User`s guide

Chapter 1. Implementing Fibre Channel host adapter cards 3
1.1.2 Fibre Channel node-to-node distances
You can order and have IBM install a maximum of 16 Fibre Channel adapters on
ESS Models F10 and F20. Each adapter has a single host port. You can install
both long-wave adapters and short-wave adapters in a single ESS.
Table 1-1 lists the cables that are available for the long-wave and short-wave
adapters. This table also lists the distances that the cables support. See your
IBM field office about 62.5 micron cables or longer cables.
򐂰 Feature code 3021 — Fibre Channel long-wave host adapter (optional 1-16)
for open-systems, AS/400, iSeries, S/390, and zSeries hosts. This adapter
includes a 31 m (101 ft), long-wave optics (9 micron) cable, P/N 08H2774
with an SC-type connector. It provides an interface that supports 100 Mbps
full-duplex data transfer.
򐂰 Feature code 3023 — Fibre Channel short-wave host adapter (optional 1-16)
for open-systems, AS/400, iSeries, S/390, and zSeries hosts. This adapter
includes 31 m (101 ft), 50 micron cable, P/N 54G3384 with an SC-type
connector. It provides an interface that supports 100 Mbps full-duplex data
transfer.
Table 1-1 Fibre Channel cables
For Fibre Channel, the maximum distance between fabric switches, fabric hubs,
and link extenders and a host Fibre Channel port or an ESS Fibre Channel port
is limited to 11 km (6 mi). The maximum distance might be greater than 11 km
(6 mi) when a link extender provides appropriate target initiator or controller
emulation functions such that the length of the connection perceived by the ESS
does not exceed 11 km (6 mi).
Link extenders with emulation functions should not be used on links over which
synchronous PPRC operations are performed because of the additional path
delay introduced by these units.
Adapter Cable Type Distance
FC 3023 (short wave) 50 micron, multimode (500 MHz/km) 500 m (1635 ft)
62.5 micron, multimode (200 MHz/km) 300 m (984 ft)
62.5 micron, multimode (160 MHz/km) 250 m (817 ft)
FC 3021 (long wave) 9 micron, singlemode 50 km (31 mi)
62.5 micron, multimode (500 MHz/km) 550 m (1799 ft)
62.5 micron, multimode (200 MHz/km) 550 m (1799 ft)
62.5 micron, multimode (160 MHz/km) 550 m (1799 ft)