HP NonStop G-Series - Manual (Page 271)

distinction between the two is not required.
ServerNet wide area network (SWAN) 2 concentrator
An HP data communications peripheral that provides connectivity to an HP NonStop"
S-series server. The SWAN 2 concentrator supports both synchronous and asynchronous
data over RS-232, RS-449, X.21, and V.35 electrical and physical interfaces. The SWAN
2 concentrator is the next-generation SWAN concentrator and has 12 WAN ports.
ServerNet/FX adapter
A ServerNet adapter that logically extends the ServerNet X and Y fabrics to other
clusters in a Fiber Optic Extension (FOX) ring by using fiber-optic lines. Two 6740
ServerNet/FX adapters are used, one for the X ring and one for the Y ring.
ServerNet/FX 2 adapter
A ServerNet adapter that logically extends the ServerNet X and Y fabrics to other
clusters in a Fiber Optic Extension (FOX) ring by using fiber-optic lines. Two 6742
ServerNet/FX 2 adapters are used, one for the X ring and one for the Y ring.
service connection
A connection between the system console and the OSM software on a NonStop S-series
server. A service connection is initiated from the browser on the system console and can
be used to communicate with the server only when the NonStop Kernel operating system
is running. The OSM Service Connection provides a comprehensive service and
maintenance picture of the server or ServerNet cluster and is used to perform most
service management tasks.
See also low-level link .
service processor (SP)
A physical component of the processor multifunction (PMF) customer-replaceable unit
(CRU) or multifunction I/O (MFIO) board that controls the serial maintenance bus
(SMB) and provides environmental and maintenance functions, including system load
functions. Service processors operate in pairs in order to provide fault tolerance. One pair
of service processors in a system is designated as the
master service processors (MSPs) .
Other pairs within the same system are called expansion service processors (ESPs).
See also expansion service processor (ESP), master service processor (MSP) , and peer
service processor (PSP) .
service processor (SP) event messages
A notification generated by the master service processors (MSPs) on the NonStop
S-series server. The OSM Notification Director can gather SP event messages directly
from the MSPs, allowing SP event messages to be received when the NonStop Kernel
operating system is not running.
service provider