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3. Installation
3.1 General
The MiniStat-Four is delivered completely assembled. It’s designed for installation
on a desktop. Mechanical and electrical installation procedures for the MiniStat-
Four are provided in the following sections.
After installing the mux, refer to
Chapter 4
for system-configuration information
and procedures (including sub-channel bit rate, data format, and flow-control-
mode selection).
If you encounter a problem, refer to
Chapter 6
for test and diagnostic instructions.
3.2 Site and Power Requirements
The MiniStat-Four is powered by an external power supply of 9 to 12 V/250 mA.
Use a miniature wallmount power supply to provide the required power. The
power supply connects to the mux by a cable ending in a miniature phone jack
(tip positive, sleeve ground). The MiniStat-Four does not contain fuses, so the
power supply must include a fuse of the appropriate rating.
The mux operates properly in any ambient conditions suitable for operation of
electronic computer equipment and peripherals. It operates without performance
degradation over a wide range of temperatures (32 to 122°F [0 to 50°C]) at relative
humidities up to 95%, noncondensing.
3.3 Setting the Internal Jumpers
The MiniStat-Four has three internal jumpers. Refer to Figure 3-1 and to the
following descriptions.
3.3.1 INIT/NOR J
UMPER
This jumper selects which default set of configuration parameters the MiniStat-
Four loads at power-up. The jumper has two positions:
• NOR (normal operation, the factory-default setting) — The MiniStat-Four
loads the user-selected parameters most recently saved in nonvolatile RAM.
• INIT (initialization) — The MiniStat-Four loads its factory-default
configuration (permanently set at the factory and common to all MiniStat-
Four units).
CHAPTER 3: Installation
