Installation manual

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First model, introduced 1995
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Introduced 1996; similar in appearance to the 9010.
Supported linking multiple carriers for larger arrays of phones, up to 18 total.
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New “Pocketphone,” smaller handset.
Introduced 1997.
Emulates 12 button set, through use of shift keys (only 4 actual line buttons, but 12
display indicators.)
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Introduced 1997
Support for up to 24 phones using 4 carriers. Same Pocketphone form-factor.
Transmitter power reduced from 325mw max to 160mw, but additional 3 dBm
receiver sensitivity.
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Introduced 1999.
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4  ' 4 
Introduced 1999.
Adds Dual Zone support. Handset can choose between two different radio
transmitters, allowing greater geographic coverage in larger sites.
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Introduced 2001
Not backwards compatible with MDW 9000-9031 phones.
Uses new Dual Radio Module (two handsets matched to one module.
Supports Dual Zone operation for greater geographic coverage.
No carrier required for Dual Radio Modules; modules are linked by cable to retain the
system approach.
Channel spacing increased, fewer total channels available (25 dynamically allocated
out of 64 possible.)
As can be seen, the TransTalk series has undergone steady improvement.