PCE-5120 User Manual 12
1.8.3 Watchdog timer output (JWDT1)
The PCE-5120 contains a watchdog timer that will reset the CPU in the
event the CPU stops processing. This feature means the PCE-5120 will
recover from a software failure or an EMI problem. The JWDT1 jumper
settings control the outcome of what the computer will do in the event the
watchdog timer is tripped.
1.8.4 COM2 RS 232/422/485 mode selector (JSETCOM2)
Users can use JSETCOM2 to select among RS 232/422/485 modes for
COM2. The default setting is RS 232.
Table 1.4: Watchdog timer output (JWDT1)
Function Jumper Setting
Reserved
* Reset
*default setting
Table 1.5: COM2 RS 232/422/485 mode selector (JSETCOM2)
COM 2 Port Function Jumper Configuration
RS-232 *
RS-422
RS-485
*default setting
1
1-2 closed
1
2-3 closed
97
8
531
6421012
1115 13
141618
17
97
8
531
6421012
1115 13
141618
17
97
8
531
6421012
1115 13
141618
17