Xycom XVME 590 Manual page 76

XVME-500/590 Manual
February, 1988
Connector
Signal and
Mnemonic Pin Number
SYSFAIL*
1C:lO
SYSRESET* lC:12
lA:14
WRITE*
+5V STDBY lB:31
+5v lA:32
1 B:32
C:32
1
2B:1,13,32
+12v lC:31
-12v lA:31
Table B-l. VMEbus Signal Identification (cont'd)
Signal Name and Description
SYSTEM FAIL: Open-collector driven signal that
indicates that a failure has occurred in the system. It
may be generated by any module on the VMEbus.
SYSTEM RESET: Open-collector driven signal which,
when low, will cause the system to be reset.
WRITE: Three-state driven signal that specifies the
data transfer cycle in progress to be either read or
written. A high level indicates a read operation, a low
level indicates a write operation.
+5 VDC STANDBY: This line supplies +5 VDC to devices
requiring battery backup.
+5 VDC POWER: Used by system logic circuits.
+I2 VDC POWER: Used by system logic circuits.
. -12 VDC POWER: Used by system logic circuits.
B-5