Nortel Networks DCT1900 manual Building Corner, Mounting Instructions

Technical Product Manual - DCT1900

Installation Instructions, Base Station – KRC 101 1371

locations where coverage area and range need to be optimized, it is important to mount Base Stations several wavelengths (~6-18") away from building surfaces, and in the case of large metal building surfaces, absolutely imperative.

The components within the Outdoor Base Station Mounting Kit provide this needed functionality. The key components consist of two Mounting Plates and two Mounting Arms. The Small-Pattern Mounting Plate is always used on the weatherproof housing (to avoid placing too much metal near the Base Station). The Large-Pattern Mounting Plate is secured to the building surface. It has a larger surface area with several hole spacings for flexibility in mounting on varied and irregular building surfaces. The Mounting Arms are supplied in 3 lengths depending on the application need. The combinations of these components provide the installer the ability to securely mount the housing on almost any axis or location, as can be seen in Figure 16-12.

Building

Side

View

Weatherproof

Housing

Base Station

Mounting

Arm and

Plates

Building

Corner

Building surfaces andTop View architectural shapes present

challenges for mounting. This mounting system provides a wide variety of options for positioning and mounting the Base Stations.

Approximate dimensions

12.0 shown. Housing sizes vary

according to supplier

Corner mounting capitalizes on omnidirectional radiation pattern from Base Station, avoiding "blind spots" around building corners.

6.0

Fig. 16-12 Mounting Views

In many outdoor and campus applications, coverage is a major issue. To minimize the number of Base Stations, they need to be strategically placed to create the best overlapping radio cells. For example, it is common to place Base Stations at the corners of tall buildings to capitalize on the omnidirectional radiation characteristics of the unit. The Mounting Kit provides this capability.

Mounting Instructions

1. Secure Large Pattern Mounting Plate to the Building Surface

The mounting plates and arm are made of lightweight aluminum, and the Weatherproof Housing (including the Base Station) weighs approximately 7 lbs. To insure structural integrity and safety, the mounting plate must be secured firmly to the building surface using at least four of the 3/8" dia. stainless steel fasteners provided in the kit.

Install-DCT1900/R8/mw	16-13
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