Chapter 3
Theory of Operation
1062788
BiPAP Vision Service Manual © Respironics, Inc.
3-23
3.8 Nurse Call/
Remote Alarm
(s/n 106000 and
above only)
The ventilator activates a nurse call/remote alarm signal in case therapy is
interrupted (for example, system shutdowns, patient alarms, and
Loss of AC
Power
). However,
Check Vent
does not activate the nurse call/remote alarm.
The Alarm silence key silences the nurse call/remote alarm signal for 2
minutes. The Alarm reset key clears the nurse call/remote alarm signal, and
the signal automatically terminates when a patient alarm self-cancels. The
nurse call/remote alarm is intended as a backup to the main (primary) alarm
system.
The nurse call/remote alarm signal is generated on the MC board, and can be
connected to a hospital nursing station. This signal is opto-isolated and used
to switch a relay to provide open or closed contacts to the remote station
circuit. The arrangement of the two jumpers (JP1 and JP2) on the MC board
determine the output configuration that is used by a common connector on the
rear panel of the ventilator. Use the nurse call adapter (P/N 1014280) and
nurse call cable (P/N 1003742) to connect the ventilator to a normally open or
normally closed nurse call system.
Select the MC board jumper configuration as required (Table 3-1). Figure 3-10
shows the MC board jumper locations.
Table 3-1: MC Board Jumper Configurations
Remote alarm system and
output
JP1
jumper
JP2
jumper
Notes
Respironics remote alarm,
51.1K output
2, 3
2, 3
Respironics remote alarm system
P/N 34003 or equivalent
Central alarm system,
normally closed output
2, 3
1, 2
Closed contacts = no alarm. Default factory
configuration for s/n 106001 - 106368.
Central alarm system,
normally open output
1, 2
1, 2
Open contacts = no alarm. Default factory
configuration for s/n 106369 and above.
