Hardware Description and Reference for Avaya ... - Avaya Support

TN2183/TN2215 analog line for multiple countries (16 ports)
TN2183/TN2215 analog line for multiple countries (16
ports)
See TN2215/TN2183 analog line for multiple countries (16 ports) (international offers or Offer B
only for US and Canada) on page 253.
TN2184 DIOD trunk (4 ports)
Note: This
Note:
circuit pack is not used in a G650 Media Gateway.
Note:
Note: This circuit pack is no longer sold.
The TN2184 is a Direct Inward/Outward Dialing (DIOD) trunk circuit pack used for Germany.
The TN2184 circuit pack contains four port circuits. Each circuit interfaces a 2-wire analog CO
trunk with the TDM switching network of the system. Each port allows incoming calls and
outgoing calls to include addressing information. This information is received from the CO for
incoming calls. Or, this addressing information is being sent to the CO for outgoing calls. The
TN2184 detects periodic pulse metering (PPM) signals for call-charge accounting on outgoing
calls.
The TN2184 combines the features of a CO trunk and a DID trunk. The TN2184 provides both
outgoing calls and incoming calls with addressing information in both directions.
TN2185B ISDN-BRI S/T-TE interface (4-wire, 8 ports)
The TN2185B supports eight 4-wire ISDN-BRI line S interfaces. Each interface operates at
192 kbps, with two B channels (64 kbps) and one D-channel (16 kbps). The TN2185B interfaces
to the LAN bus and to the TDM bus to provide the TE side of the BRI interface. The TN2185B is
similar to the TN2198 except that the TN2185B is a 4-wire S-interface instead of a 2-wire
U-interface.
For each port, information communicates over two 64-kbps bearer channels called B1 and B2.
Information also communicates over a 16-kbps channel called the demand channel, or
D-channel. The D-channel is used for signaling. Channels B1 and B2 can be circuit-switched
simultaneously, or either of them can be packet-switched, but not both at once. The D channel
is always packet-switched. For voice operation, the circuit pack has a Mu-Law or A-Law option
that applies uniformly to all circuit-switched connections on the circuit pack. The circuit-switched
connections operate as 64-kbps clear channels when in the data mode. The packet-switched
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