Since the NAC can have flexible device locations, any physical input must be
programmed using the scheme described in the “Flexible device locations”
section on page 18.
Shunted pass through operation
When the door is shunting, and the input goes unsealed, the input will not pass
through, i.e. the ChallengerPlus will see the input as remaining sealed.
If the door shunt expires for any reason (Forced or DOTL), and the input is
unsealed, the NAC will pass through the input state to the ChallengerPlus panel.
If the input unseals when the door is not shunted, or the door is in alarm, the
input will pass through and report the unsealed state to the ChallengerPlus
panel.
If the input is unsealed when the door shunt starts, the ChallengerPlus panel will
not see a change in the input state.
A tamper on these inputs will be passed through to the ChallengerPlus panel
immediately regardless of the shunt state.
Relay mapping
Each relay presented to the ChallengerPlus is a direct map of a relay attached to
the NAC (either directly onboard, or attached to a DGP or RAS on one of its
buses).
A relay mapping must be set up in the NAC to map the relay to a relay number
in the range 1 to 16. Activating the ChallengerPlus relay number will activate the
specified relay attached to the NAC.
Each mapped relay has a type, which may be one of the following:
Disabled – the relay is not mapped to a physical relay. The relay may be
used as an input to a macro.
Direct map – the relay is directly mapped to a physical relay attached to
the NAC.
Relay mapping is programmed in CTPlus on the Input/Relay mapping tab of the
DGPs form for the NAC. See the “Programming input and relay mapping” section
on page 79 for instructions.
Since the NAC can have flexible device locations, any physical relay must be
programmed using the scheme described in the “Flexible device locations”
section on page 18.
ChallengerPlus input and relay numbering
ChallengerPlus allocates 32 inputs and 16 relays per DGP address. To allow
ChallengerPlus to utilise the maximum possible number of inputs and relays on a
NAC, up to 32 mapped inputs and up to 16 mapped relays can be configured on
the NAC.
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