Anesthesia Control Board Details - GE Datex-Ohmeda Aisys Carestation Reference Manual

Aisys
2.7.2 Anesthesia
Control Board
details
Valve Drivers
Status LEDs
Connectors:
Alarms
2-18
The 12.5 VDC power enters the Anesthesia Controller Board via connector J6
(see item 14 in Section 2.6). This 12.5 VDC is further regulated down to five additional
voltages used by the Anesthesia Controller Board. These include:
• 3.3VDC – VR2
• 1.8VDC – VR3
• 5.0VDC – VR1: Used for Pipeline and Cylinder Pressure Transducers
• 2.5VDC
• 5.0VDC
These voltages are self-monitored for out-of-range.
The Anesthesia Controller Board also supplies 10VA-limited power (+12.5VDC & +5.0
VDC) to External subsystems and Pipeline and Cylinder Pressure Transducers.
The Anesthesia Controller Board contains logic circuits and valve drive circuits for the
following devices that reside on subsystems:
• O Select Valve (Gas Mixer Board)
2
• N O Select Valve (Gas Mixer Board)
2
• AIR Select Valve (Gas Mixer Board)
• Alt O Select Valve (Gas Mixer Board)
2
The Anesthesia Controller Board contains 2 sets of 4 each (8 total) status LEDs. They
are located on the board at approximately the 6 and 9 o'clock positions, near
connectors J5 and J6 respectively. Each set contains the following four LEDs:
• RXD (CR19 and CR35) – yellow – Indicating Display Unit communication activity
• TXD (CR20 and CR34) – yellow – Indicating Anesthesia Controller Board
communication activity
• RESET (CR21 and CR36) – Red – Watchdog Reset
• RXD (CR22 and CR33) – yellow – Software LEDs
The Anesthesia Controller Board has five populated connectors:
• J1 – 50-pin connector to (signal) Pan Connector Board.
• J3 – 24-pin connector to (power) Pan Connector.
• J4 – 10-pin connector (JTAG). This is used by Engineering. Not Used by Service.
• J6 – 16-pin connector power in from Power Controller Board.
• J7 - 12-pin connector to (10VA power) display connector (M-Gas)
The Anesthesia Controller Board has a backup audio alarm. This is sounded in the
event of communication loss between the Anesthesia Controller Board and Display
Unit.
04/08 M1046983