Hardware Reference Manual MEGAPLEX Serial I/O Subsystems for ISA/EISA BUS SYSTEMS: MEGAPLEX MCC 24x4 Host Controller MEGAPLEX CMX-24 Cluster Multiplexer MEGAPLEX CMX-24D Cluster Multiplexer MICRO CHANNEL BUS SYSTEMS: MEGAPLEX/2 MCC 24x4 Host Controller MEGAPLEX CMX-24 Cluster Multiplexer MEGAPLEX CMX-24D Cluster Multiplexer RS/6000 SYSTEMS: MEGAPLEX/RS MCC 24x4 Host Controller MEGAPLEX CMX-24 Cluster Multiplexer MEGAPLEX CMX-24D Cluster Multiplexer e
Copyright Notice © 1991, 1992, 1993 Equinox Systems Inc. All rights reserved. Reproduction without permission prohibited. Trademarks Equinox is a registered trademark of Equinox Systems, Inc. MEGAPORT and MEGAPLEX are trademarks of Equinox Systems, Inc. XENIX is a registered trademark of Microsoft Corp. UNIX is a registered trademark of AT&T.
Table of Contents CHAPTER 1 - INTRODUCTION ............................................ 1 Applicability ...................................................................... 2 About This Manual ........................................................... 2 Equipment Check List ...................................................... 3 Software Support ............................................................. 5 References ......................................................................
Hardware Reference Manual MEGAPLEX MEGAPLEX/2 MEGAPLEX/RS Serial I/O Subsystems e PN 560050/B
Table of Contents iv
CHAPTER 1 INTRODUCTION The Equinox MEGAPLEX, MEGAPLEX/2 and MEGAPLEX/RS family of multi-user boards provides high performance serial I/O subsystem solutions for UNIX and XENIX applications in ISA, EISA and Micro Channel bus systems. Except for the computer bus interface and an additional step in the hardware configuration process, MEGAPLEX/2 and MEGAPLEX/RS products are identical to their MEGAPLEX counterparts. Throughout this manual, the term MEGAPLEX refers to all products.
Applicability This manual is applicable to the following Equinox products: ● MEGAPLEX MCC 24x4 Host Controller (ISA/EISA) ● MEGAPLEX/2 MCC/2 24x4 Host Controller (Micro Channel) ● MEGAPLEX/RS MCC/RS 24x4 Host Controller ● MEGAPLEX CMX-24 Cluster Multiplexer (& accessories) ● MEGAPLEX CMX-24D Cluster Multiplexer (& accessories) About This Manual This manual is a technical reference to the hardware installation and operation of the MEGAPLEX family.
Equipment Check List A MEGAPLEX 24-Port Kit contains a host controller board, one or more cluster multiplexers and all applicable accessories (hardware, software and documentation) required by the user's system. ● MEGAPLEX MCC 24x4 Host Controller Board Installs in an 80386- or 80486-based computer. ● MEGAPLEX/2 MCC 24x4 Host Controller Board Installs in a Micro Channel-based computer. or or ● MEGAPLEX/RS MCC 24x4 Host Controller Board Installs in a Micro Channel-based computer.
● 1 to 4 CMX-24 (and/or CMX-24D) Cluster Multiplexers Used to connect peripheral devices. Each CMX-24 and CMX-24D cluster multiplexer is packaged with a wall mounting kit, a 10' 4-wire modular link cable, 2 modular wire adapters (for cable extension) and a wall-mounted power transformer. The CMX-24D can be either wall or rack mounted.
Software Support MEGAPLEX products are supported under various operating systems by different software device drivers supplied by Equinox and other vendors. The following device driver kits (including diskettes and manuals) are available for both MEGAPORT and MEGAPLEX: ● UNIX System V 3.2/386 operating system, SCO XENIX 286 or 386 operating system and compatible variants. Included with the MEGAPLEX and MEGAPLEX/2 host controller boards. ● UNIX System V Release 4 operating system and compatible variants.
