RuggedCom M2100 - Manual (Page 12)

2. Installation
RuggedCom® RuggedSwitch® 12 M2100 Installation Guide Rev 1.0
2.2. Power Supply Wiring and Grounding
Figure 2.2. M2000 Series Phillips Screw Terminal Block
The M2000 Family supports dual redundant power supplies - "Power Supply 1 (PS1)" and "Power
Supply 2 (PS2)". The connections for PS1, PS2 and the fail-safe relay are located on the terminal block
as shown in
Figure 2.2, “M2000 Series Phillips Screw Terminal Block” .
The M2000 Family chassis ground connection, shown in Figure 2.3, “Chassis Ground Connection” ,
uses a #6-32 screw. It is recommended to terminate the ground connection in a #6 ring lug, and to use
a torque setting not exceeding 1.7 Nm (15 in.lbs).
Figure 2.3. Chassis Ground Connection
The M2000 Family is equipped with a Phillips Screw Terminal Block. The Phillips Screw Terminal Block
has Phillips screws with a compression plate allowing either bare wire connections or crimped terminal
lugs. RuggedCom recommend the use of #6 size ring lugs to ensure secure, reliable connections
under severe shock or vibration. The terminal block has a safety cover which must be removed via
two Phillips screws before connecting any wires. The safety cover must be re-attached after wiring to
ensure personnel safety. Refer to Table 3 below for a description of each terminal as well as sections
5.2.1 through 5.2.3 for wiring examples.
Terminal # Description Usage
1 PS1 Live / +
PS1 Live / + is connected to the positive (+) terminal if the power source is
DC or to the (Live) terminal if the power source is AC.
2 PS1 Surge Ground
PS1 Surge Ground is connected to the Chassis Ground via a jumper on
the terminal block. Surge Ground is used as the ground conductor for all
surge and transient suppression circuitry. NOTE: Surge Ground must be
disconnected from Chassis Ground during HIPOT (dielectric strength)
testing.