HP EISA/PCI Multiplexer Family Cabling, Diagnostics and Troubleshooting Manual Edition 1 J3592-90001 February 1999 Printed in: United States © Copyright 1999 Hewlett-Packard Company
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Hewlett-Packard system verification tests were conducted with HP-supported peripheral devices and cables, such as those received with your system. Changes or modifications to this equipment not expressly approved by HewlettPackard could void the users authority to operate the equipment. Where applicable, use a UL listed type SVT or SJT detachable power cord. For Canada This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Safety Information Warning All Inputs/Outputs are Safety Extra Low voltage (SELV) circuits. Warning Replace only with the same type and rating of fuse: F2-125-5A Caution The hardware contains electronic components that can be damaged by static electricity. To avoid damage, follow these guidelines: • Store the hardware in its conductive plastic bag. • If possible, work in a static-free area. • Only handle circuit boards by the edges. • Do not touch electronic components or electrical traces.
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Table of Contents 1. Overview ................................................................................ 11 Hewlett Packard EISA/PCI Multiplexer Family .................... 12 Mux Cards .................................................................. 13 Mux 64 Card ............................................................... 14 Mux 8 Card ................................................................. 14 Peripheral Cabling...................................................... 15 Port Modules .
5. Port Naming and Numbering .................................................47 Overview ..............................................................................48 HP-UX Port Assignments ...............................................49 HP-UX Port Names .........................................................49 Multiple HP Mux Card Installations .............................53 6. Troubleshooting and Diagnostics .........................................55 Overview ................................
1 Overview 11
Overview Hewlett Packard EISA/PCI Multiplexer Family Hewlett Packard EISA/PCI Multiplexer Family The Hewlett Packard EISA/PCI Multiplexer (Mux) is a high-speed serial communications multiple port product. It consists of several different modular components configured in a variety of combinations to satisfy most applications.
Overview Mux Cards Mux Cards The Mux Card occupies a single EISA or PCI slot in the host computer and provides the intelligent communications functions to “off-load” the CPU serial communications processing tasks.
Overview Mux Cards Mux 64 Card Figure 1-1 illustrates a Mux 64 Card. This card is capable of controlling the operation of up to 64 high speed serial ports. Figure 1-1 Mux 64 Card Mux 8 Card Figure 1-2 illustrates a Mux 8 Card. This card is capable of controlling the operation of up to 8 high speed serial ports. Up to four Mux 64 Cards per system or three Mux 64 Cards and one Mux 8 Card are supported per system.
Overview Mux Cards Peripheral Cabling Peripheral devices (such as terminals, printers, modems, bar code readers, cash registers, etc.) are connected to fan out cables or port modules located outside of the computer system. Mux Port modules require an AC/DC power supply. Figure 1-3 illustrates a basic 16-port configuration. A4-foot (1.2 m) host cable is supplied for connecting the port module(s) to the Mux 64 Card.
Overview Port Modules Port Modules Port modules are available with either DB-25 or RJ-45 female port connectors. Both types of port modules may be freely intermixed on a host cable. A maximum of 4 port modules (64 ports) is permitted for each Mux 64 card.
Overview Fan Out Cable Fan Out Cable Mux 8 Cards have an RJ-45 RS-232 fan out cable. Each port on the fan out cable is a RJ-45 type connector. Figure 1-5 illustrates a Mux 8 Card connected to a fan out cable. Figure 1-5 Mux 8 Card with Fan Out Cable RJ-45 to DB-25 adapter cables of various lengths can be built and used to connect the fan out cable ports to various peripheral devices. See Chapter 4 for wiring information. The J2484A port module and fan out cable use standard RS-232 pinouts.
Overview Fan Out Cable 18
2 Install Mux Card 19
Install Mux Card Overview Overview The procedures outlined in this chapter are applicable to the HP EISA Mux 8 Card and Mux 64 Card and the HP PCI Mux 8 Card and Mux 64 Card. Warning 20 Before performing any of the following installation procedures, refer to the specific HP Server or workstation documentation for any safety precautions.
