Hardware Overview

CPU mother board:

RISC processor 32-bit PowerPC 403 GCX at 66 MHz

32-bit local bus at 33 MHz

8-Mbyte DRAM memory

512 KB Flash EEPROM for boot code and modem firmware

PCI 2.1-compliant master/target bus interface

Internal Channel Service Unit (CSU) to enable a direct connection to a North American T1 line

RAS support for ISDN channels, including ISDN B channels associated with digital modems:

On the single-port board: RAS support for up to 30 B channels and 1 D channel (Europe and Australia) or 23 B channels and one 1 channel (United States and Japan)

On the dual-port board: RAS Support for up to 60 B channels and 2 D channels (Europe and Australia) or 46 B channels and 2 D channels (United States and Japan)

Three expansion slots allowing the addition of up to 18 digital modems on digital modem extension modules

Digital modem extension cards (5536-DM modules) available, with six digital modems in each module, implemented with Rockwell CSM/3 chips

DM modules can be pre-installed or installed as upgrades, depending on customers’ needs. For information about installing DM modules, see the Read Me First documentation included with the DM module package.

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Interphase Corporation