Microtel Series 100 - Manual (Page 7)

C. PHYSICAL SYSTEM INSTALLATION
Mount the system on a wall or other vertical surface, away from and protected from
harsh weather extremes. It is also recommended that the unit not be placed in close
proximity to high voltage (480 V and higher) electrical equipment. Four mounting
holes on the left and right side enclosure flanges are to be used for system mounting.
It is recommended that the system be mounted approximately 5 feet above surface
grade for proper microphone reception in both the speakerphone and intercom mode.
There are three access holes on the bottom of the unit. The left side port is for power
connection to 120 vac. The middle port is for the system's telephone line connection,
and the right side port is intended to be used for the entry of fault monitoring channel
conductors. There is an additional hole in the bottom of the unit, into which the
speakerphone microphone is mounted.
The following figure shows the recommended dimensions to be used in the physical
Installation of the system.
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