# Step 1: Coordinate with the POIS operator
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Talk to the POIS operator, and agree on the values for this data:
+ The label for each input. This value must be identical, and it is case sensitive.
+ The acquisition ID for the Elemental Live node. The POIS must have a different acquisition ID for each Elemental Live node that it works with.
+ The zone ID for the specific event. 

  The combination of acquisition ID and zone ID must be unique in the Elemental Live event.
+ The URL for the signal conditioner endpoint on the POIS. This endpoint handles the input switching communications with Elemental Live.
+ The URL for the alternate signal conditioner endpoint on the POIS, if this exists.
+ The preroll that is the number of seconds between when Elemental Live receives the request from the POIS and when Elemental Live inserts any SCTE-35 messages in the content. This preroll isn't required if the messages that the POIS sends include a start time for the input switch,

Make a note of all of this data. You will need it to set up on Elemental Live.