GE HEALTHCARE CARESCAPE Monitor B450 Technical Manual page 132

CARESCAPE Monitor B450
Ethernet subsystem
The CPU carrier board has a 5-port Ethernet switch. The interfaces provided by the Ethernet
switch share the same MAC address. The Ethernet host is in the CPU module. The Ethernet
switch port usage is as follows:
• PDM interface for the connector in the Module Rail Unit
• ePort interface for the connector for PDM in the rear panel
• Unity ID interface for the connector in the rear panel
• EMBC communication between CPU Module and EMBC subsystem
• Host port
The CPU carrier board has a separate Ethernet controller that provides Ethernet interface for
the MC and IX connectors with a unique MAC addresses.
Audio subsystem and speaker unit
The main speaker is used to provide audible alarms.
The audio signal for the speaker is generated in the CPU carrier board using an audio codec
and an audio amplifier. Audio feedback controls the operation of the speaker.
The speaker cable is connected to the E-Module board.
System supervision
• Watchdog timers control the operation of the main processor and EMBC processor
software execution.
• The CPU board has battery backed-up real-time clock to store system date and time.
• An I2C A/D converter and SPI temperature sensor measure the CPU supply voltages and
board temperature.
External Interfaces
The CPU carrier board provides the following external interfaces.
In the rear panel:
• 2 high speed USB connections for the USB input devices, for secondary display and for
exporting monitoring data to external systems.
• 1 DVI-D connector for an external digital display.
• 3 Ethernet (RJ-45) connectors:
•
•
•
• 1 ePort (DB9) connector for interfacing a remote PDM module with an ePort cable.
• 1 Remote-on connector. A remote-on cable enables an external GE device to turn on / to
standby the patient monitor. The remote-on functionality is disabled when the patient
monitor is battery powered.
In the side panel:
• 1 Synchronization connector. The synchronization connector provides analog ECG and
invasive pressure outputs and a digital marker-out signal for external user-supplied
equipment, for example a defibrillator or an intra-aortic balloon pump. This connector
does not operate with the PDM module. Refer to the CARESCAPE Modular Monitors
Supplemental Information Manual for details about the pin layout and electrical
specifications.
124
2062973-003
MC port for interfacing to CARESCAPE MC Network or S/5 Network.
IX port for interfacing to CARESCAPE IX Network.
ID port for interfacing to Unity ID Interface Device