Hardware description
A.2 Internal interfaces
A.2.2
SCSI activity connector
Type JST B2B-PH-SM3-TB
Pin
1
2
A.2.3
Reset
Type JST B2B-PH-SM3-TB
NOTICE
Observe safety information
Only use this interface for maintenance purposes. You should observe the warnings in
"Open the device (Page 85)".
Pin
1
2
A.2.4
Power button
Type JST B2B-PH-SM3-TB
NOTICE
Observe safety information
Only use this interface for maintenance purposes. You should observe the warnings in
"Open the device (Page 85)".
Pin
1
2
166
Name
Meaning
NC
-
SCSI HD_N
0-V level means that the SCSI interface is active
Name
Meaning
GND
Ground
Reset
Input, 0 V level means reset
Name
Meaning
EXT_PWRBTN
Input, 0 V level means Power button pressed
GND
Ground
Operating Instructions, 11/2018, A5E45589180-AA
SIMATIC IPC647E