Instruction/ maintenance manual of the product HP 28642A HP (Hewlett-Packard)
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HP 28642A HP-PB SCSI HP 28655A HP-PB SCSI/ Parallel.
HP HP 5960-3126 El091.
@Hewlett-Packard Company, 1991. AI1 rights rcservcd, Hewlett-hckard Company makes M wsmmty of any kind with regard to this material, btcb~dittg. but not Ihttited lo.
Installation and S&vice HP28642A HP-PB SCSI HP 28655A HP-PB SCSI/Parallel.
HP 28642A and HP 28655A at a Glance A- Extractor lever. B - Retaining (captive) screw. C - Self-Test Fail LED (yellow), normally off. D - SCSI port, SO-pin high-density connector, single-ended signals. E - SCSI bus termination resistors, single in-line packages (SIPS).
Product Description The HP 2S642A/HP 2S655A HP-PB adapter is a computer interface card for use in HewIett-Packard computers that use the HP-PB (HP Precision Bus) backplane. The HP 2S642A product is for MPE XL systems. The HP 2S655A product is for HP-UX systems.
In This Book This manual contains installation and service information for the: n HP 28642A HP-PB SCSI adapter for MPE XL systems, and I HP 28655A HP-PI.3 SCSI/Parallel adapter for HP-UX systems. Thii manual is organized as follows: Chapter 1 provides installation instructions.
Table of Contents Chapter 1. Installing the HP 2s642Al28655A Adapter 1, Prepare to Install the Adapter Card ......................... 1-3 Observe Antistatic Precautions .......................... l-3 Verify Product Contents ...........................
Chapter 2. Service Information Field Replaceable Units ................................. 2-3 Exchange Assembly ................................ 2-3 Board Components ................................ 24 Other FRUs .................................... 24 Troubleshooting Tools .
1 Installing the HP 28642A/28655A Adapter.
lnstalllng the HP 28642A/28655A Adapter This chapter contains installation instructions for the HP 28642A/28655A HP-PB SCSI/Parallel adapter card. Figure l-l illustrates a typical installation, The instructions are organized into the eight primary steps listed below.
1. Prepare to Install the Adapter Card Before installing the SCSI/parallel adapter card, perform the following: 1. Observe antistatic precautions. 2. Verify product contents. 3. Record adapter card identification information. 4. Gather tools and accessories needed.
Record Adapter Card Identification Information Should your card require service, its part number and date code may be needed by HP service personnel. This information is provided on a labeled sticker on the card. An example of a labeled sticker is illustrated in figure 1-2.
Note You should have all of your system and peripheral device manuals available for refirence. There may be special system or device dependent requirements that are not noted here. Slot Divider Since this adapter card is a “single-high” card, it requires a single-high slot (Eurocard standard slot size 3U).
2. Shut Down the System and SwZtch Off the Computer 1. Before installing the card, ensure that the operating system is shut down. Consult your computer system manuals for proper shutdown procedures to avoid corruption or loss of data. 2. Ensure that power to the host computer is off.
3. Check the Card’s Hardware Configuration Hardware settings for the SCSI/parallel adapter apply to the SCSI port only. There are no hardware settings for the parallel port. Figure 1-3 shows the applicable hardware. To check the card’s hardware, perform the following: 1.
Set the Desired Parity-Checking CapabUity AU devices on a SCSI bus must have the same parity-checking capability. If any device on the SCSI bus does not generate parity, then all devices on the bus, including the adapter, must not check parity. (Although parity-checking is selectable, the adapter always generates parity.
Set the SCSI Bus Address There may be up to eight devices (which includes the SCSI adapter) connected to a SCSI bus. Each device must have a unique address, from 0 to 7. The bus address determines the device’s priority on the bus. Seven is the highest priority and zero is the lowest priority.
Verify that Resistor Packs are Properly Installed A SCSI bus has two ends between which SCSL devices are attached. Each end of a SCSI bus must be terminated with a resiitor network, or “terminator”. The adapter card contains two resistor packs mounted in sockets on the card.
