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INM MTL SUM5 Rev 7
DRAFT - 09 June 2021 DRAFT - 09 June 2021
2.2.10 Terminals For Use With External Pushbutton Inputs
Five additional optically coupled inputs , PB1 to PB5, are available on the rear of the
annunciator for use with external pushbuttons, group inhibit or a sleep mode switch as
required.
The common return for the remote inputs is PCom
Please note: VAUX +24V can be used for external pushbuttons, or any nominal 24V
terminal on the rear panel.
WARNING !
Hazardous voltages may be present when the front panel is removed.
Take care not to youch exposed parts on the annunciator beyond those
specied in the instructions below
P/B Inputs