Allied Telesis AT-FS238a/2 - Manual (Page 16)

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 Figure 5 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 supply must be used with the power
connector provided, shown in Figure 5 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
Distance 1
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
Distance 2
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)