4. Install and Connect the Card The HP-PB cardcage accommodates two sixes of cards: single-high (Eurocard standard 3U) or double-high (6U). The SCSI/parallel adapter is a single-high (3U) card and requires a single-high slot. HP computers are normally shipped with single-high slots.
m Authorized or recommended slots for the SCSI/parallel adapter. - The SCSI/parallel adapter is a standard HP-PB card. Typically, it can be installed in any stamiard HP-PB single-high (3U) slot. However, some systems may contain special slots that do not support this card, or may contain particular slots that are reserved for thii card.
n Computer hardware limitations for l/O cards, if any. The HP-UX and MPE XL operating systems support the use of this card. However, the particular computer model into which this card is installed may require special configuration rules due to power supply or slot limitations.
Prepare the Slot For Use To prepare a slot, you must first remove the metal slot cover. Then, if a plastic frl!er card is installed in the slot, remove it. (Retain slot covers and filler cards- they should be installed when slots are not in use.) If a slot divider is not installed, you must install one.
Removing Filler Cards A plastic “filIer” card is normally installed when a slot is not in use. In some systems, the filler card helps to channel airflow through the cardcage. In these systems, you must remove the filler card before you can install the SCSI/parallel adapter.
3. Press the slot divider until its retention clips clamp onto the locator bracket as illustrated in figure 1-9. Figure 1-9. Slot Divider Mated With Backplane Bracket l-16 Installing the Adapter.
Insert the Card into the Slot To install the adapter into its slot, proceed as follows: 1. Inspect the %-pin connector at the back of the slot on the backplane. Ensure that there are no bent pins. 2. With both hands, grasp the card by its edges or faceplate.
Attach the Card Cables Figure l-10 shows a typical installation with both the SCSI port and parallel port cables attached (the use of the parallel port is not supported for MPE XL systems). CAUTION Do not connect serial cables (for example, RS-232 cables) to the parallel port.
Connect Your Peripheral Device(s) You can connect SCSI devices (single-ended devices only) to the SCSI port, and a parallel communication device to the parallel port. (The parallel port is not supported for use on MPE XL systems.) The following steps are described below: 1.
Set switches or jumpers on your device(s) as appropriate. Be sure each SCSI device has a unique SCSI address. For optimum noise immunity, any device that supplies termination power should be enabled to do so. If at least two devices supply termination power, Locate them at each end of the SCSI bus.
CAUTION Only the two ends of a SCSI bus should be terminated. Excessive or improper termination may overload the termination power circuitry on the SCSI port. This may result in blowing the TERMPWR fuse on the SCSI/parallel adapter, or may damage transceivers on any attached device (including the adapter).
A SCSI Cable Length Example Table l-3 and figure 1-12 demonstrate how to calculate SCSI bus cable lengths for a typical installation. The SCSI 0.5 m cable (HP 92222A) used in the example is available through your HP Sales and Support Office. Other lengths are also available.
Connect Your Parallel Device, If Applicable Output-only parallel devices, such as common printers, can be connected to the parallel port. Figure l-13 and table l-4 show the signals definitions of the parallel port connector. Note For MPE XL systems, do not use the parallel port.
Pin 1 Pin 13 Pin 14 Pin 25 Figure 1-13. Parallel Port Pins Table 1-4. Signal Pin Assignments Pin Number Signal Name In/Out Pin Number Signal Name In/Out 1 nStrobe out 14 nAutoFd out 2 Data1 out 15 nFa.
Pin25 ;. II :: :: :: :: 0 . % Pin 36 Fin 1 Pin 1 25Pin Connector, Host End B-Pin Connector, Peripheral End Figure 1-14. Parallel Cable Wiring Diagram Installing the Adapter l-25.
