On 10-31-97 Roy J. Tellason wrote to Day Brown... 
 RJ> There was also the UPS that would fit in the space where  
 RJ> your normal power supply went,  and I'm sure that something  
 RJ> like that could be adapted for external battery power. 
Well, maybe. lemme know if you see it again Roy. 
 
The UPS designs I've seen are kinda pricey.  It is a lot cheaper 
to make the power supply part if the input voltage is 48 v DC, 
which is commonly used as battery backup in Telco and other types 
of critical commercial/business applications. 
 
And, then by locking in the user to some higher voltage, they try 
to lock him into using their *proprietary* batteries... in case 
you want more backup time in a small, or home office. 
___ 
 * OFFLINE 1.58 * The Kavorkian Motel: We'll turn your lites out for you. 
--- Maximus 3.01
---------------