Perle Systems 5500161-40 manual Wiring up a DHV unit

Powering Up the IOLAN

Wiring up a DHV unit

	Terminal #	Description	Usage
	1	Normally Open	Normally Open is a fail-safe relay connection. Use this with the
			Common terminal to act as switch contacts that remain open when
			the unit is powered off or in a failure state.
	2	Common	Common is a fail-safe relay connection. Use this terminal in
			conjunction with the Normally Open or Normally Closed terminals.
	3	Normally	Normally Closed is a fail-safe relay connection. Use this with the
		Closed	Common terminal to act as switch contacts that remain closed
			when the unit is powered off or in a failure state.
	4	Chassis Ground	Chassis Ground must be connected to "Equipment Ground" for DC
			installations or "Safety Ground" for AC installations.
	5	+ / L (source 1)	+ / L (Source 1) is connected to the positive (+) input for DC
			sources or to the Live input for AC sources. Use with partner
			terminal -/N(Source 1).
	6	- / N(source 1)	- / N (Source 1) is connected to the negative (-) input for DC
			sources or to the Neutral input for AC sources. Use with partner
			terminal +/L(Source 1).
	7	+ / L (source 2)	+ / L (Source 2) is connected to the positive (+) input for DC
			sources or to the Live input for AC sources. Use with partner
			terminal -/N(Source 2).
	8	- / N(source 2)	- / N (Source 2) is connected to the negative (-) input for DC
			sources or to the Neutral input for AC sources. Use with partner
			terminal +/L(Source 2).
	E	Earth Ground	Earth Ground is a connection to the chassis that can be used for
			earth bonding.
NOTES:

48 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0