The trunk to which the IBM® jumper cables are connected must have optical properties that conform to the
specifications in the table.
Table 1. Maximum coupling link loss
(at 1300-nanometer wavelength)
| Maximum link length in km (Miles) |
Maximum link loss (dB) |
Trunk size (μm) |
Minimum trunk modal bandwidth (MHz•km) |
| ≤10 (6.2) |
7 |
9 to 10 |
N/A to single mode fiber |
| ≤0.5501 (.31) |
5 |
50 |
500 |
| 1 Requires mode conditioning patch cables on both ends of
the link (1 Gbit/s links only). Note: Coupling links which support 1 km (0.62) with 50 μm fiber; 8 dB
loss at 850 nm wavelength have been discontinued effective May 1998.
|
Table 2. Maximum FICON/FCP/HPF link loss (at 1300-nanometer wavelength at 1, 2, 4,
8, 16, or 32 Gbit/s)
| Data rate |
Maximum link length in km (Miles) |
Maximum link loss (dB) |
Trunk size (μm) |
Minimum trunk modal bandwidth (MHz•km) |
| 1 Gbit/s |
10.00 (6.21) |
7.80 |
9 |
N/A to single mode fiber |
| 1 Gbit/s |
0.550 (0.34) |
5.00 |
62.51 |
200 |
| 1 Gbit/s |
0.550 (0.34) |
5.00 |
501 |
500 |
| 2 Gbit/s |
10.00 (6.21) |
7.80 |
92 |
N/A |
| 4 Gbit/s |
10.00 (6.21) 3 |
7.80 |
92 |
N/A |
| 4 Gbit/s |
4.00 (2.48) 3 |
4.80 |
92 |
N/A |
| 8 Gbit/s |
10.00 (6.21)3
|
6.4 |
92 |
N/A |
| 16 Gbit/s |
10.00 (6.21)3 |
6.4 |
92 |
N/A |
| 32 Gbit/s |
5.00 (3.11)4 |
6.34 |
92 |
N/A |
Notes:
-
1 Mode Conditioner Cable (FC0106) required for Trunk Fiber reuse. All Fiber between mode
conditioners must be 62.5 μm. Requires matching LX optics.
-
2 Use of Mode Conditioner Patch cables for MM Trunk Fiber reuse is not supported for 2/4
Gbit/s.
- 3
IBM supports
interoperability of 10 km transceivers with 4 km transceivers provided the unrepeated distance
between a 10 km transceiver and a 4 km transceiver does not exceed 4 km (2.5 miles).
- 4 FICON® Express32S LX (FC=0461) supports a 32 Gbps link speed at distances up to 5 km between each channel and its nearest neighbor.
|
Table 3. Maximum FICON/FCP link loss (at
850-nanometer wavelength)
| Data rate |
Maximum link length in km (Miles) |
Maximum link loss (dB) |
Trunk size (μm) |
Minimum trunk modal bandwidth (MHz•km) |
| 1 Gbit/s |
0.860 (0.53) |
4.62 |
50 |
2000 |
| 1 Gbit/s |
0.500 (0.31) |
3.85 |
50 |
500 |
| 1 Gbit/s |
0.300 (0.19) |
3.00 |
62.5 |
200 |
| 1 Gbit/s |
0.250 (0.16) |
2.80 |
62.5 |
160 |
| 2 Gbit/s |
0.500 (0.31) |
3.31 |
50 |
2000 |
| 2 Gbit/s |
0.300 (0.19) |
2.62 |
50 |
500 |
| 2 Gbit/s |
0.120 (0.07) |
2.10 |
62.5 |
200 |
| 4 Gbit/s |
0.400 (.248) |
2.95 |
50 |
4700 |
| 4 Gbit/s |
0.380 (0.23) |
2.88 |
50 |
2000 |
| 4 Gbit/s |
0.150 (0.09) |
2.06 |
50 |
500 |
| 4 Gbit/s |
0.070 (0.04) |
1.78 |
62.5 |
200 |
| 8 Gbit/s |
0.190 (.118) |
2.19 |
50 |
4700 |
| 8 Gbit/s |
0.150 (0.09) |
2.04 |
50 |
2000 |
| 8 Gbit/s |
0.050 (0.03) |
1.68 |
50 |
500 |
| 8 Gbit/s |
0.021 (0.01) |
1.58 |
62.5 |
200 |
| 16 Gbit/s |
0.125 (.077) |
1.95 |
50 |
4700 |
| 16 Gbit/s |
0.100 (.062) |
1.86 |
50 |
2000 |
| 16 Gbit/s |
0.035 (.021) |
1.63 |
50 |
500 |
| 16 Gbit/s |
0.015 (.009) |
1.56 |
62.5 |
200 |
| 32 Gbit/s |
0.100 (.062) |
1.86 |
50 |
4700 |
| 32 Gbit/s |
0.070 (0.04) |
1.75 |
50 |
2000 |
| 32 Gbit/s |
0.020 (0.01) |
1.57 |
50 |
500 |