Install Mux Card EISA Mux Installation Procedure EISA Mux Installation Procedure When adding new EISA Mux Cards to an existing system, use the following steps to install the hardware and software: • List each card and the number of the EISA slot in which it will be installed. • Install the EISA Mux software using the swinstall program. • Run the eisa_config program to add the EISA ID configuration to the slot number of each new card.
Install Mux Card PCI Mux Installation Procedure PCI Mux Installation Procedure When adding new PCI Mux Cards to an existing system, use the following steps to install the hardware and software: • Install the PCI Mux software using the swinstall program. • Shut down the system. • Install the Mux Cards in the appropriate slots and connect the port modules and power supplies, if any. • Power up the system. Device files will be created automatically. • Enter the command below to check for Mux Card activation.
Install Mux Card PCI Mux Installation Procedure For additional information, refer to the appropriate HP 9000 systems I/O Card Upgrade Guide, Configuring HP-UX for Peripherals, HP 9000 Managing HP-UX Software with SD-UX manual, the EISA/PCI Mux Quick Installation Card, and the HP-UX Systems Administration Tasks manual.
Install Mux Card PCI Mux Installation Procedure 24
3 Install Port Modules, Fan Out Cable & Power Supply 25
Install Port Modules, Fan Out Cable & Power Supply Overview Overview This chapter describes the procedures to install port modules and connect fan out cables to HP EISA/PCI Mux Cards. The procedure to install the power supply J2483-60010 for EISA/PCI Mux port modules (J2484A/J2485A/J2501A) is also described.
Install Port Modules, Fan Out Cable & Power Supply Mate and Mount Port Modules Mate and Mount Port Modules Multiple port modules mate together to permit simple expansion of the entire system without disassembling the computer. Included with each port module are two L-shaped coupler brackets and twelve screws (8 black-anodized and 4 nickel-plated). Mate and mount the port modules using the following procedure: 1. Group the modules by mating them together as shown in Figure 3-1.
Install Port Modules, Fan Out Cable & Power Supply Mate and Mount Port Modules 2. Attach coupler brackets as shown in Figure 3-2. Use the nickel-plated screws to secure the coupler brackets to the back of the port module. Use the black-anodized screws to secure the coupler brackets to the top and bottom of the port modules. Figure 3-2 Coupling and wall mounting two port modules 3. Also included with each port module are two wall mounting brackets and four screws.
Install Port Modules, Fan Out Cable & Power Supply Mate and Mount Port Modules Connecting Port Modules to Mux 64 Card Connect port modules to the Mux 64 Card using the supplied host cable, J2483-60013 (4-feet) or J3595-63001 (25-feet) or one you have made (see Appendix A). A maximum of 4 port modules can be connected to the host cable as shown in Figure 3-3.
Install Port Modules, Fan Out Cable & Power Supply Install the Mux Power Supply Install the Mux Power Supply Install the power supply for the Mux port modules (see Figure 3-4) using the following procedure: Figure 3-4 EISA/PCI Mux power supply. Warning: Risk of electrical shock inside the AC/DC adapter. Do not open. Refer to service personnel only. Never remove the AC/DC adapter enclosure 1. Remove the power plug cover protecting the power connector on the port module (Figure 3-5).
Install Port Modules, Fan Out Cable & Power Supply Install the Mux Power Supply Warning: Always connect the AC/DC adapter to a grounded wall outlet. The power cord supplied with this product has a grounded plug. Always use this power cord or a similar one according to your national code Warning: This AC/DC adapter has been designed to operate on all power systems, including IT power systems.
Install Port Modules, Fan Out Cable & Power Supply Install Fan Out Cable Install Fan Out Cable Install the fan out cable (J2482-60013) by connecting the DB-78 connector to the installed HP EISA/PCI Mux 8 Card (Figure 3-6).
4 Port to Device Cabling 33
Port to Device Cabling Overview Overview This chapter details the pinouts for the ports and cabling needed to connect the communications ports to the peripheral devices. NOTE All RS-232 ports provide a standard RS-232 interface with full modem control signals and surge protection on every signal. All RS-422 ports are data-only with no modem control signals.
