Omnitron Systems Technology iConverter 2-Port GM4 User Manual
Page 2

NOTE: If a 100Mbps fiber transceiver is installed, the port will operate in 100Mbps full-duplex
manual mode.
The function of DIP-switch Bank 1 is outlined in Figure 2 below.
Switch DOWN (Default)
UP
SW6
SW7
SW8
Link Mode
1
AN:
P1 Auto-neg.
Man:
P1 Manual Neg.
DN
DN
DN
Link Segment (LS)
2
AN:
P2 Auto-neg.
Man:
P2 Manual Neg.
UP
DN
DN
Link Propagate (LP)
3
1000:
P2 1000Mbps
10-100:
P2 10 or 100Mbps
DN
UP
DN
Remote Fault Detect + Link
Segment (RFD+LS)
4
100:
P2 100Mbps
10:
P2 10Mbps
UP
UP
DN
Remote Fault Detect + Link
Propagate (RFD+LP)
5
FDX:
P2 Full-Duplex
HDX:
P2 Half-Duplex
DN
DN
UP
Symmetrical Fault Detect (SFD)
6
Link Modes
UP
DN
UP
Asymmetrical Link Propagate Port
1 to Port 2 (ALP P1 P2)
7
DN
UP
UP
Asymmetrical Link Propagate Port
2 to Port 1 (ALP P2 P1)
8
UP
UP
UP
Asymmetrical Link Propagate Port
1 to Port 2 + Port 1 Remote Fault
Detect (ALP P1 P2 + P1 RFD)
Figure 2: DIP-switch Bank 1
Figure 3: Link Mode Settings
SW2, SW3, SW4, SW5 - UTP Configuration
SW2
P2
AN/MAN
(UTP)
SW3
P2
1000/100-10
(UTP)
SW4
P2
100/10
(UTP)
SW5
P2
FDX/HDX
(UTP)
UTP Mode of Operation
AN
1000
10 or 100
FDX
The UTP port is set to auto-negotiation with the following modes
advertised: 1000F, 1000H, 100F, 100H, 10F, 10H
AN
1000
10 or 100
HDX
The UTP port is set to auto-negotiation with the following modes
advertised: 1000H, 100F, 100H, 10F, 10H
AN
10-100
100
FDX
The UTP port is set to auto-negotiation with the following modes
advertised: 100F, 100H, 10F, 10H
AN
10-100
100
HDX
The UTP port is set to auto-negotiation with the following modes
advertised: 100H, 10F, 10H
AN
10-100
10
FDX
The UTP port is set to auto-negotiation with the following modes
advertised: 10F, 10H
AN
10-100
10
HDX
The UTP port is set to auto-negotiation with the following modes
advertised: 10F, 10H
Man
1000
10 or 100
FDX
The UTP port is set to auto-negotiation with the following modes
advertised: 1000F (When set to 1000, the port is always in AN mode)
Man
1000
10 or 100
HDX
The UTP port is set to auto-negotiation with the following modes
advertised: 1000H (When set to 1000, the port is always in AN mode)
Man
10-100
100
FDX
The UTP port is set to manual negotiation and is forced to: 100F
Man
10-100
100
HDX
The UTP port is set to manual negotiation and is forced to: 100H
Man
10-100
10
FDX
The UTP port is set to manual negotiation and is forced to: 10F
Man
10-100
10
HDX
The UTP port is set to manual negotiation and is forced to: 10H
Figure 4: UTP Configuration
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Page 3
SW6, SW7, SW8 - LINK MODES
The DIP-switches shown in Figure 3 on the previous page, are used to configure the link
modes. It is recommended to have link modes DOWN (default) during the initial installation.
After the circuit has been tested and operational, configure the module for the desired
mode.
For detailed information on the operation of the different Link Modes, download the application
note “
iConverter
Link Modes” available on Omnitron’s web page:
http://www.omnitron-systems.com/downloads.php
2) INSTALL STANDALONE MODULE AND CONNECT CABLES
a. The GM4 is available in tabletop and wall-mount models. For wall-mounting, attach the
GM4 to a wall, backboard or other flat surface. For tabletop installations, place the unit
on a flat level surface. Attach the rubber feet to the bottom of the GM4 to prevent the
unit from sliding. Make sure the unit is placed in a safe, dry and secure location.
To power the unit using the AC/DC adapter, connect the AC/DC adapter to an AC outlet.
Then connect the barrel plug at the end of the wire on the AC/DC adapter to the 2.5mm
DC barrel connector (center-positive) on the unit. Confirm that the unit has powered up
properly by checking the power status LED located on the front of the unit.
To power the unit using a DC power source, prepare a power cable using a two conductor
insulated wire (not supplied) with a 14 AWG gauge minimum. Cut the power cable to the
length required. Strip approximately 3/8 of an inch of insulation from the power cable
wires. Connect the power cables to the unit by fastening the stripped ends to the DC
power connector. Connect the power wires to the DC power source. The Power LED
indicates the presence of power.
WARNING: Note the wire colors used in making the positive and negative connections.
Use the same color assignment for the connection at the DC power source.
NOTE: If mounting with a safety ground attachment, use the safety ground screw at the
rear of the unit.
b. Insert the SFP Fiber transceiver into the SFP receptacle on the GM4.
NOTE: The release latch of the SFP Fiber transceiver must be in the closed position
before insertion.
The GM4 module has the ability to detect the speed and automatically configure the
port to match the speed of approved SFP transceivers. Some SFP fiber transceivers
will need to be configured using the portattribute CLI commands to configure the speed
of the port to match the speed of the installed SFP transceiver. See the full version of
the User Manual for more information.
c. Connect the UTP port via a Category 5 cable to a 10BASE-T, 100BASE-TX or
1000BASE-T Ethernet device.
d. Connect the appropriate multimode or single-mode fiber cable to the fiber port of the
installed module. It is important to ensure that the transmit (TX) is attached to the receive
side of the device at the other end and the receive (RX) is attached to the transmit side.
Single-fiber (SF) transceivers operate in pairs. The TX wavelength must match the RX
wavelength at the other end and the RX wavelength must match the TX wavelength at
the other end.
3) CONFIGURE MODULE VIA COMMAND LINE INTERFACE
To access the Command Line Interface (CLI), connect the GM4 RS-232 Serial Console