Ipe Module Hardware Components; Smm167; Ipe Module Faceplate - Nortel Meridian Meridian 1 Maintenance Manual

IPE Module hardware components

SMM167

IPE Module faceplate

Meridian Link Release 5C/CCR Release 3C Diagnostic and Maintenance Guide
The IPE Module contains an SMM167 single board computer (SBC) card,
a 240-Mbyte disk drive, a 600-Mbyte tape drive, and an IPE adapter card.
Only the IPE Module is field-replaceable.
This card, one of the Motorola MVME167 family, consists of the
following:
¥ MC68040 microprocessor operating at 25 MHz
¥ 8 Mbytes of dynamic random access memory (DRAM)
¥ MC68882 floating point coprocessor
¥ shared dynamic random access memory (DRAM) with parity
¥ time-of-day clock and calendar with battery backup
¥ 128 kbyte of static random access memory (SRAM)
The SBC card provides the following interfaces:
¥ Small Computer Systems Interface (SCSI) bus interface with direct
memory access (DMA) channel to control the disk/tape unit
¥ eight serial I/O ports with EIA-232-D buffers
¥ Ethernet transceiver interface
The IPE Module faceplate contains a Small Computer System Interface
(SCSI) connector, four light-emitting diodes (LEDs), and three switches.
The SCSI connector must contain an SCSI terminator.
The LEDs show the following conditions:
¥ PWR indicator: This green LED is lit when the power is turned on.
¥ Run indicator: This yellow LED is lit almost continuously when an
application is running, but flickers every few seconds.
Chapter 1: Overview 11