Port to Device Cabling DB-25 Port Module DB-25 Port Module DB-25 ports provide standard RS-232 DTE signals on all DB-25 female connectors, one for each connected device (see Figure 4-1).
Port to Device Cabling DB-25 Port Module The pinouts for connectors on the DB-25 port modules are identical (Figure 4-2). Figure 4-2 DB-25 connector pinouts Device Wiring Device wiring is dependent on the specific signal requirements of the system peripheral devices. Cable connectors plugged into the DB-25 port module ports must have a male DB-25 connector. The connector on the opposite end of each cable should mate to the peripheral device port (terminal, printer, personal computer or modem).
Port to Device Cabling DB-25 Port Module Figure 4-3 Cable pinouts - terminals and printers - XON/XOFF flow control Figure 4-4 Cable pinouts - terminals and printers - Pin 20 hardware flow control 37
Port to Device Cabling DB-25 Port Module Figure 4-5 Cable pinouts - full modem control - terminal or printer Figure 4-6 Pinouts for modem cables 38
Port to Device Cabling RJ-45 Port Module and Fan Out Cable RJ-45 Port Module and Fan Out Cable RJ-45 port modules (J2484A) and fan out cable ports provide standard RS- 232 (RS-422 for J2501A port modules) DTE signals on all RJ-45 female connectors, one for each connected device (see Figure 4-7).
Port to Device Cabling RJ-45 Port Module and Fan Out Cable The pinouts for all RJ-45 jacks are shown below (see Figure 4-8). Figure 4-8 RJ-45 jack pinouts NOTE In RS-422 terminology, RX- is sometimes labeled as RX(a) or Receive(a), while TX- is often labeled as TX(a) or Transmit(a). The RX- signal should be attached from the port module to the TX- signal of the device.
Port to Device Cabling RJ-45 Port Module and Fan Out Cable Modular Cables To support device-to-system connections at higher speeds over longer distances, customers may build their own cables using modular components. These cables commonly terminate on one end with an RJ-45 modular plug (connector) which fits into the modular jack on the port module or fan out cable, and on the other end with a DB-25 or DB-9 connector, depending on the type of the device.
Port to Device Cabling RJ-45 Port Module and Fan Out Cable Figure 4-9 RS-232 Modular cable to terminal, printer or PC pinouts Figure 4-10 RS-232 Modular cable to PC DB-9 connector pinouts 42
Port to Device Cabling RJ-45 Port Module and Fan Out Cable Figure 4-11 RS-232 Modular cable to modem pinouts Figure 4-12 shows cabling examples for RS-422 connections between the HP J2501A and common HP terminals. In all cases, the transmit pair of wires and the receive pair of wires should be twisted pairs to minimize crosstalk. Cable lengths of up to 1200 meters are supported for all data rates.
Port to Device Cabling RJ-45 Port Module and Fan Out Cable The cabling scheme in Figure 4-12 may be used for connecting the following classes of devices with HP RS-422 interfaces: HP Terminals: HP2392A/93A/94A/97A and HP700/60, 70, 96, 98 and similar terminals HP Printers: HPC2001A, C2021A LaserJet 4 and 4M printers HPC2401A/2A and other HP serial line printers which have configurable RS-422 interfaces HPC2401A/2A and other related Centronics line printers Please refer to the pinout diagram in the user’s
Port to Device Cabling RJ-45 Port Module and Fan Out Cable Figure 4-13 RS-232 RJ-45 (J2488-60010) pinouts to HP proprietary RJ-45 pinouts Figure 4-14 RJ-45 (J3830-60010) pinouts to HP proprietary DB-25 pinouts 45
Port to Device Cabling Cabling for UPS and Disc Arrays Cabling for UPS and Disc Arrays There are three UPS cabling solutions for the EISA/PCI MUX: 1. For the RJ45 type MUX (J2484A port module or the 8 port MUX card), use a “EISA MUX to HP-PB MUX” converter cable; J2489A RJ45-HP/DB25 converter (J3830-60010) and the default DB25 (5061-2569) UPS cable or the default DB25 cable for disc array. 2.
