GE Brivo OEC 715, Service Manual

Page: 67 / 551

System Overview
2-13
Power on/off button interface
The voltages applied to the power on/off button are listed as follows.
Name Description Pin Attribution Scale Comment
SYS_ONOFF_CTRL_1 The button switch
on/off terminal
PJ5-1 Power 0/+12VDC
SYS_ONOFF_CTRL_2 PJ5-2 Power 0/+12VDC
BUTT12V The button
indicator
PJ5-3 Power 0/+12VDC
BUTTON_LED_GND PJ5-4 power 0
12V interface
The +12VDC power from computer are listed as follows.
Name Description Pin Attribution Scale Comment
+12V_CMPTR +12VDC Power from computer PJ4-1 power 0/+12VDC
GND_CMPTR GND Reference point PJ4-2 power 0
Interlock interface
The interlock signals for cable &board are listed as follows.
Name Description Pin Attribution Scale Comment
INTERLOCK_CABLE Interlock cable signal PJ3-3 signal 0/+12VDC
INTERLOCK_COM GND Reference point PJ3-2 signal 0/+12VDC
INTERLOCK_BOARD Interlock board signal PJ3-1 signal 0/+12VDC
PC power on/off switch interface
The switch on/off signal for PC are listed as follows.
Name Description Pin Attribution Scale Comment
CMPTR_CTRL_1
PC ON/OFF Control
PJ10-1 signal
CMPTR_CTRL_2 PJ10-2 signal
JTAG interface
Name Description Pin Attribution Scale Comment
TCLK JTAG input pin PJ9-1 signal 0/+3.3V
GND GND PJ9-2,10 power 0/+3.3V
TDO JTAG input pin PJ9-3 signal 0/+3.3V
VCC_+3.3V +3.3VDC power PJ9-4 power 0/+3.3V
TMS JTAG input pin PJ9-5 signal 0/+3.3V
TDI JTAG input pin PJ9-9 signal 0/+3.3V
System Interface Board interface
The signals to SIB are listed as follows.
Name Description Pin Attribution Scale Comment
SYS_PWR_REQ system switch on/off signal PJ8-1 digital 0/+12V (>6V=High)
GND GND PJ8-2 GND 0V
MAINS_LOST_ERR status of Mainframe Power PJ8-3 digital 0/+12V (>6V=High)
SEC_OVR_VLTGE_ERR
transformer secondary over
voltage signal
PJ8-4 digital 0/+12V (>6V=High)
SEC_UDR_VLTGE_ERR transformer secondary
under voltage signal
PJ8-5 digital 0/+12V (>6V=High)
12V_ERR
+12V voltage from
computer fault signal
PJ8-6 digital 0/+12V (>6V=High)
RDY_ERR
WKS boot up ready fault
signal
PJ8-7 digital 0/+12V (>6V=High)