User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
E-3
PBX - Private Branch Exchange. Customer site switch.
PCM - Pulse Code Modulation.
PIO - Programmable Input/Output.
POTS - Plain Old Telephone Service. The analog telephone service found in many
homes and businesses today.
R -Interface - Reference point between non-ISDN devices and terminal adapters.
RJ-45 - An 8-conductor connector often used for Ethernet connections. Looks
similar to a standard telephone jack and plug.
Router - A device that routes network signals from one segment of a network to
another. The Am186CC Router Reference Design routes signals between an ISDN
network and an Ethernet network.
RSLIC - Ringing SLIC (Subscriber Line Interface Circuit). Provides the telephone
line interface (analog) for digital communication devices.
SBP - Serial Bus Port. The simple PCM highway used by the Am79C32A device.
SLAC - Subscriber Line Audio Processing Circuit. A device that provides analog-
to-digital and digital-to-analog conversion, filtering, compression and expansion
functions to interface the analog voice signal from a telephone to the digital Pulse-
Code Modulated (PCM) highway. (See PCM.)
SS7 - Signal System 7. High-speed, common channel interoffice signaling system
necessary for ISDN implementation.
SSI - Synchronous Serial Interface. An Am186CC bus that interfaces directly with
an AMD Subscriber Line Audio Processing Circuit. ( See SLAC.)
S/T-interface - The reference point comprising the 4 wire interface between the
network termination device (NT1) and the terminal equipment (TE1) or terminal
adapter (TA). If an NT2 is used for on-site switching, the S and T reference points
are considered to be separated at the NT2 device. The T reference point is between
the NT1 and NT2, and the S reference point is between the NT2 and the TE1 or TA.
TA - Terminal Adapter. Converts non-ISDN information from a TE2 device to a
format that can be used for ISDN.
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