Turn Power On to Peripherals, Then to the Computer Before turning power on, follow these steps: 1. Verify that a11 cables are connected and securely fastened. 2. Turn power on to your peripheral devices before your computer. Refer to your peripheral and computer installation manuals for information on turning power on.
7. Set Up the Operating System Before you can use your devices, the SCSI/parallel adapter card and peripheral devices must be configured into the operating system. Depending on your system, this may or may not be performed automatically during the boot process.
8. Verify Operation To verify card operation, observe the light indicators: n The yellow self-test LED should be off. n The green termination power LED should be on. In addition, you can check for proper operation of each port by running one of your application programs that writes to or reads from your peripheral device(s).
2 Service Information.
Service Information This chapter provides the following service and reference information: m Field Replaceable Units 8 Troubleshooting Tools H Removal/Replacement Instructions n Reshipment Guidelines .
Field Replaceable Units Field replaceable units (F’FWs) are assemblies or components that are authorized for field replacement. Field replacement of faulty units must be performed by authorized service personnel. See figure 2-l for FRUs associated with the adapter card.
Board Components The foIIowing board components are available for replacement (see figure 2-l for location): PROM (location U52): 28655-81001 Fuse, termination power: 2110-0517 Onboard SCSI terminator.
Troubleshooting Tools Troubleshooting tools are used to identify faulty FRUs. For this product, the following tools are described below B Self-Test failure LED (see figure 2-2) n TERMPWR LED (see figu.
Self-Test Failure LED The Self-Test Failure LED is yellow and will indicate card test failures when used by fhe host system. Card self-test code contained in PROM on the card is uploaded to the host and run under host control. Note The use of the card’s self-test code is system dependent.
SCSIPBA and CENTPBA Diagnostics Standard diagnostics, scsipba and centpba, are available for use by authorized service personnel. For more information on these diagnostics, refer to the system troubleshooting and diagnostic manuals for your particular system.
Table 2-I. Troubleshooting Checklist (continued) Are the SCSI bus terminators correctly installed? Both ends of the SCSI bus require termination. The terminator on the host adapter is installed at the factory. An external terminator is supplied for terminating the last device on the bus.
Removal/Replacement Instructions This section describes removal and replacement instructions for the following items: l The SCSI/parallel adapter n SCSI/parallel adapter components WARNING Unless otherwise noted in your system manuals, removal of the interface card should only be done with power removed from the host computer.
Removal/Replacement of the Card For card removal, follow the procedures below: 1. Before removing the card, ensure that the operating system is shut down and that power to the host computer is off. Consult your computer system manuals for proper shutdown procedures to avoid corruption or loss of data.
Removal/Replacement of Card Components Replaceable card components are socketed to facilitate their removal and replacement. PROM and Termlnation SIPS CAUTION Observe antistatic precautions when handling these components.
To install replacement components, proceed as follows: 1. Identify the proper socket location for the replacement component. 2. Note the half-circle notch or identification mark located on one end of the component.
Note An open fuse condition can be also be determined from the scsipba diagnostic. If another device on the SCSI bus provides termination power, the bus can continue to operate normally. Before replacing the TERMPWR fuse, identify the reason for the failure.
Reshipment Guidelines If any item of the product is to be returned to Hewlett-Packard for any reason, contact your HP Safes and Support Office to coordinate the return. When returning any item, attach a tag that identifies the owner and indicates the reason for shipment.
Technical Specifications Table 2-2 SCSI/Parallel Adapter Technical Specifications General Supported I HP 9bOO Series 600/800 HP-PB computers (HP-UX); Systems HP 3000 Series 900 HP-PB computers (MPE XL).
Table 2-2. SCSI/Parallel Adapter Technical Specifications (continued) Voltage Current (Typical) Power ~tcal) Electrical +5 Vdc 0.75 A 3.75 w + 12 Vdc OA ow -12 Vdc OA ow Length 24 cm (9.4 in) Width Physical 13 cm (5.1 in) Thickness 3.1 cm (1.2 in) Weight 0.