5 Port Naming and Numbering 47
Port Naming and Numbering Overview Overview After you have successfully installed the HP EISA/PCI Mux Card(s) and device driver and verified that a normal boot message appears, you must configure and enable the ports for login. HP provides the System Administration Management (SAM) utility to allow you to configure and enable ports.
Port Naming and Numbering HP-UX Port Assignments HP-UX Port Assignments For each port on the Mux Card(s), SAM is used to create different devices (i.e. minor number references) for different purposes. For each EISA/PCI Mux Card installed in your system, insf creates devices for all of the ports connected to that mux card. HP-UX Port Names The following devices can be created: 1. Direct connect device. Used for terminals, printers and other devices which do not support or require modem control signals. 2.
Port Naming and Numbering HP-UX Port Assignments Therefore, when direct connect port types are used, the first port on the first port module (or fan out cable) of the first mux card is /dev/tty1a1. The second port on the first port module (or fan out cable) of the first mux card is /dev/tty1a2. The first port on the second port module of the first mux card is /dev/tty1b1. And, the 16th port on the fourth port module of the fourth mux card is /dev/tty4d16, etc.
Port Naming and Numbering HP-UX Port Assignments Figure 5-1 Instance 1 Instance 1, Port module a, Port Names (or fan out cable ports 1 8) Port Module a Port Direct Connect Port Name Modem Dialin Port Name Modem Dial- out Port Name Automatic Caller Dial- out Port Name 1 /dev/tty1a1 /dev/ttyd1a1 /dev/cul1a1 /dev/cua1a1 2 /dev/tty1a2 /dev/ttyd1a2 /dev/cul1a2 /dev/cua1a2 3 /dev/tty1a3 /dev/ttyd1a3 /dev/cul1a3 /dev/cua1a3 4 /dev/tty1a4 /dev/ttyd1a4 /dev/cul1a4 /dev/cua1a4 5 /dev/t
Port Naming and Numbering HP-UX Port Assignments Figure 5-2 Instance 1 HP Mux 64 Card 1, Port Module d, Port Names Port Module Port Direct Connect Port Name Modem Dial-in Port Name Modem Dial-out Port Name Automatic Caller Dial-out Port Name 1 /dev/tty1d1 /dev/ttyd1d1 /dev/cul1d1 /dev/cua1d1 2 /dev/tty1d2 /dev/ttyd1d2 /dev/cul1d2 /dev/cua1d2 3 /dev/tty1d3 /dev/ttyd1d3 /dev/cul1d3 /dev/cua1d3 4 /dev/tty1d4 /dev/ttyd1d4 /dev/cul1d4 /dev/cua1d4 5 /dev/tty1d5 /dev/ttyd1d5 /dev/c
Port Naming and Numbering HP-UX Port Assignments Multiple HP Mux Card Installations The number and type of cards that can be installed in any system is system dependent. When this manual was written, the following restrictions applied: • For D-Class systems, only one Mux 8 card can be installed due to a limit on 12 volt power supply. • For V-Class systems, only one PCI Mux 64 card is supported. Please see the recent system configuration guide for current restrictions.
Port Naming and Numbering HP-UX Port Assignments 54
6 Troubleshooting and Diagnostics 55
Troubleshooting and Diagnostics Overview Overview This chapter provides instructions for troubleshooting terminals, printers and modem installations after the ports are configured and enabled. It also describes how to run diagnostic program emux_diag. NOTE emux_diag and emux_tty work with both EISA Mux cards as well as PCI Mux cards.
Troubleshooting and Diagnostics Troubleshooting Troubleshooting Following are some of the problems which may be encountered due to improper configuration of ports. Excessive Frequent getty Spawning Problem: A console message similar to the following appears: ‘tty1a1’ getty keeps dying. There may be a problem Cause: This message usually indicates that the incoming CD signal connected to a modem control port with CLOCAL set keeps toggling.
Troubleshooting and Diagnostics Troubleshooting Tests: 1. Log onto the console as root and verify that the port is enabled by executing emux_diag and selecting Port Status - Breakout Box to verify that the port is open. 2. Verify that the proper getty def entry has been selected for the port in the/etc/inittab file. Execute the following command (substituting the port in question for tty1a1) from the console to display the terminal profile.
