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Module and Board Reference Data
AUX 3B+ (J2-3) An Auxiliary I/O board is required for use of this terminal.
•
For Aux I/O #1 or #2: Positive vital input terminal of an isolated two-wire auxiliary
input, typically used for downgrading the signaling system under various conditions,
including switch controllers, slide fences, high water detectors, dragging equipment
detectors, etc. Referenced to AUX 3B- (J2-4).
AUX 3B- (J2-4) An Auxiliary I/O board is required for use of this terminal.
•
For Aux I/O #1 or #2: Negative vital input terminal of an isolated two-wire auxiliary
input, typically used for downgrading the signaling system under various conditions,
including switch controllers, slide fences, high water detectors, dragging equipment
detectors, etc.
AUX 4B+ (J2-5) An Auxiliary I/O board is required for use of this terminal.
•
For Aux I/O #1 or #2: Positive vital input terminal of an isolated two-wire auxiliary
input, typically used for downgrading the signaling system under various conditions,
including switch controllers, slide fences, high water detectors, dragging equipment
detectors, etc. Referenced to AUX 4B- (J2-12).
AUX 4B- (J2-6) An Auxiliary I/O board is required for use of this terminal.
•
For Aux I/O #1 or #2: Negative vital input terminal of an isolated two-wire auxiliary
input, typically used for downgrading the signaling system under various conditions,
including switch controllers, slide fences, high water detectors, dragging equipment
detectors, etc.
+VPC B (F2-7 t o J2-12) Vital power controller positive voltage terminal (isolated from
battery).
•
Used as the common connection for all vital inputs and outputs for CPU B.
J4 CPU A serial port
•
Same as serial port on front edge of CPU A.
J5 CPU B serial port
•
Same as serial port on front edge of CPU B.
J6, J7 Reserved for future use.
P2160B, Vol.1, Rev. Jan/07
A–15
Alstom Signaling Inc.