Allied Telesis AT-FS238b/2 - Manual (Page 24)

Overview
14
Fiber Optic Port
The AT-FS238a/x and AT-FS238b/x Series Bridging Converters have one
100Base-FX fiber optic port. The fiber optic port features a simplex SC
connector.
Note
The fiber optic port on the bridging converter must be connected to its
companion on another bridging converter (i.e., AT-FS238a/1 to AT-
FS238b/1 or AT-FS238a/2 to AT-FS238b/2), or to a fiber optic port that
is IEEE 802.3ah-compliant and whose operating specifications are
compatible with the fiber optic port on the converter.
Port Speed
The fiber optic port is compliant with the 100Base-FX standard and has a
fixed operating speed of 100 Mbps. The port can send and receive on two
wavelengths. The wavelengths are:
❑
AT-FS238a/x - TX=1310 and RX=1550
❑
AT-FS238b/x - TX=1550 and RX=1310
Duplex Mode
The fiber optic port on the bridging converter can operate in either half or full-
duplex mode. You set the duplex mode manually using a DIP switch on the
back panel of the unit. The default setting is full-duplex.
If you are connecting the fiber optic port to a companion bridging converter
(AT-FS238a/1 to AT-FS238b/1 or AT-FS238a/2 to AT-FS238b/2), you should
leave the duplex setting at the default setting of full-duplex for best
performance. If you are connecting the fiber optic port on the bridging
converter to an IEEE 802.3ah-compliant device, you must determine the
duplex mode of the compliant device and set the duplex mode of the fiber optic
port on the bridging converter accordingly.