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Glossary
MSN (Multiple Subscriber Number) - Allows a caller to specify an individual terminal adapter when more than one unit is connected to your network terminator. An MSN consists of a base address and a subaddress. If you assisgn a base address only, the unit accepts any incoming call with the same base address, regardless of whether a subaddress is included. If you assign a base address and a subaddress, the unit only accepts calls that match both the base address and the subaddress.
multilink— In
mux (multiplexer)— A device that merges several signals into one composite signal for transmission over a single medium or channel. A demultiplexer, built into most muxes, reverses the process at the receiving end.
N
nailed connection— A permanent or dedicated circuit of a previously switched circuit or circuits.
NAK (negative acknowledgment)— A communications code used to indicate that a message was not properly received, or that a terminal does not wish to transmit. Contrast with ACK.
network— A group of computers connected by cables or other means and using software that enables them to share equipment, such as printers and disk drives to exchange information.
node— Any point within a network that has been assigned an address.
NT (network termination)— Devices that form the boundary between customer premise equipment and telephone company equipment. Two types of NTs are used: NT1 and NT2.
NT1 (Network TerminationType 1)— An interface device used in the BRI portion of ISDN to connect
NT2 (Network TerminationType 2)— A device at the customer premise (user) side responsible for the ISDN network connection and for functions such as multiplexing and switching (may be an intelligent device).
NTE (network terminating equipment)— A set of ISDN functions residing at the boundary of the IDN and the subscriber.
NUI (network user identification)— A unique alphanumeric number provided to
O
OHCI (OpenHCI): Open Host Controller Interface Specification for USB. All transfers on the USB are initiated by the host system’s host controller. The host controller is responsible for controlling traffic on the USB and can be appropriately programmed to transfer data to and from USB devices. This is typically a PCI device that can be programmed to run a given schedule of transfers on the USB and bus master the results into memory for processing by the host software. There are currently two standards for host controllers: OpenHCI (OHCI or Open Host Controller Interface) and UHCI (Universal Host Controller Interface). Both these standards define register level interfaces of the host controller to PCI bus. Bandwidth allocation over the USB is software managed and is done by the programming of the host controller.
P
packet data—
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