Table 4, Nd table 5 li – Allied Telesis AT-MC103ST/FS3, FS4 User Manual
Page 19

AT-MC100 Series Installation Guide
9
Table 4 100Base-FX Fiber Optic Port Specifications (Full-duplex)
Table 5 100Base-FX Fiber Optic Port (Half-duplex)
1
1.
The total distance of all fiber lengths cannot exceed the limits stated in the table. Each media converter used inline
within a single collision domain reduces the overall segment length by 40 meters (131 feet).
Model
Type of Fiber Optic
Cable
Maximum
Distance
Maximum Allowable
Loss Budget
AT-MC101XL
50/125 or 62.5/125
micron multimode
2 km (1.2 mi)
13 dB at 1310 nm
AT-MC102XL
50/125 or 62.5/125
micron multimode
2 km (1.2 mi)
13 dB at 1310 nm
AT-MC103XL
9/125 micron
single-mode
15 km (9.3 mi)
16 dB at 1310 nm
AT-MC103LH
9/125 micron
single-mode
40 km (24.8 mi)
16 dB at 1310 nm
AT-MC103SC/FS3
9/125 micron
single-mode
75 km (46.5 mi)
1
1. The media converter has a minimum operating distance of 15 km (9.4 mi). This is to prevent blinding or
burning out of the optical receiver on the far-end node.
33 dB at 1310 nm
AT-MC103ST/FS3
9/125 micron
single-mode
75 km (46.5 mi)
1
33 dB at 1310 nm
AT-MC103SC/FS4
9/125 micron
single-mode
100 km (62 mi)
2
2. The media converter has a minimum operating distance of 40 km (24.8 mi). This is to prevent blinding or
burning out of the optical receiver on the far-end node.
34 dB at 1550 nm
AT-MC103ST/FS4
9/125 micron
single-mode
100 km (62 mi)
2
34 dB at 1550 nm
Number of Media Converters
Connected Devices
Maximum Distance
One Media Converter Inline
Switch to Switch
372 m (1,221 ft)
Workstation to Switch
372 m (1,221 ft)
Switch to Class I Repeater
137 m (450 ft)
Switch to Class II Repeater
185 m (607 ft)
Two Media Converters Inline
Switch to Switch
332 m (1,089 ft)
Workstation to Switch
332 m (1,089 ft)
Switch to Class I Repeater
97 m (318 ft)
Switch to Class II Repeater
145 m (476 ft)