GE Brivo OEC 865 - Page 81

System Overview
2-27
UDB_OVERCUR_N
Over current error
Digital
0-+15v
J1-C9
0V= effective
DOWN_PROTECT_TO_MCB_N
Reach limit
Digital
0-+15v
J1-C10
0V= effective
UP_TO_MCB_N
UP key
Digital
0-+15v
J1-C8
0V= effective
DOWN_TO_MCB_N
DOWN key
Digital
0-+15v
J1-C20
0V= effective
DOWN_SECURITY_TO_MCB_N
DOWN_SECURITY key
Digital
0-+15v
J1-C21
0V= effective
Workstation Communication
Signals from MCB to WK (Workstation) are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
WK_Y
One of two differential signals from MCB to WK
Differential
signal
+/-(1.5-
5V)
J2-B2
-
WK_Z
The other one of two differential signals from
MCB to WK
J2-A2
-
Signals from WK to MCB are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
WK_A
One of two differential signals from WK to MCB
Differential
signal
+/-(1.5-
5V)
J2-A3
-
WK_B
The other one of two differential signals from WK
to MCB
J2-B3
-
Display Board
Signals from MCB to Control Panel are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
SPI_CLK
Clock of SPI bus
Digital
0/+15V
J1-B23
-
SPI_MOSI
Data from MCB to Control Panel
Digital
0/+15V
J1-C24
-
SPI_/CS1
Chip select 1 for MAX9654
Digital
0/+15V
J1-A25
+15V= effective
SPI_/CS2
Chip select 2 for MAX7301
Digital
0/+15V
J1-A28
+15V= effective
LED_
YELLOW_N
Yellow led lights signal
Digital
0/+15V
J1-C23
0V= effective
Signals from Control panel to MCB are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
SPI_MISO
Data from Control Panel to MCB
Digital
0/+15V
J1-A23
-
DB_INT
Interrupt of Control panel
Digital
0/+15V
J1-B25
+15V= effective
User Interface Control
Key Switch
Signals from key switch to MCB are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
KEYSW_ON
The termination which
indicates lift column and x-ray
are both enable
Passive
Open/Close
J1-C26
KEYSW_ON & KEYSW_COM is
connected means both lift column
and exposure enable function
have been selected.
KEYSW_OFF
The termination which
indicates lift column is enable
and x-ray is disable
Passive
Open/Close
J1-B16
KEYSW_OFF & KEYSW_COM is
connected means lift column
function have been selected.
KEYSW_COM
Common termination
Passive
-
J1-A24
-
Hand Switch
Signals from hand switch to MCB are listed as follows.
Name
Description
Attribution
Scale
Pin
Comment
HAND_FLU
Hand switch
termination
Passive
Open/Close
J1-B28
HAND_FLU & HAND_COM is
connected means HAND_FLU