Seagate Fibre Channel Interface - Manual (Page 395)

Fibre Channel Interface Manual, Rev. D 381
OPN Initiator
The port on an Arbitrated Loop that sent the OPN primitive.
Optical fibre
Any filament or fibre, made of dielectric material, that guides light.
Optional
Characteristics that are not required by FC-PH. However, if any optional characteristic is implemented, it shall
be implemented as defined in FC-PH.
Ordered set
A transmission word composed of a special character in its first (leftmost) position and data characters in its
remaining positions. An ordered set is represented by the combination of special codes and data bytes which,
when encoded, result in the generation of the transmission characters specified for the ordered set.
Originator
The logical function associated with an N_Port responsible for originating an exchange.
Originator Exchange Identifier (OX_ID)
An identifier assigned by an originator to identify an exchange and meaningful only to the originator (see
Responder Exchange Identifier).
ORL
Optical return loss.
OVC_ID
Originator VC_ID.
OX_ID
Originator_Exchange_Identifier.
P_BSY
N_Port Busy.
Payload
Contents of the data field of a frame, excluding optional headers and fill bytes, if present.
PDISC
Discover N_Port Service parameters.
Plug
The cable half of the interface connector which terminates an optical or electrical signal transmission cable.
Port
A generic reference to an N_Port or F_Port.
Port_Name
A Name_Identifier associated with a port.