Glossary-16
fullduplex
Simultaneous twoway independent transmission.
FXO, Foreign Exchange Office
An offpremise telephone extension. The Universal Voice Module offers an
FXO interface. The equivalent term used in the domestic and international
voice/fax module is OPX.
FXS, Foreign Exchange Station
In the voice environment, a telephone extension that has been extended
offpremises. The Universal Voice Module offers an FXS interface. The
equivalent term used in the domestic and international voice/fax module is
KTS.
gateway
In LAN technology, a server that can access two or more different networks.
As such, it can forward messages across networks that other hosts would not
be able to access. The gateway generally has multiple IP addresses (one for
each network). For example, a gateway might
live
at addresses 192.6.7.8
and 193.6.7.8. Hosts wishing to forward messages address the messages to
the gateway, which passes them on to the other network. Contrast with
bridge.
halfduplex
Transmission in one direction at a time.
hardware reset
Resets date and time but retains the current configuration. On Integration
units this reset is accessed from the front.
header
Pins on a circuit board onto which a jumper can be installed for hardware
configuration purposes.
host
The central computer (or computer systems) that provides primary data
processing functions.
hub group
This term is most often used in discussions of switching. Each Integration
unit is considered a hub. An Integration unit and all attached MICOM
muxes form a hub group.