Specifications

TN2401 network control/packet interface for SI
Issue 6 February 2007 263
On S8500 and S8700-series Media Servers, this circuit pack does not directly support
D-channel signaling and thus does not directly support ISDN-PRI connectivity. However, the
TN767 circuit can indirectly support D-channel signaling provided that the central office
supports nonfacility associated signaling (NFAS). In this case, use NFAS administration on the
server to associate the D-channel of another T1/E1 circuit pack, usually a TN464, with the
TN767 circuit pack.
The TN2313AP DS1 interface can be configured as 24 channels at 1.544 Mbps. The TN2313
can supply two 8-kHz reference signals to the switch backplane. These signals can be used by
the tone-clock circuit pack to synchronize the system clock and the received line clock.
The TN2313AP is firmware downloadable.
TN2401 network control/packet interface for SI
Note:
Note: This circuit pack is supported only for Communication Manager R2.2 and earlier.
Note:
Note: This circuit pack is no longer sold.
The TN2401 network control and packet interface is used with DEFINITY SI only.
The TN2401 Net/Pkt interface circuit pack provides the:
● network control interface (NETCON),
● packet interface (PACCON), and
● processor interface (PI) if BX.25 connectivity is not required.
The TN2401 communicates control channel messages between the processor circuit pack and
the distributed network of port circuit packs on the TDM bus. The TN2401 provides eight
asynchronous data channels that process and route information directly from the processor
circuit pack to customer-connected equipment. The TN2401 does not include modems. The
TN2401 is required for the SI model to save translations to the 5-volt ATA flash memory card.