ADLINK PMC-8246 - Manual (Page 22)

10 Hardware Information
2.4 Control Switch
The Control Switch (SWX1) is used to enforce Normal and Bypass
states as shown below.
Figure 2-2: Control Switch (SWX1) & Pin Descriptions
PIN# Default Status Function
ON Normal State (on startup) 1 ON
OFF Bypass State (on startup)
ON Force relay array to Bypass State 2 OFF
OFF No Enforcement
ON Force relay array to Normal State 3 OFF
OFF No Enforcement
ON Force WDT disable 4 OFF
OFF No Enforcement