Agilent Technologies Navigator TV 1001 Notice De Mode D'emploi page 255

P3 - Vent
Figure 11
This is a dedicated 24 Vdc connector to control the optional vent valve.
P4 – External Fan
Figure 12
This is a dedicated 24 Vdc connector to supply the optional external fan.
TV 1001 Navigator User Manual / 87-900-945-01(L)
Technical Information
Interconnections
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