AT-FS232 and AT-FS232/x Series Installation Guide
21
When setting the DIP switches, consider the following:
❑
Setting the Auto Neg DIP switch for the twisted pair port to ON or
OFF enables or disables Auto-Negotiation for the port. If you disable
Auto-Negotiation, be sure to set the DIP switches for the port’s speed
and duplex mode to match the speed and duplex mode of the end-node.
❑
Disabling Auto-Negotiation on the twisted pair port also disables Auto
MDI/MDI-X and configures the port as MDI-X.
❑
For the fiber optic port, set the port’s duplex mode using the
appropriate Duplex Mode DIP switch. This setting must match the
duplex mode capability of the end-node to be connected to the port.
Table 6
DIP Switch Settings
DIP
Switch
Number
Port
Setting
Position
Description
1
2
Speed (Mbps) Up
Down
The twisted pair port operates at 10 Mbps.
The twisted pair port operates at 100 Mbps.
2
1
Duplex Mode
Up
Down
The fiber optic port operates in half-duplex
mode.
The fiber optic port operates in full-duplex
mode.
3
2
Duplex Mode
Up
Down
The twisted pair port operates in half-duplex
mode.
The twisted pair port operates in full-duplex
mode.
4
2
Auto Neg
Up
Down
Auto-Negotiation on the twisted pair port is
OFF.
Auto-Negotiation on the twisted pair port is
ON.