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INSTALLATION
1-
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__________________
~[KJ
INTRODUCTION
This section has information for installing and checking the operation of the MUX.
DETERMINING CURRENT REQUIREMENTS
The MUX circuit card obtains its operating voltages from the host computer power supply through the
1/0 channel. Before installing the MUX, it is necessary to determine whether the added current will
overload the power supply. The current requirements of the MUX are listed in the power require-
ments part of Table 1-1. Current requirements for all other I/O cards can be found in the ap-
propriate Technica: Reference Manuals.
FIRMW ARE (EPROM) INST ALLA TION
I
CAUTION
I
SOME
OF THE COMPONENTS
USED
IN THIS
PRODUCT ARE SUSCEPTIBLE TO DAMAGE BY
STATIC DISCHARGE. REFER TO THE SAFETY
CONSIDERATIONS INFORMATION AT THE FRONT
OF THIS MANUAL BEFORE HANDLING THE CARD
OR REMOVING OR REPLACING COMPONENTS.
The EPROMs are installed in sockets on the MUX card as shown in Figure 2-1. Be sure that they are
installed properly, and that they have not been either damaged or loosened from their sockets during
shipping.
Additionally, when installing or removing EPROMs, guard against either bending or breaking pins on
components. These pins also can become folded between a component and its socket, which could
result in intermittent operation of the MUX. In most cases, either bent or twisted pins can be
straightened with careful use of needle-nose pliers.
2-1
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