Troubleshooting Guide 4 Troubleshooting
81
Flexible Nurse Call Relay
Troubleshooting the ECG OUT
Symptoms Cause of Failure Failure Isolation and Remedy
INOP message CHECK
NURSE CALL RELAY is
issued
Nurse Call Relay board defective Replace Nurse Call Relay I/O
board.
Monitor alarmed, Nurse
Call did not activate
Incorrect configuration (Relay
latency, Relay trigger)
Check monitor configuration (see
configuration guide)
Connection of cable to monitor or
nurse call system not correct
Check cable connections
Nurse Call Relay board is in the
wrong slot.
Verify correct placement of the
I/O boards
The Nurse Call Relay bosrd is
defective
Replace Nurse Call Relay board
Symptoms Cause of Failure Failure Isolation and Remedy
No marker pulse is
displayed on the Monitor
or no ECG- OUT signal to
the Defib
Disconnect the MMS and Defib
cable.
Switch the Monitor off then on again.
Observe the red LED in the ECG
OUT section. (Note that the LED can
only be observed if the housing
bottom is removed).
Cabling not connected
If the red LED does not switch on for
about 1 second at power on:
Check cabling
ECG OUT board defective Replace ECG OUT board
ECG OUT Board defective
If the red LED switches on and
remains on for more than 20 seconds:
Replace ECG OUT Board
Main Board defective Replace Main Board
ECG OUT board defective
Connect Known good Defib, Defib
cable MMS and MMS cable. Check
Marker pulse and ECG OUT signal at
defib again. If there is still no signal:
Replace ECG OUT board
Main Board defective Replace main board
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