Overview
4
Table 1 lists the maximum operating distances for the bridging converters.
Table 1 Maximum Operating Distances
External Power Supply
The AT-FS238a/x and AT-FS238b/x Series Bridging Converters are designed
with either the 12VDC or the 12-50VDC receptacle power connector.
Any of the following power sources can be used with the AT-FS238a/x or
AT-FS238b/x Series Bridging converter.
❑An AC/DC power adapter - used specifically with the 12VDC-rated
version model
❑An AT-PWR237 power adapter (12V or 15V output) - used with the
12-50VDC-rated version model. This power adapter must be used with
the power connector provided, shown in Figure5 on page 5.
❑A regulated power supply (SELV power source per IEC 60950) - rated
minimum 12-50VDC 0.5A - used specifically with the 12-50VDC-rated
version model. This power suppl y must be used with the power
connector provided, shown in Figure5 on page 5.
Note
Use only power sources that are UL Listed (QQGQ or EPBU), TUV
Licensed, or other Safety Agencies approved, suitable for country of use.
Model
100Base-FX 10Base-T/100Base-TX
Connector Maximum Operating
Distance1
1. Maximum distance for 100 Mbps optical datalinks is dependent on the following factors: type of optical fiber,
duplex mode of both end-nodes, and maximum optical loss budget for each of the optical fiber at the operating
optical wavelength.
Connector Maximum Operating
Distance2
2. Maximum distance can only be obtained when the UTP/STP cabling is installed and verified to TIA/EIA 568A
Commercial Building Telecommunications Cabling Standard.
AT-FS238a/1
AT-FS238b/1
SC 15 km (9.3 mi) RJ-45 100 m (328 ft)
AT-FS238a/2
AT-FS238b/2
SC 40 km (24.8 mi) RJ-45 100 m (328 ft)