Nurse Call - GE PANDA Service Manual

Chapter 1: Functional Description
RS-232 Serial Data

1.4.3 Nurse Call

1.4.3.1 Contact Ratings
• Maximum resistive load: 4 VA
• Maximum DC switching voltage: 100 VDC
• Maximum switching current: 0.25 A
• Maximum carrying current: 0.50 A
1.4.3.2 Connector
The Nurse Call contacts and the serial data output share the same female, nine pin, d-type connector.
Pin 6:
Pin 1:
Pin 9:
1.4.3.3 Nurse Call Signals
Incubator Status
Normal
Alarm
Pwr switch off or pwr fails
Nurse Call cable disconnected
1-28
Closed contact under normal conditions, that is, power on, no alarm (recommended
configuration).
Common contact.
Open contact under normal conditions, power on, no alarm. These contacts are not
powered. They only provide closure.
Nurse Call Signal
Pins 1 and 6
Closed
Open
Open
Open
Pins 1 and 9
Open
Closed
Closed
Open
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