3Com DIA3CV1100-02 manual Mbaud, Mbps, MiniDIN, Vac, Vdc

44GLOSSARY

MAC	Media Access Control. A protocol that defines the way workstations
	gain access to transmission media, most widely used in reference to
	LANs. For IEEE LANs, the MAC layer is the lower sublayer of the data
	link layer protocol.
MAC address	An address used by the MAC data link sublayer protocol.
Mbaud	Megabaud
Mbps	Megabits per second.
MiniDIN	A connector which connects the VCN AC to the Local Management
	Interface.
NA	Not Applicable. Wherever this appears, it means that the specified
	condition is irrelevant for the case mentioned.
NAT	Network Address Translation. The process of converting between IP
	addresses used within an Intranet or other private network and Internet
	IP addresses. This approach makes it possible to use a large number of
	addresses within the local Intranet without depleting the limited
	number of available numeric Internet IP addresses.
NAU	Network Access Unit. In this case it is the unit installed in a room which
	enables both voice and high speed data services simultaneously on the
	existing telephone line. Another name for the VCN AP.
NCU	Network Concentration Unit. Another name for the VCN AC.
NSP	Network Service Provider
POTS	Plain Old Telephone Service. Basic dial telephone connections to the
	public switched network, without any added features or functions.
Vac	Volts Alternating Current. The measure of the peak-to-peak voltage
	swing of an electrical signal.
VCN	Visitor and Community Network. The system that deploys the VCN
	Access Concentrator and the VCN Access point(s).
VCN AC	VCN Access Concentrator, formerly called NCU.
VCN AP	VCN Access Point, formerly called NAU.
Vdc	Voltage of direct current.