TWINFLEX
®
SRP Control Panel Engineering and Commissioning Manual
19
Programmable Inputs 1-5: MI# +, MI# -, SCRN
Activate On Closing Contact
Activate On Opening Contact
Note:
When a monitored input is configured as a normally closed extinguishant flow input, connecting a
normally open switch will cause the panel to go into a release state.
Likewise when a monitored input is configured as a normally open extinguishant flow input, connecting
a normally closed switch will cause the panel to go into a release state.
Maximum Voltage at contacts, 3.3 Volts, Maximum current 0.72mA.
Minimum Voltage at contacts, 0 Volts.
Monitored Inputs can be configured so they activate on an opening or a closing contact
using a 680Ω or
470Ω ‘firing’ resistor. They also monitor for open and short circuit faults using a 3k3Ω EOL resistor.
Programmable inputs can be configured to initiate the following system-level events:
CONTROL EVENT
SILENCE ALARMS
DISABLEMENT
ALL SOUNDERS &
RESET SYSTEM
RELEASING OUTPUTS
SOUND ALARMS
RELAYS
SILENCE BUZZER
RELEASE EVENT
MANUAL RELEASE
REMOTE EVENT
REMOTE FIRE
HOLD
GENERAL FAULT
EXTINGUISHANT FLOW
MANUAL MODE
LOW PRESSURE
EXTRACT
Caution
– the use of an input to disable the buzzer does not meet EN54-2
Note:
Access to any input device connected to an SRP monitored input which has been configured to
activate one of the following functions needs to be protected by a locked enclosure or be
operated by a key switch to prevent unauthorised operation.
Silence Alarms
Sound Alarms
Reset System
Silence Buzzer
Manual Mode
Disablements
ON BOARD PCB
FIELD CONNECT IONS
MI1 -
MI1 +
SCREEN
N/O CONTACT
3K3
Ohms
EOL
680
Ohms
SCRN
ON BOARD PCB
FIELD CONNECTIONS
MI1 -
MI1 +
SCREEN
SCRN
N/C CONTACT
3K3
Ohms
EOL
680
Ohms