Panasonic EBL512 Operating Instructions Manual page 61

Panasonic Electric Works Fire & Security Technology Europe AB
MEW00748 Rev: 1 Operating Instructions Fire alarm system EBL512 V2.3.x
Zone interface 2226: No ext. power supply.
or
Multi purpose I/O unit 3361, monitored zone line (input Z): break on
a wire or wrong / no end-of-line capacitor / short circuit (if not
programmed for fire alarm at short circuit).
(User programmable text; External fault)
Programmable input is used for an external fault; see fault message.
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