AT-FS238a/x and AT-FS238b/x Series Installation Guide
17
When setting the DIP switches, consider the following:
❑Setting the Auto Ne g DIP switch for th e twisted pair por t 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.
❑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.
4. If you are installing the bridging converter in an AT-MCR12 chassis,
download the AT-MCR12 Chassis Installation Guide from our web site for
instructions on how to install the bridging converter, then proceed to
Step 7.
Table 5 DIP Switch Settings
DIP
Switch
Number
Port Setting Position Description
12Speed (Mbps)Up
Down
The twisted pair port is operating at 10
Mbps.
The twisted pair port is operating at 100
Mbps.
2 1 Duplex Mode Up
Down
The fiber optic port is operating at
half-duplex mode.
The fiber optic is operating at full-duplex
mode.
3 2 Duplex Mode Up
Down
The twisted pair port is operating at
half-duplex mode.
The twisted pair port is operating at
full-duplex mode.
42Auto NegUp
Down
Auto-negotiation on the twisted pair port is
OFF.
Auto-negotiation on the twisted pair port is
ON.