APC VS 50 User Manual

Page of 65
Magnum VS –48 Vdc User’s Manual 
                                     
  Page 12 
 
Figure 3.8-2 Top Shelf GMT Fuse Connections 
 
 
Figure 3.8-3 Bottom Shelf GMT Fuse Connections 
 
3.9.  Monitoring and Relay Output Connections 
 
Front Panel DB9 Connection 
 
The front panel DB-9 connector is used to hook up a standard RS-232 cable (such as APC part 
number
 
0129-XX.  A 0129-6 is included with this manual. ).
  
This will allow local access through 
a Terminal Emulation program such as HyperTerminal™ or Procomm.™ 
 
RJ45 Ethernet Connector 
 
The management card has an RJ-45 connector to support a TCP/IP protocol over a 10/100 
BaseT Ethernet Local Area Network (LAN).   
 
Major, Minor and Relay 1 Output Connections 
 
There are three output relays available that provide outputs via Form “C” contacts.  The output 
relays are named Minor, Major and Out Relay 1.  Various system alarm conditions can be 
assigned to any of these three output relays.  Most alarm conditions are shipped programmed to 
Minor or Major Relay.  Wago connectors are located on the backplane card mounted in the left 
rear of the unit.  Refer to the board layout in Figure 3.9-1 for Output Relay connections.  The 
Wago connectors accept wires 26 AWG to 20 AWG (0.129mm
2
 to 0.518 mm
2
).  To connect the 
relay output, remove ¼ in (6mm) of insulation from the end of the wire.  Push down the white tab 
on the Wago connector, insert the stripped wire and release the tab to make the connection.  
The relay contacts should only be used to switch resistive loads of 0.5 A or less at 60 V or less.