Allied Telesis AT-FS217 - Manual (Page 32)

Technical Specifications
20
Table 8 Fiber Optic Loss Specification (Benchmarks)
Pinout Assignments
Figure 7 shows the pin assignments of the RJ-45 connector.
Figure 7 RJ-45 Pin Assignments
Table 9 lists the 100Base-TX connector pins and their signals when the port is
operating in either MDI or MDI-X configuration.
Table 9 RJ-45 Pin Signals
Fiber Type
Fiber Optic
Diameter Optical
Frequency Typical
Loss Factor Worst Case
Loss Factor
Bandwidth
Multimode
Fiber 50/125 1310 nm 1.00 db/km 1.50 db/km 400
62.5/125 1310 nm 1.00 db/km 1.5 db/km 500
Single-mode 9/125 nm 1310 nm 0.40 db/km 1.00 db/km N/A
9/125 nm 1550 nm 0.30 db/km 0.75 db/km N/A
MDI-X (Default) Signal MDI Signal
1 RX+ 1 TX+
2 RX- 2 TX-
3 TX+ 3 RX+
4 - 4 -
5 - 5 -
6 TX- 6 RX-
7 - 7 -
8 - 8 -
Pin 1 Pin 8