Installation and Getting Started Guide
•
1000BaseLX ports come equipped with SC connectors.
•
1000BaseT ports come equipped with RJ-45 connectors.
Figure 2.9
Pin assignment and signalling for 10/100BaseTX and 1000BaseT ports
Pin Assignment
8
1
Cable Length
•
1000BaseT: Cable length should not exceed 100 meters.
•
100BaseTX: Cable length should not exceed 100 meters.
•
100BaseFX: Cable length should not exceed 2 kilometers.
•
1000BaseSX: Cable length should not exceed 550 meters when operating with multi-mode cabling.
•
1000BaseLX:
Cable length of 2 – 440 meters is supported on 62.5 µm multi-mode fiber (MMF) cabling.
•
Cable length of 2 – 550 meters is supported on 50 µm multi-mode fiber (MMF) cabling.
•
Cable length of 2 – 5000 meters is supported on 9 µm single-mode fiber (SMF) cabling.
•
1000BaseSX
1000BaseLX
2 - 20
10BaseT
Pin Number
MDI-X ports
1
RD+
2
RD-
3
TD
1
4
Not used
5
Not used
6
TD-
8
7
Not used
8
Not used
Table 2.2: Cable length summary table
Fiber Type
Core
Diameter
(microns)
MMF
62.5
MMF
62.5
MMF
50
MMF
50
MMF
62.5
MMF
50
MMF
50
SMF
9
100BaseTX and 1000BaseT
Pin Number
MDI-X ports
1
RD+
2
RD-
3
TD
4
CMT
5
CMT
6
TD-
7
CMT
8
CMT
Modal
Minimum
Bandwidth
Range
(MHz*km)
(meters)
160
a
2 – 200
200
b
2 – 275
400
2 – 500
500
c
2 – 550
500
2 – 550
400
2 – 550
500
2 – 550
n/a
2 – 5000