Waters Xevo TQ-S Operator's, Overview And Maintenance Manual page 247

17. Connect the roughing pumps' power cords to the main power source.
18. Connect the relay cable from the top roughing pump connector, on the
mass spectrometer's rear panel, to the d.c. connector on roughing pump
number 1, and connect the looped cable to the d.c. connector on roughing
pump number 2.
Roughing pump electrical connections:
Top roughing
pump connector
Connecting the Oerlikon Leybold oil-filled roughing pumps
LA N
External Connections 1
10 9 8 7 6 5 4 3 2 1
Service Bus
OUT - IN IN
EPC Com Port
External Connections 2
10 9 8 7 6 5 4 3 2 1
Video Output
OUT - OUT OUT OUT
10 1
External Connections 1
10 1
External Connections 2
Auxiliary
10MB
Activity
/100MB
Roughing pump
number 2
February 28, 2014, 715002212 Rev. C
Roughing pump
d.c. connectors
Roughing pump
number 1
247