Galaxy A16F-R2431 Installation and Hardware Reference Manual
3-2
FC Host
Connection Prerequisites
WARNING!
All optical cables are sensitive and must be handled with care. To prevent
interference within a rack system, the cable routing path must be carefully
planned and the cables must not be bent.
CAUTION!
Fibre Channel Optical interfaces are dust sensitive and therefore host
ports come with dust plugs. When a host port is not in use, a dust plug
should always be installed.
3.1.2 FC Lasers
CAUTION!
Although the 4Gbps Fibre interface sockets comply with the Class 1
safety standard, Lasers can still be hazardous and may cause eye
damage. Therefore, the optical transceivers must be treated with caution.
Never look at lasers without confirming that they are off.
Wavelengths:
The lasers on fiber optic cables emit either short wave (SW)
beams (770nm-860nm) or long wave (LW) (1270nm-1355nm) beams.
Cables using either of these wavelengths can be used. It is recommended to
use transceiver and cables from Rorke Data. Please contact your vendor for
compatibility information.
Laser types:
Two (2) types of laser devices can be used in FC cables:
Optical Fibre Control (OFC) and non-OFC lasers. The OFC lasers are high-
powered and can be used over long distances.
Safety features:
Due to their high power output, OFC lasers usually come
with a safety mechanism that switches the laser off as soon as it is
unplugged. Non-OFC lasers are low power and do not come with these
safety features; however, they can still inflict damage.
SFPs are field-replaceable units (FRUs) and can be ordered from Rorke.
These SFPs have been selected and tested to provide the necessary
reliability and performance. SFPs from other vendors are not supported.
NOTE:
SFP and cable assemblies can be ordered from Rorke. These cabling
devices have been selected and tested to provide necessary reliability and
performance. SFPs from other vendors may not work well with the
subsystem.
