Section 1. Introduction - Honeywell DPS 6 PLUS Operation

Mtu9921/9922 gcr/pe magnetic tape unit

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Section 1

Introduction

The MTU992119922 magnetic tape units, designed for use with DPS 6 PLUS

systems, are buffered, 9-track, dual-density magnetic tape units that offer

6250-bpi Group Coded Recording (GCR) and 1600-bpi Phase-Encoded (PE) opera-

tion. Each tape unit has three operating performance modes: 25-ips start/stop,

25-ips streaming mode, and 75-ips streaming mode. Depending on data flow

between the tape subsystem and the host system, the unit automatically selects

the mode which provides the maximum throughput.

Each tape unit is located in a separate cabinet. Each tape unit is suitable for

mounting on tabletop, system, or an optional tape stand (available from

Honeywell). Up to four drives per MTC9901 Tape Controller may be used with a

system. The first tape unit must be the MTU9921 primary unit; up to three

MTU9922 secondary units may be added as required.

Figure 1-1. MTU992119922 (on optional tape stand)

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HD52-00

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