RuggedCom RS969 manual Neutral, inputs. This terminal 3 is connected to chassis ground

The RS969 family has 2 different power supply input connectors---Mini A-coded male connector or M23 A-code male connector shown in Figure 2.2.1.1. The Mini power connector only has 4 terminals, so only one power supply source is allowed to connect to the RS969 with Mini power connector; The M23 power connector has 5 terminal pins which means 2 power supply sources are allowed to power the RS969 with M23 power connector.

The RS969 family supports dual redundant power supplies – “Power Supply 1 (PS1)” and “Power Supply 2 (PS2)”. The connections for PS1, PS2 are shown in Table1 and 2.

Refer to

Table 1 and 2 for a description of each terminal and sections 2.3.2 through 2.3.4 for wiring examples.

Terminal #	Description		Usage
			PS1 Live / + is connected to the positive (+) terminal if the
1	PS1	Live / +	power source is DC or to the (Live) terminal if the power
			source is AC.
			PS1 Neutral / - is connected to the negative (-) terminal if
2	PS1	Neutral / -	the power source is DC or to the (Neutral) terminal if the
			power source is AC.
			Chassis Ground is connected to the Safety Ground
			terminal for AC inputs or the equipment ground bus for DC
	Chassis		inputs. This terminal 3 is connected to chassis ground
3			internally in the RS969 family. There is also an additional
	Ground
			chassis ground screw and the chassis ground connects to
			both power supply surge grounds via a removable jumper
			shown in Figure 2.2.1.2 .
4			PS2 Live / + is connected to the positive (+) terminal if the
	PS2 Live / +		power source is DC or to the (Live) terminal if the power
			source is AC.
5			PS2 Neutral / - is connected to the negative (-) terminal if
	PS2 Neutral / -		the power source is DC or to the (Neutral) terminal if the
			power source is AC.

Table 1: RS969 Power terminal block connection description for M23 A-code male connector

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