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Add a TN2224 station card to a Definity

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MikeinTx

Vendor
Jun 19, 2012
19
US
I need to add a TN2224 (24 port digital station card to a very old Definity. Definity was installed in the early to mid 1990s.

Do I need to power down the system before installing the card or can I just "plug it in"?

Thanks
 
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