Glossary adapter, adapter card An add-on computer interface card and circuitry that provides the physical connection and data translation between the host computer’s I/O bus and external devices or networks. ANSI American National Standards Institute.
device In this manual, refers to the peripheral units that are attached to the SCSI/parallel adapter card. device adapter See adapter. differential signal Also referred to as “balanced signal”.
host adapter See adapter. HP-PB Hewlett-Packard Precision Bus. The data, control, and addressing signal lines for input/output operation on Hewlett-Packard PA-RISC computer systems. HP-PB is the 32-bit system-architected bus through which the CPU, memory, and input/output adapter cards communicate.
loopback hood A special connector with signal lines configured to allow loopback testing of the adapter card. low-density connector In reference to the SCSI bus, a Xl-conductor connector consisting of two rows of ribbon contacts spaced 2.16 mm (O.OsS in) apart.
SCSI-2 Complies with the SCSI specilication X3.131 - 1990. SCSI-Z provides extensions and further standardization of SCSI-l. SCSI address The octal representation of the unique address (0 to 7) assigned to each device on an SCSI bus. For bus arbitration, higher addresses have priority over lower addresses.
system administrator The person who manages or controls the configuration and operation of a computer system. terminator An assembly that contains a resistive network to terminate the peripheral end of a SCSI bus.
Index A accessories...l-4 adapter configuration...l-7 connecting...1-11 exchange assembly..23 hardware address...&l3 HP-PB specifications...l-12 HP-UX drivers...l-27 inserting into the computer...l-ll, l-17 part number...13,2-3 removaVreplacement,.
C cable connecting to the card...l-18 paraliel...l-3, l-23,2.4 part number...l-3,1-S, l-21 SCSI...l-3,1-18,2-4 SCSI bus length...l-20,1-21 troubleshooting...2-7 card version...14 checklist, troubleshooting..27 components removing and replacing...2-11 replaceable.
electrical specifications..216 electromagnetic specifications..2-16 environmental specifications..516 exchange assembly part number...2-3 F field replaceable units se-e FRUS filler card...l-14 removing...l-15 FRUs...2-3 part numbers...2-4 fuse...24 removaUreplacement.
L LEDs...2-6 troubleshooting...2-5 verifying card operation...l-28 light emitting diodes See LEDs loopback hood...2-4 MPE XL system...2-15 configuration...l-27 0 operating system...l-13 configuration.,.l-27 supported...2-15 P parallel cable...13,1-18,2-4 connecting devices.
power during instailation/removai...l.6,1-19, l-26,2-10 symbol for standard power sIot...l-12 product contents...13 PROMS removaVreplacement..2-11 R removalkeplacement instructions..2-9 adapter card...2-10 board components..2-11 TERMPWR fuse...2-12 replaceable board components.
slot divider..S-4,1-5 instaBiig...l-15 specifications...2-14 storing adapter cards...l-3 switch default settings&S hIcation...1.7 &ylrlbo~ standard power card..&12 system performance considetations...l-l3 system shut down during installation/removal.
Reorder No. or Manual Part No. 5960-3126 El091 Printed on Recycled Paper HEWLETT:,’ PACKARD I llllllll I lllll III lllll llll llllll Ill 11111 II Ill1 Ill1 5960-3126.
An important point after buying a device HP (Hewlett-Packard) HP 28642A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought HP (Hewlett-Packard) HP 28642A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data HP (Hewlett-Packard) HP 28642A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, HP (Hewlett-Packard) HP 28642A you will learn all the available features of the product, as well as information on its operation. The information that you get HP (Hewlett-Packard) HP 28642A will certainly help you make a decision on the purchase.
If you already are a holder of HP (Hewlett-Packard) HP 28642A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime HP (Hewlett-Packard) HP 28642A.
However, one of the most important roles played by the user manual is to help in solving problems with HP (Hewlett-Packard) HP 28642A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device HP (Hewlett-Packard) HP 28642A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
