Datex-Ohmeda Engstrom Carestation, Technical Reference Manual

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Engström Carestation
2-24 08/07 1505-1018-000
2.3.8 Motherboard
(backplane)
The Engström Carestation can use one of two Motherboards:
• Original Motherboard - 1505-5504 (Port 2 - 15 pin) oo o orrrr
• Current Motherboard - M1053184 (Port 2 - 9 pin)
N N
N Nooo otttteee e:::: If replacement of the original Motherboard with a current Motherboard is
required, it is necessary to replace the original VMB (1505-5501-000) with the current
VMB (M1052980).
The EC motherboard provides backplane connectivity for the VCB, VMB and PMB
assemblies in the EC chassis.
Analog circuits on the board provide current limiting for external peripheral
connections to ensure that the EC’s primary ventilation and monitoring functions are
not compromised by excessive power draw. In addition, 10VA energy limit circuitry is
provided for power connections within 20 cm of O
2
exhaust outlets, in order to mitigate
the risk of an oxygen enriched fire.
The board features 6 external connectors that exit through a rear sheet metal interface.
Refer to section 2.3.3.
• Patient Side Module (PSM) support connector, Neonatal Flow Sensor,
(future expansion)
• Serial (future expansion) connector
• Service Application, Serial (future expansion) connector
• External Serial I/O connector, Nurse call
• Main DU connector (communication channel between DU and EC)
• Monitoring Module, Mod Bus connector
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