6 MEGAPLEX Hardware Reference Manual
CHAPTER 2 INSTALLING MEGAPLEX HARDWARE This chapter details the procedures for installing the MEGAPLEX MCC 24x4, MEGAPLEX/2 MCC/2 24x4 and MEGAPLEX/RS MCC/RS 24x4 host controller boards into a computer and covers the following topics: ● EISA installations ● Installing a Single MEGAPLEX Board ● Installing Additional MEGAPLEX Boards ● Intermixing MEGAPLEX & MEGAPORT Boards ● PS/2-Type Hardware Configuration ● RS/6000 Hardware Configuration For MEGAPLEX, MEGAPLEX/2 and MEGAPLEX/RS there is no hardw
Installing a Single MEGAPLEX Board The MEGAPLEX host controller board should be installed in the first available computer slot. On a desktop type chassis, this is the first empty slot closest to the power supply. The first empty slot closest to the power supply facilitates installing additional boards using the 1inch interconnect cable. MEGAPLEX/2 and MEGAPLEX/RS boards do not require the interconnect cable, so any slot may be used. The first board installed is referred to as MEGAPLEX board #1.
Figure 2-3. Installing MEGAPLEX host controller in a tower chassis 6. After making sure that the top of the board’s bracket is aligned with the hole on the top of the expansion slot, replace the screw which previously held the expansion slot cover. Tighten the screw firmly so that it holds the board in place. 7. If more than one MEGAPLEX host controller board is to be installed, proceed to the paragraph heading Installing Additional MEGAPLEX Boards. 8.
Installing Additional MEGAPLEX Boards Additional MEGAPLEX host controller boards may be installed in a computer. And, MEGAPLEX subsystems may be freely intermixed with Equinox MEGAPORT products. (MEGAPLEX/2 subsystems may be freely intermixed with MEGAPORT/2 and MEGAPLEX/RS subsystems may be freely intermixed with MEGAPORT/RS.) For Micro Channel (MEGAPLEX/2 [/RS] and MEGAPORT/2 [/RS]) boards, simply install the additional boards in empty slots in the computer.
To install an additional MEGAPLEX or MEGAPORT board, perform the following procedure (refer to Figure 2-4): 1. Locate the J2 connector on the board to be installed. This is located just below the J3 connector. Plug the short interconnect cable into the J2 connector. 2. Locate the free expansion slot located to the left (facing the front of a desktop chassis computer) or below (for tower chassis) of the previously installed MEGAPLEX board.
Intermixing MEGAPLEX & MEGAPORT Boards MEGAPLEX subsystems may be freely intermixed with other Equinox MEGAPORT products. If a MEGAPLEX subsystem(s) is combined with any MEGAPORT board(s) in a system, the MEGAPLEX subsystem(s) must be the first board, physically, in the system. The interconnect cable supplied with either board is connected in the same manner as when adding another board (see Figure 2-4) in the system.
1. After receiving the 165 error message, the machine appears to hang. Place the Reference Diskette in drive A: and press F1. The screen clears and the banner screen appears. Press Enter to continue. The following message is displayed: Use Automatic Configuration (Y/N)? N 2. When answering no to the automatic configuration question, the following main menu appears: Main 1. 2. 3. 4. 5. 6. Menu Learn about the computer. Backup the Reference Diskette. Set Configuration. Set features. Copy an option diskette.
5. After running the automatic configuration the system CMOS contains the configuration of all adapters including the MEGAPLEX/2. At this point, backup the new configuration by selecting option 3, Backup configuration, from the set configuration menu. 6. The new configuration is copied onto the Backup Reference Diskette. After the backup is complete, remove the Backup Reference Diskette and store it and the original Reference Diskette in a safe place.
CHAPTER 3 MEGAPLEX CABLING This chapter applies equally to MEGAPLEX, MEGAPLEX/2 and MEGAPLEX/RS. The MEGAPLEX serial I/O subsystem supports a wide variety of devices (both DCE and DTE), a range of cables from 4-wire RJ-11 to 10-wire RJ-45 and several different types of end connectors (DB-25, DB-9 and RJ-11). With careful attention to the information presented below, and the optional use of a breakout box, the correct pin connections for the installation should be assured.
The ports connected to link jack A is the first set of ports, to link jack B is the second set of ports, and so on. For example, under the UNIX 3.2 device driver, ports connected to link jack A are ttyaa through ttyax, ports connected to link jack B are ttyba through ttybx, and so forth. Note that cluster multiplexers may be connected to any link jack; however, care must be taken in the software to ensure that the proper set(s) of devices have been enabled.
When making cables, note that the RD(+) and RD(-) signals must be twisted together, as are the TD(+) and TD(-) signals (see Figure 3-2). With two-twisted-pair wiring, each cluster multiplexer can be located up to 2500 feet from the host controller. Flat modular cable may also be used for distances up to ten feet; such a ten foot cable is also enclosed with each cluster multiplexer. Figure 3-2.
