inS_cnge2fe16MS_reV–
01/11/12 Page 19
INSTALLATION AND OPERATION MANUAL
CNGE2FE16MS
TECh SUPPORT: 1.888.678.9427
Wiring the P-Fail Alarm Contacts
The “P-Fail” alarm relay is provided to signal critical error conditions that may occur on the switch.
The contacts are energized upon powering up of the switch and remain energized until a critical
error occurs including power failure, Ethernet port disconnection and MAC violation. Take the
wiring illustration below as an example that illustrates the proper relay connection forming a
normally closed circuit, and the connection is to be broken when an error occurs.
Figure 14 – Terminal Block Plugs for Fault Alarm Contacts
Figure 15 – Fault Alarm Wiring Example
24Vdc, 1A
Resistance