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Table of Contents
Summary of Contents for QEI 7BI1
- Page 1 Manual 909 7BI1 Bus Interface November 2018...
- Page 2 QEI does not assume liability arising to the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
- Page 3 InterfaceManual 909 7BI1 Bus Revisions Revision Description Date Release to Production July 1989 Revised per Marked Print June 2001 Formatting Update August 2001 Formatting Update June 2013 Formatting Update December 2015 Updated QEI Address November 2018 Copyright © 2018 QEI...
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Page 4: Table Of Contents
7BI1 Bus Contents 1 Introduction ................5 Description................5 7BI1 Specifications .............. 5 Table 1.1: 7BI1 Signal Connections ........6 2 Installation ................7 Installation and Setup ............7 3 Theory of Operation ..............8 4 Maintenance ................10 Maintenance Philosophy ............ 10 Preventive Maintenance ............ -
Page 5: Introduction
3150 Remote via the 7BI1. These signals are output onto the motherboard in the same fashion as with the 6CP2. Therefore, the cards in the 3150 Remote see the 7BI1 as being transparent. That is, they are controlled by the 6CPP2 instead of the 6CP2. - Page 6 909 7BI1Bus Interface Table 1.1: 7BI1 Signal Connections Pin Numbers P1 J1 SIGNAL 11 -- DATA BIT 0 (D0) 10 -- DATA BIT 1 (D1) DATA BIT 2 (D2) DATA BIT 3 (D3) DATA BIT 4 (D4) DATA BIT 5 (D5)
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Page 7: Installation
Installing the 7BI1 consists of unplugging the 6CP2 and replacing it with the 7BI1. A 34 pin flat ribbon cable then plugs into the J3 connector of the 7BI1 while its other end plugs into the J4 connector of the 6CPP2. A 6 pin cable then plugs into the J1 connector of the 7BI1. Where it terminates would depend on the particular system application (7DPA1 or an SCU). -
Page 8: Theory Of Operation
Bus Interface Theory of Operation The key to understanding the 7BI1 is to understand the address strapping options. Since the 6CPP2 can only address eight (8) 3150 cards, there must be a means of selecting these eight (8) from the sixteen (16) possible addresses which the 6CP2 can normally handle. This is done via the X1 through X8 platforms. - Page 9 The remaining signals needed to interface to the 3150 boards are merely passed through the 7BI1 from the J3 connector to the P1 connector (DO-D7, AO-A2, R/W, WP, IRQ, etc.). Three relays on the 7BI1, K1-K3, are used to drive the bus select relays on the FDPA1 or SCU. Their contacts enter via J1.
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Page 10: Maintenance
Bus Interface Maintenance Maintenance Philosophy The 7BI1 Bus Interface is a high-speed digital panel that can be serviced by using standard equipment and techniques. Equipment such as digital multimeters and oscilloscopes can be used to measure voltages and check pulse waveforms. -
Page 11: Returning Defective Subassemblies
2. Enclose a note with the package stating the fault symptoms. 3. Identify the system by QEI's Sales order number and original location in the system. Refer to Equipment Layout drawings (shipped with system) to locate from where the panel was removed. The location is specified as a boxed... -
Page 12: Parts List
Manual 909 7BI1Bus Interface7BI1 Bus Interface Parts List An electrical parts list for the 7BI1 Bus Interface card is included in this section. 15:26:58 28 REPORT: 0056 PAGE 1 SINGLE LEVEL BILL OF MATERIAL LISTING SEPT 1988 DOM NO: 40-... -
Page 13: Drawings
7BI1Bus Interface7BI1 Bus Interface Drawings This section contains the Schematic and Electrical Assembly diagrams of the 7BI1 Bus Interface card. The drawings are listed in Table 6-1. TABLE 6-1. Drawings 7BI1 Bus Interface Card, Schematic Diagram 00-056791-001 Copyright © 2018 QEI...
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