Wiring CMX-24 to Peripheral Devices The CMX-24 cluster multiplexer provides standard RS-232 DTE signals on 24, 10-pin, RJ-45 modular jacks, one for each device to be connected. The pinouts for these jacks are shown in Figure 3-3. Several items must be noted: ● The jacks on the CMX-24 all face towards the center of the product; thus the pinouts may seem to be opposite each other. Refer to Figure 3-4 for the modular jack wiring orientation.
Figure 3-4. CMX-24 modular jack orientation Device Wiring Depending on the specific signal requirements of the system peripheral devices, 3-, 4-, 7- or 9-wire connections can be made. The figures below show these various options. Three Wire Connection For terminals and printers using XON/XOFF flow control. CMX-24 Cluster Multiplexer DB-25 Pins Figure 3-5.
Four Wire Connection For terminals and printers using pin 20 hardware flow control. CMX-24 Cluster Multiplexer DB-25 Pins Figure 3-6. Pinouts for a terminal or printer using hardware flow control Seven Wire Connection For full modem control signals (if RI and DSR are not required for your application). CMX-24 Cluster Multiplexer DB-25 Pins Figure 3-7.
Nine Wire Connection For full modem control signals. CMX-24 Cluster Multiplexer DB-25 Pins Figure 3-8.
Modular Cables RJ-11 modular cable is the flat cable used for wiring telephones inside of buildings. The cable is terminated at each end with an RJ-11 modular plug (connector) which is inserted into the modular jack of an appropriate wiring module. Standard modular cables available from Equinox or wiring distributors are reversing; that is the pins are reversed on each end (so that pin 1 on one end is connected to pin 6 on the opposite end, etc.).
Modular Adaptors Modular adaptors convert modular jacks to DB-25 (RS-232) connectors. Use the following guide in conjunction with the documentation provided with the computer equipment to select the correct modular wiring accessories. Part No. Connector 6-wire modular adaptors 210036 DB-25 DCE male 210037 DB-25 DCE female 210026 DB-25 DTE male 210027 DB-25 DTE female 210038 DB-9 female 8-wire modular adaptors 210051 DB-25 DCE male Connect To terminals, printers, etc.
Figure 3-10.
Figure 3-11.
Wiring CMX-24D to Peripheral Devices The CMX-24D cluster multiplexer provides standard RS-232 DTE signals on 24 DB-25 connectors, one for each connected device. Note the following items: ● The signals for all 24 connector jacks are identical to one another as shown in Figure 3-12. ● The jacks on the CMX-24D all face towards the bottom of the product as shown in Figure 3-13.
Figure 3-13. CMX-24D DB-25 connector orientation. CMX-24D Connector Pinouts Figure 3-14 shows the pinouts for one CMX-24D cluster multiplexer DB-25 female connector. All 24 connector jacks are identical. Figure 3-14. CMX-24D Connector Pinouts Device Wiring Device wiring is dependent on the specific signal requirements of the system peripheral devices. Cable connectors plugged into the CMX24D connector jacks must have a male DB-25 connector.
28 MEGAPLEX Hardware Reference Manual
APPENDIX A DOCUMENT CHANGE REQUEST At Equinox we are always striving to make our product manuals accurate and easy to use. If you have an improvement to suggest or find an error in this manual please let us know.
30 MEGAPLEX Hardware Reference Manual
APPENDIX B TECHNICAL SUPPORT PROCEDURES Equinox Systems makes every effort to ensure that each MEGAPLEX subsystem is of top quality. All MEGAPLEX subsystems are burned in for 72 hours and must pass the test of continuous error-free data flow on all ports simultaneously at 38.4 Kbps.
32 MEGAPLEX Hardware Reference Manual
Index Symbols D 560047 5 6386.
L R Link cluster multiplexer Link cable 4 Link jacks 15 15 Reference Diskette 12 Reversing cable 22 RS-232 15 S M MCC 24x4 Host Controller 2 MEGAPLEX 12, 15 MEGAPLEX/2 12 MEGAPLEX/RS 1, 3, 8, 12, 14 MEGAPORT/2 12, 14 MEGAPORT/RS 14 Micro Channel 1, 12 Modem 20 Modem control signals 15 Modem wiring 19 Modular adaptors 23 Modular cable 17, 18, 22 Modular wire adaptors 4, 16 Mounting bracket 15 O Option Diskette Ordering Guide 12 15 P SCO XENIX 5 SMIT 14 SVR4 STREAMS 3 T Technical Support 31 Termin
