B&B Electronics 856-18901 - Manual - Manual (Page 6)

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U NMANAGED M ODULES
Configure the iMcV-Giga-MediaLinX for desired features before installing it
inside a chassis.
A UTO -N EGOTIATION
The iMcV-Giga-MediaLinX ships from the factory with Auto-Negotiation
enabled on the twisted pair port. In this mode, the twisted pair port negotiates
for speed and duplex, autosensing 10 Mbps Full-Duplex, 10 Mbps Half-Duplex,
100 Mbps Full-Duplex, 100 Mbps Half-Duplex with Flow Control, 1000 Mbps
Full-Duplex or 1000 Mbps Half-Duplex with Flow Control. Configure Auto-
Negotiation by setting the DIP switch (for unmanaged modules) or via the man-
agement software.
S ELECTIVE A DVERTISING
Selective Advertising, when used in combination with Auto-Negotiation,
advertises only the configured speed and duplex mode for the twisted pair port.
This allows configuration of both the twisted pair port’s speed (10, 100 or 1000
Mbps) and Duplex mode (FDX or HDX).
Selective Advertising (switch 7) functions only with Auto-Negotiation (switch
1) enabled.
F ORCING THE D UPLEX M ODE
The twisted pair port on the iMcV-Giga-MediaLinX can be set to either Half-
or Full-Duplex operation. Before manually setting the duplex mode, disable
Auto-Negotiation by setting DIP Switch 1 to OFF.
• The twisted pair port is configured for Full-Duplex by default, which is the OFF
position on DIP Switch 2.
• Configure the twisted pair port for Half-Duplex by setting DIP Switch 2 to the
ON position.
F ORCING THE S PEED
The speed on the twisted pair port (10, 100, or 1000 Mbps) can also be man-
ually configured. (The fiber port always operates at 1000 Mbps.) Before manu-
ally setting the duplex mode, disable Auto-Negotiation by setting DIP Switch 1
to OFF.
• Configure the twisted pair port for 10 Mbps operation by setting both DIP
Switches 3 and 4 to the OFF position.
• Configure the twisted pair port for 100 Mbps operation by setting DIP
Switch 3 to the ON position and DIP Switch 4 to OFF.
• Configure the twisted pair port for 1000 Mbps operation by setting DIP
Switch 4 to the ON position. (When ON, Switch 4 overrides Switch 3).
FX N EGOTIATION
The iMcV-Giga-MediaLinX includes the FX Negotiation feature, which negotiates
duplex mode and also helps insure links. Disabled by default, it must enabled or dis-
abled on both ends of the connection to establish a link. Only enable this feature if
the connecting device supports it.
M ASTER /S LAVE M ODE
The Master/Slave mode feature determines which clock will be used between
the iMcV-Giga-MediaLinX and the connected device. Slave mode is set by
default to use the clock of the connected device. Master mode uses the iMcV-
Giga-MediaLinX's clock. The Master/Slave mode is only valid for the twisted pair
link and can only be manually configured. Configure Master mode by setting
Dip Switch 8 to the ON position.
F LOW C ONTROL
Flow Control is used to throttle the END device to avoid dropping packets
during network congestion. Full-Duplex Flow Control will only function when
the END device has Flow Control and advertises in Full-Duplex Mode. Half-
Duplex Flow Control does not Advertise.
About LinkLoss and FiberAlert
The iMcV-Giga-MediaLinX includes such troubleshooting features as
FiberAlert and TX LinkLoss, which can help locate "silent failures" on the network.
This section explains how FiberAlert and LinkLoss work, and how they will react
in a network configuration, which should be understood before attempting to
install the module(s).
Selective Advertising Configuration Chart
Desired Speed/Duplex Switch 3: Speed Switch 4: Speed Switch 2: Duplex
1000 Mbps FDX OFF ON OFF
1000 Mbps HDX OFF ON ON
100 Mbps FDX ON OFF OFF
100 Mbps HDX ON OFF ON
10 Mbps FDX OFF OFF OFF
10 Mbps HDX OFF OFF ON
Dip Switch Settings
S1 Function Default
1 TX Auto-Negotiation ON
2 TX Port: HDX(ON) or FDX(OFF) OFF
3 TX Port: 100(ON) or 10(OFF) OFF
4 TX Port: 1000 OFF
5 TX LinkLoss OFF
6 FiberAlert OFF
7 Selective Advertising OFF
8 Master (ON) or Slave (OFF) OFF
9 FX Negotiation OFF
10 Factory Configured – Do not change