Metrobility 10/100 AutoTwister 7
*Changes to switches AN1, 100M1, FD1 and FD2 only come into effect after the power-cycle initialization.
Auto-Negotiation Switch (AN1)
*
Switch AN1 controls the use of auto-negotiation on the copper port. To
enable auto-negotiation, set the switch ON. To disable this function, set the
switch OFF. By default, auto-negotiation is enabled.
When the copper port has auto-negotiation enabled, it advertises 100Mbps
full duplex capabilities. When auto-negotiation is disabled, the port’s duplex
is determined by the FD1 switch, and its speed is set by the 100M1 switch.
10/100Mbps Switch (100M1)
*
Switch 100M1 controls the speed setting for the copper port. If auto-ne-
gotiation is disabled, the port speed will be the same as this switch setting,
where ON is 100Mbps and OFF is 10Mbps. The default speed setting is
100Mbps. When auto-negotiation is enabled, the 100M1 switch setting is
ignored.
Half/Full Duplex Switch (FD1, FD2)
*
Switch FD1 determines the duplex mode for the copper port if auto-negoti-
ation is disabled. When auto-negotiation is enabled, the FD1 switch setting
is ignored. Switch FD2 determines the duplex mode on the fiber optic port.
A port operates at full duplex when its FD switch is ON. It operates at half
duplex when its FD switch is OFF. The default is full duplex enabled.
Figure 2.
