IBM System/7 Functional Characteristics - All about the IBM 1130 ...

• One or two analog output points.• As many as 128 digital input points, divided into eight 16-point groups. The firsttwo groups can each have an optional process interrupt feature that generates aninterruption from a change in status of a point. Each group provides 16 non-isolatedcontact sense points or 16 isolated points. The processor interrupt feature isavailable only with isolated points.• As many as 64 digital output points, divided into four 16-point groups. Each groupprovides 16 isolated points or 16 non-isolated, solid-state switches for switchingup to 450 ma. of user-supplied power.• One 2790 Control feature for attaching a single loop of the IBM 2790 Data CommunicationSystem.The IBM 5013 Digital I/O Module is available in one model (Model Al). Anycombination of the following module features is available:• Digital input• Digital output• 2790 Control• Custom interface and custom attachmentThe digital I/O and the 2790 Control features are identical to those in the 5012Multifunction Module.Each 5013 module can accommodate one custom interface. The number of customattachments in the module, however, is limited by the physical size of the attachments.For information on IBM data processing equipment that may be attached to theSystem/7, refer to IBM System17 1291549617431 Data Processing I/OAttachments General Information Manual RPQ Number D08147, Order No.GA34-1514.Disk Storage ModuleThe IBM 5022 Disk Storage Module is available in four models. Models 1 and 2 each containtwo disks, one above the other. The upper disk is contained in a disk cartridge so thatit can be used for offline storage. Disk storage module models 3 and 4 each contain onlyone disk, which cannot be used for offline storage.All four models of the disk storage module read and write data on a magnetic surface atthe same rate of speed. Models 1 and 3 differ from models 2 and 4, respectively, only inthe time required to move the access mechanism. The disk storage module is describedmore fully in Chapter 15 of this manual.Any model of the disk storage module can accommodate the optional disk cyclesteal (CS) feature (the CS basic feature in the processor module is a prerequisite). Theoptional feature allows the transfer of up to 3,072 words to or from the disk with onlyone I/O command.5024 I/O Attachment EnclosureThe IBM 5024 I/0 Attachment Enclosure provides medium speed line printing and cardread capabilities for the System/7 via a Line Printer and a 2502 Model A2 Card Reader.The 5024 differs from conventional System/7 I/O modules in that it resides outside ofthe 5026 within its own enclosure. The enclosure houses the power and logic necessary tocontrol the printer and card reader mounted on it.The 5024 can attach to the 5010E processor mounted in a 5026, A2, C3, or C6enclosures. Any one of the three model configurations can be attached. The 5024communicates with the System/7 through control logic in the 5010E processor. TheSystem/7 communicates with the 5024 through set interrupt commands.The 5024attachment is described in greater detail in Chapter 17 of this manual.Introduction 1-5