Meridian America Link/Customer Controlled Routing IPE Module components, IPE Module faceplate

46Chapter 4: Meridian Link/CCR hardware

IPE Module components

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.

553-3202-210 Standard October 1998