Ipe Module Components - Meridian Link/Customer Controlled Routing Installation And Upgrade Manual

46 Chapter 4: Meridian Link/CCR hardware

IPE Module components

553-3202-210 Standard October 1998
The IPE Module (Figure 12) contains an SMM167 single board computer
(SBC) card, a 240-Mbyte disk drive, a 600-Mbyte tape drive, and a CPU
adapter card. Only the IPE Module as a whole is field-replaceable.
SMM167 single board computer (SBC) card
This card, one of the Motorola MVME167 family, consists of the following:
¥ MC68040 microprocessor operating at 25 MHz
¥ 16 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 kbytes 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 SMM167 card is not field-replaceable.
The distance between the IPE Module and the terminals must be 15 m
(50 ft) or less due to the restriction of the RS-232 connections. Any
distances over 30 m (100 ft) require a limited-distance modem. See
Chapter 11, ÒPeripheral device cabling interfaceÓ later in this guide.
IPE Module faceplate
The IPE Module faceplate contains a SCSI connector, four light-emitting
diodes (LEDs), and three switches, as illustrated in Figure 12.
The SCSI connector must contain a SCSI terminator.