Jim,
  the base with the flex cable is called a non-unified chassis. It has a 
separate control shelf (back plane).

The other type is a unified chassis. Unified chassis' are generally not 
continuous duty, They utilize
a mobile style heat sink.

A unified chassis has the control shelf between the exciter and receiver 
interconnect boards.
The units shipped as repeaters have additional filtering on the 
interconnect boards for duplex operation.

The non-unified units have an additional filtering shield that attaches 
between the flex and the
interconnect boards.

John


At 12:26 PM 12/5/03, Jim Cicirello wrote:
>Hello to Kevin and the group:
>
>Can you tell me if the difference in the physical appearance of the
>backplanes on the Micor Base Stations effect the conversion
>instructions posted on this site?
>I am referring to the difference in appearance between two Micor
>Units I have looked at. One has the backplace in the center and I am
>told that is a Cont. Duty Base. The other Micor Base has ribbon cable
>from the TX to the RX to the Backplane. The backplanes is on the
>bottom of the cabinet and is much shorter in height.
>Will the same conversion instructions posted apply to both backplains?
>
>Thanks and 73
>
>JIM   KA2AJH
>
>
>
>
>
>
>
>
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