm	1310nm
MM / 220m /	SM / 120km /	8562-03	-	-
550m 1 / 850nm	1550nm
SM / 12km /	MM / 5km /	8563-10	-	8565-10
1310nm	1310nm
SM / 12km /	SM / 30km /	8563-11	8567-11	8565-11
1310nm	1310nm
SM / 12km /	SM / 60km /	8563-12	8567-12	-
1310nm	1310nm
SM / 12km /	SM / 120km /	8563-13	8567-13	-
1310nm	1550nm

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. When using single-fiber (SF) media converter models, the Tx wavelength on one end has to match the Rx wavelength on the other.

162.5/125µm, 100/140µm multimode fiber up to 220m. 50/125µm multimode fiber up to 550m. Refer to the fiber cable manufacturer for multimode distance specifications.

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front-plane port, and a loss of a received Link at one port causes the other front-plane port to drop its link out. For example, P2 transmits a Link only when receiving a Link at P1 [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) mode, the P1 port transmits a Link signal only when both it and P2 are receiving Link signals. A loss of a received Link signal at P1 is Looped-back to P1 and propagated to P2, causing both to stop transmitting the Link signal [Fig. 2(e)]. Also, the loss of a received Link at P2 is propagated to both P1 and P2, which stop transmitting the Link signal.

iConverter GX/F Dual/Single-Fiber Converters

Port 1 - 1000x	Port 2 - 100Fx	Connector
Dual Fiber	Single Fiber	Type
(Fiber Type /	(Fiber Type /	(P1/P2)
Distance /	Distance /
Wavelength)	Wavelength)	SC/SC
MM / 220m / 550m 1 /	SM / 20km /	8562-05
850nm	Tx 1310nm, Rx 1550nm
MM / 220m / 550m 1 /	SM / 40km /	8562-06
850nm	Tx 1310nm, Rx 1550nm
MM / 220m / 550m 1 /	SM / 20km /	8562-07
850nm	Tx 1550nm, Rx 1310nm
MM / 220m / 550m 1 /	SM / 40km /	8562-08
850nm	Tx 1550nm, Rx 1310nm
SM / 12km / 1310nm	SM / 20km /	8563-15
	Tx 1310nm, Rx 1550nm
SM / 12km / 1310nm	SM / 40km /	8563-16
	Tx 1310nm, Rx 1550nm
SM / 12km / 1310nm	SM / 20km /	8563-17
	Tx 1550nm, Rx 1310nm
SM / 12km / 1310nm	SM / 40km /	8563-18
	Tx 1310nm, Rx 1550nm

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 . When using single-fiber (SF) media converter models, the Tx wavelength on one end has to match the Rx wavelength on the other.

162.5/125µm, 100/140µm multimode fiber up to 220m. 50/125µm multimode fiber up to 550m. Refer to the fiber cable manufacturer for multimode distance specifications.

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100Fx	LS	1000F	LS	100Fx
Fiber		Fiber		Fiber

(a)	P2	P1	P1	P2
Switch 1	Converter A		Converter B		Switch 2
		LS		LS
(b)	P2	P1	P1	P2
Switch 1	Converter A		Converter B		Switch 2
		LP		LP
(c)	P2	P1	P1	P2
Switch 1	Converter A		Converter B		Switch 2
		LP	RFD+LS
(d)	P2	P1	P1	P2

Chassis	Slot 1 (odd)
Backplane		“A” Link

Slot 2 (even)	Slot 3 (odd)
	“B” Link

creating flexible and effective network switch configurations.

NOTE: Connecting two converters both set to RFD is not supported and will cause a “deadly embrace” lockup (refer

Switch 1 Converter A Converter B Switch 2

A Port B Port

NMM

front /

back

select

A Port	B Port
Internal
10/100/1000
switch chip

A Port	B Port
Internal
10/100
switch chip

For more information about individual chassis “A” and “B” backplane links, refer to the specific chassis’ user manual.

LINK MODES

In order to accommodate different user needs, the GX/F supports five different linking modes (see Fig. 2).

In “Link Segment” (LS) mode (“Normal” mode), a port transmits a Link signal independently of any received Link at any port. For example, P2 transmits a Link regardless of the receiving

to the Port 1 1000FX Auto-Negotiation DIP-Switch section).

“Symmetrical Fault Detection” (SFD) mode operates similarly to the Remote Fault Detection (RFD) mode. In SFD mode, the loss of a received Link at P1 is Looped- Back to P1 and propagated to P2, causing both to stop transmitting the Link signal [Fig. 2(f)] and also causing blinking in a connected GX/F P1 “Link” LED indicator.

Connecting two converters which are both set to SFD is

		LP
(e)	P2	P1

Switch 1	Converter A
		SFD
(f)	P2	P1
Switch 1	Converter A

RFD + LP
P1	P2
Converter B		Switch 2
	SFD
P1	P2
Converter B		Switch 2

NMM UTP	Fiber	Fiber	4-port 10/100 UTP
10 port	1000 port	100 port	Switch
NMM Module	GX/F Module		4Tx Module

Fig. 1 In-Band Managed GX/F Application

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of a Link at P1 [Fig. 2(a) & 2(b)].

In “Link Propagate” (LP) mode (sometimes referred to as “Link-Loss-Carry-Forward”), a port transmits a Link signal only when receiving a Link on the other

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permitted and facilitates a dual-loop-back feature where P1 fiber faults can be reported to both ends of the network.

NOTE: Converters in SFD mode must be deployed in pairs, and the “LS” DIP-Switch position must also be selected.

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LED Lit LED Blinking LED Off LED Status depends on connected device

LED Status (Blinking/off) depends on connected device

Fig. 2 GX/F Link Modes

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