Installation Precaution

On the road use

The E 111/112 are sturdily constructed with an aluminum die-cast front panel that is reinforced by means of an iron plate attached to its back. To ensure that strength is maintained during their transportation from one place to another, however, you should also reinforce each unit from the back of the rack with a special support bracket. This can be accomplished by removing cord-hangers on the rear panel, and screws that hold the rear panel to chassis, and fitting the special support brackets through the holes.

Top view

Side view

Functions

Center Frequency Control

Special support bracket

The Center Frequency (fc) of each frequency band is continuously variable within a range of one octave (between 0.7fc and 1.4fc). Thus the overall frequency response may be delicately adjusted. For example, if the 1kHz center frequency control has a 12dB boost, the frequency response looks like that of curve 1. If the center frequency control is turned anticlockwise, the response will be like curve 2, while in the case of it being turned f u l l y clockwise, the frequency response will be as shown by curve 3.

Bandwidth Control

The "Q"of each filter is continuously variable from 1.5 to 8. If the bandwidth control is turned clockwise, the bandwidth is adjusted to approximately a one octave range, while in the case of it being turned fully anticlockwise, the bandwidth is adjusted to aproxi- mately a 1/6 octave range as shown in the right figure.

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Viking Electronics E111 Installation Precaution, Functions, On the road use, Center Frequency Control, Bandwidth Control

E111 specifications

The Viking Electronics E111 is a versatile and reliable entry phone designed to enhance security and communication in various settings, including schools, businesses, and residential buildings. This product stands out for its robust construction and user-friendly features, catering to users seeking both durability and functionality.

One of the main features of the E111 is its high-quality communication capabilities. It is equipped with a built-in speaker and microphone, allowing for clear two-way audio communication between the entry point and the designated answering location. This is particularly beneficial in situations where immediate interaction is necessary, such as for visitor access or emergency notifications.

The E111 utilizes advanced technology to ensure reliability and ease of use. It incorporates a touch-tone keypad, making it easy for users to dial specific numbers without requiring extensive training. The keypad's design is user-friendly, featuring large buttons that are easy to see and press, even in low-light conditions.

Another notable characteristic of the Viking E111 is its robust construction. The unit is housed in a rugged, weather-resistant enclosure that can withstand harsh environmental conditions. This makes it suitable for outdoor installations where exposure to moisture and temperature fluctuations is a concern. The durable design ensures that the E111 will provide reliable service over time.

In terms of installation, the E111 is designed for straightforward integration into existing systems. It offers multiple mounting options, which can accommodate various installation preferences and locations. The unit can be connected to a standard telephone line or integrated into a larger intercom system, offering flexibility to suit the specific needs of any facility.

Moreover, the E111 features adjustable volume controls, allowing users to customize audio levels for optimal clarity. This adaptability is especially useful in environments with varying noise levels, ensuring effective communication regardless of surrounding distractions.

Overall, the Viking Electronics E111 entry phone is an ideal solution for enhancing security and communication at entry points. Its combination of advanced technology, user-friendly features, and robust construction makes it a popular choice for a variety of applications. Whether it is used in a commercial building, a school, or a residential setting, the E111 delivers reliable performance and ease of use for both residents and visitors alike.