GE Brivo OEC 715, Service Manual

Page: 83 / 551

System Overview
2-29
switch1 connected means
EMERGENCY_SWT has been
pressed
REF_
EMERGENCY_SWT1
The other
termination of
Emergency
switch1
Passive - J1-B11 -
EMERGENCY_SWT2 One termination of
Emergency
switch2
Passive Open/Close J1-C25 EMERGENCY_SWT2 &
REF_EMERGENCY_SWT2 is not
connected means
EMERGENCY_SWT2 has been
pressed
REF_
EMERGENCY_SWT2
The other
termination of
Emergency
switch2
Passive - J1-A26 -
Removable Filter
Signals from removable filter to MCB are listed as follows.
Name Description Attribution Scale Pin Comment
PROTECT_A Removable filter A
sensor signal
Digital 0V/+15V J1-B31 +15V= Filter removed
PROTECT_B Removable filter B
sensor signal
Digital 0V/+15V J1-B30 +15V= Filter removed
Indicator
Signals from MCB to indicator are listed as follows.
Name Description Attribution Scale Pin Comment
XRAY_INDICATOR_A Anode of indicator Passive - J1-B8 The indicator will be lighted when a
certain current about 12mA flows
from XRAY_INDICATOR_A through
indicator to XRAY_INDICATOR_B.
XRAY_INDICATOR_B Cathode of indicator Passive - J1-A8
Program Port
Program port signals are listed as follows.
Name Description Attribution Scale Pin Comment
SERIAL_TXD Transmit signal of serial port Digital -7V-+7V J1-A31 -
SERIAL_RXD Receive signal of serial port Digital -7V-+7V J1-C22 -
Interlock Loop
Interlock loop signals are listed as follows.
Name Description Attribution Scale Pin Comment
INTERLOCK_LOOP_A One termination of
interlock loop
Passive - J2-B16 INTERLOCK_LOOP_A &
INTERLOCK_LOPP_B is connected in