Troubleshooting and Diagnostics Troubleshooting • The port and printer are mismatched on baud rate, character size or parity • Printer losing stty settings after closing port Tests: 1. Use emux_diag Diagnostics to send data to the printer. Verify that cables and connectors are attached firmly and the printer is powered on and placed on-line. 2. If no data prints in step 1 above, check the port by placing a terminal in place of the printer and use emux_diag Diagnostics to send data.
Troubleshooting and Diagnostics Troubleshooting ACU cul1a16 2400 hayes NOTE Modem dial-in entries are normally created by using SAM. 2. Verify that the serial port works by testing it with a terminal. 3. Make sure the cable connection from the port to the modem is using the correct cable and adapter. The most common modem installation problem is an incorrectly configured cable or adapter. 4.
Troubleshooting and Diagnostics Troubleshooting Probable Cause: The /usr/lib/uucp/devices file is not setup correctly. Error Message: DEVICE LOCKED Probable Cause: A lock file exists in the /usr/spool/uucp directory. If no one else is using the modem, remove the lock file and try again. Error Message: CAN’T ACCESS DEVICE Probable Cause: The dial-out port cannot be opened. Check the /dev directory for the port’s existence, ownership and permissions.
Troubleshooting and Diagnostics Diagnostics Diagnostics The HP emux_diag utility is a stand-alone program providing the user with the ability to check status and verify port configuration. It also provides several diagnostic operations.
Troubleshooting and Diagnostics Running emux_diag Utility Running emux_diag Utility The following conventions are used when running the emux_diag utility: 1. Arrow keys are used to move between menus and menu selections. 2. Use the Esc (escape) key to move out of sub-menus. 3. Pressing the Return key selects the highlighted menu item. 4. Pressing the F1 function key displays a context sensitive help. 5. To exit from emux_diag, highlight Quit on the main menu and press Return.
Troubleshooting and Diagnostics Driver Status Menu Selections Driver Status Menu Selections As shown in Figure 6-1, the Driver Status pull down menu is displayed with the following selections: Driver Status Board Status Counters Topology and the cursor is highlighting the Driver Status selection.
Troubleshooting and Diagnostics Driver Status Menu Selections Driver Status Press Return key. The current configuration of the device driver is displayed (see Figure 6-2). Use this selection to view the device driver version.
Troubleshooting and Diagnostics Driver Status Menu Selections Board Status Highlight Board (card) Status and press Return key. Card specific information (see Figure 6-3) including type, buffer block starting location, buffer size and bus slot location is displayed. If there is more than one board installed in the system the additional boards will be displayed here.
Troubleshooting and Diagnostics Driver Status Menu Selections Counters Highlight Counters and press Return key. The Select Port Group screen is displayed (see Figure 6-4). Each group selects 16 ports. Figure 6-4 Select port group menu Highlight the desired group (e.g. ports b1 through b16) and press Return key. Up to 16 ports are viewed at a time (see Figure 6-5). The Counters screen is updated in real-time, runs continuously and can be reset.
Troubleshooting and Diagnostics Driver Status Menu Selections Topology Highlight Topology and press Return key. A pictorial representation of a host adapter card and port modules attached to the host adapter card is displayed (see Figure 6-6). The topology display is useful for troubleshooting problems with the host cable. To exit Topology, press Esc. NOTE A J2484A or J2485A port module will be displayed as “PM16” on the Topology screen.
Troubleshooting and Diagnostics Driver Status Menu Selections Port Status Menu Selections The second menu selection on the main menu is Port Status. There are four menu choices under this heading: Breakout Box Data Scope Termio Register Dump Breakout Box Highlight Breakout Box and press Return key. The name of the currently selected device port name is displayed as shown in Figure 6-7.
