Specifications

TN2402 processor
Issue 6 February 2007 265
TN2402 processor
A TN2402 processor circuit pack resides in slot one of cabinet A. The TN2402 processor
platform runs at 25 MHz. The TN2402 includes a 32-bit RISC CPU complex and a maintenance
processor complex that provides serial communications and maintenance functions for
DEFINITY CSI. The TN2402 also terminates ISDN LAPD signaling over the TDM bus from PRI
and BRI trunk circuit packs.
This circuit pack contains 32 MB of DRAM memory, which is provided by one SIMM, and 32 MB
of flash memory. The software is stored on flash memory and on removable memory through
flash-ROM that plugs directly into the TN2402 processor circuit pack. The flash is not
interleaved. The memory on the processor circuit pack contains the generic program and the
system translations. The cartridge contains a copy of the system translations and the error log.
The TN2402 also provides:
● A 5-volt ATA PC-card memory card interface
● Three external RS232 interfaces [CD1]
● A SAT terminal interface
● An SMDR printer or other DTE interface
● A connection for an external modem to dial out alarms
TN2404 processor
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 TN2404 processor circuit pack has 32 MB of DRAM memory and flash memory. The
TN2404 processor for DEFINITY SI can handle errors that are associated with the EM-BUS.
The TN2404 must be used with the C-LAN (TN799) and the Net/Pkt (TN2401) in DEFINITY SI
configurations.