Specifications

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MANUAL.STY
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µ EPC-2 HARDWARE REFERENCE
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Hidden: Indexed on 11/6/89. Also removed detail on VGA controller and EXP-MS.
Don't forget to hide hidden text before hyphenating and printing
2. Installation
Before installing your EPC-2, you should unpack and inspect it for shipping
damage.
* do not remove a cover from the module unless you are in a static-free
environment. the epc-2, like most other electronic devices, is susceptible to
esd damage. esd damage is not always immediately obvious, in that it can cause
a partial breakdown in semiconductor devices that might not immediately result
in a failure.
* make sure that the installation process described here is also performed
in a static-free environment.
* the epc-2 contains a delicate hard disk. please handle it with care.
avoid jarring the unit while it is in operation, and do not use excessive force
when inserting and removing the epc-2 in a vxibus card cage.
Before installing the EPC-2 in a VXIbus chassis, you need to decide whether the
EPC-2 is to be the .i.slot 0; .i.system controller;. Every VXIbus system needs
a module that performs the system controller functions, including the standard
VMEbus system controller functions (generation of the 16 MHz .i.SYSCLK; signal,
arbitration of the bus, detection of .i.bus timeout; conditions, and initiation
of the interrupt-acknowledge daisy chain), and the VXIbus slot-0 functions
(generation of the 10 MHz ECL .i.CLK10; signals and control of the .i.MODID;
module identification function).
To configure the EPC-2 as the slot-0 controller or not, there are two things you
need to do:
ù Set jumpers within the unit.
ù Set the SLOT 0 FUNCTIONS field in the BIOS setup screen.
The EPC-2 is originally shipped to be the slot-0 controller. Since this is the
typical use of the EPC-2, you can usually avoid dealing with the configuration
steps described in this section.
Slot 0 / Non Slot 0 Configuration
The EPC-2 is shipped configured as a VXI .i.slot 0 controller;. If this is your
intended use of the EPC-2 (which will usually be the case), you may skip this
section.
To change the configuration of the EPC-2, there are four .i.jumpers; that need
to be set. To locate the jumpers, you first need to determine the revision
level of your EPC-2. If you see accessible jumpers through cutouts in the back,
top, and bottom panels, you have the revised version. Otherwise, you have an
older version.
To change the configuration of a revised-version EPC-2, follow the figure below.
Three jumpers in the back panel and one jumper in the bottom panel need to be
set. The three jumpers control the routing of the .i.CLK10;+ and CLK10- signals
and the single jumper controls connection of the .i.MODID; line to pull-up and
pull-down resistors.
.G.EPC2CJUM.EPS;3";3.52";Postscript
Note that there are only two valid combinations of setting the four jumpers.
Also, the pictures depict the jumpers as seen when holding the unit horizontally
such that the side nearest the floppy disk drive (right side) is up. The set of
jumpers associated with .i.flat-panel display;s is discussed later.
To configure the EPC-2 as the slot-0 controller, you need to:
1. Set the jumpers as shown in the previous diagram.
2. Install the EPC-2 in slots 0 and 1 of your VXIbus chassis.
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