Troubleshooting and Diagnostics Driver Status Menu Selections If the port name displayed in the device selection box is incorrect, enter the correct port name in the space provided on the screen. Press Return key and the lead status for the selected port is displayed as shown in Figure 6-8. (Or use the arrow key to select Data Scope) Figure 6-8 Breakout box display This selection displays the RS-232 lead status . You can check for modem CD problems as well as the status of output flow-control.
Troubleshooting and Diagnostics Driver Status Menu Selections Data Scope Highlight Data Scope and press Return key. The Data Scope setup screen (see Figure 6-9) is used to establish the parameters identifying the data selected for display: • Select the Device Port Name (i.e. /dev/tty3al). • Select the type of monitor you want [INPUT, OUTPUT, FULL DUPLEX]. • Select the Buffer Full options [Continue, Stop]. • Select the Display Options [Data Only, Show Detail].
Troubleshooting and Diagnostics Driver Status Menu Selections After the data capture parameters are set up, go to Start Scope or Review Data and press the Return key. The data monitor screen shown in Figure 6-10 is displayed.
Troubleshooting and Diagnostics Driver Status Menu Selections The data monitor screen shows the actual characters as they are being sent and/or received by the device. This screen displays both hexadecimal and ASCII data. Press any key and theCaptureData screen is displayed (see Figure 6-11). Figure 6-11 Data scope capture data screen The data can be captured and saved for later review. The default file name for input data is /tmp/eqnin and the default file name for output data is /tmp/ eqnout.
Troubleshooting and Diagnostics Driver Status Menu Selections Termio Highlight Termio and press Return key. This selection displays general terminal interface data associated with the port (see Figure 6-12). It is similar to the stty command in that it displays all enabled termio flags.
Troubleshooting and Diagnostics Driver Status Menu Selections Register Dump Highlight Register Dump and press Return key. This option (see Figure 6- 13) displays a real-time window of the on-board registers.
Troubleshooting and Diagnostics Driver Status Menu Selections Diagnostics Menu Selections The third menu selection on the main menu is Diagnostics.
Troubleshooting and Diagnostics Driver Status Menu Selections Loopback Highlight Loopback and press Return key (see Figure 6-14). Figure 6-14 Diagnostics loopback test The loopback test is designed to test the primary components of the adapter cards and their functionality. The test can be run on a single port or a group of ports at the same time. The test does not require that the selected port(s) have the transmit and receive pins wired together.
Troubleshooting and Diagnostics Driver Status Menu Selections Send Highlight Send and press Return key (see Figure 6-15). This display screen allows you to send a barber pole pattern to the selected port. It writes all printable alphanumeric characters out of a port. This test is useful when adding a new device and a continuous stream of data is required to resolve wiring issues. The port configuration is 8 data bits, 1 stop bit and no parity.
Troubleshooting and Diagnostics Driver Status Menu Selections Quit The last menu selection on the main menu is Quit. To quit the emux_diag utility program, highlight the Quit main menu selection and press Return key (see Figure 6-16). The screen returns to the UNIX prompt.
Troubleshooting and Diagnostics Driver Status Menu Selections 80
A Host Cable 81
Host Cable Overview Overview This chapter details the host cable general specifications and cabling scheme for connecting the EISA/PCI Mux 64 port card to port modules.
Host Cable Host Cable Specifications Host Cable Specifications Figure A-1 details the host cable general specifications and cabling scheme for connecting the EISA/PCI Mux 64 port card to the first port module.
Host Cable Host Cable Specifications 84
Index Symbols /, 59 Numerics 10, 41 200-feet host cable, 15 4 nickel-plated screws, 27 4-foot (1.
Index Port is not enabled, 57 Port Module, 10 Port module, 14 Port naming and numbering, 47 Port parameters incorrect, 57 Port pinouts, 34 Port Status Menu, 69 Power LED, 31 power LED, 31 power plug cover, 30 Printer overflows after printing correctly, 58 Printing is garbled, 58 Problems logging in, 57 PS-4 power supply, 13 troubleshooting, 56 tuning, 61 twisted-pair, 40 U UNIX port assignments, 49 UPS Cabling, 46 V Verify module LEDs, 31 W wall mounting brackets, 28 X XON/XOFF, 59 Q Quit, 79 R Register
