Best Power Technology Patriot - Communication Port Pinouts
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                         Patriot DB-9  
  
Pin		          Description
---     ---------------------------------------------------------------
 1      Shutdown - A +12VDC signal held for 5 seconds on this pin while
        the UPS is on battery shuts doen the UPS 20 seconds later.
        The UPS will restart after a 10-second delay once normal
        input power is restored. 
 2      n/c 
 3      Inverter Normally Open Contact - Closes to indicate that
        the UPS is on battery power. 
 4      Common - Signal ground for all interface signals and contacts. 
 5      Low Runtime Normally Open Contact - Closes to indicate that
        runtime (battery reserve while in inverter) is low. 
 6      Inverter Normally Closed Contact - Opens to indicate that
        the UPS is on battery power. 
 7      n/c 
 8      n/c 
 9      Chassis Ground        

The "Contacts" consist of open collector circuits capable of switching
up to a +30 VDC 6mA resisitive load. 

This port supports the following BEST interface kits:
      BEST CheckUPS - available for DOS, OS/2, and UNIX	
      Banyan VINES - BIK010B/011B
      IBM AS/400 - BIK003A
      LAN Manager/Server v2.0 - BIK015L 
      Lantastic v4.0 - BIK016L
      Novell UPS.VAP and UPS.NLM - BIK004N/005N/006N/007N
      Prime 2350/2450 - BIK014P