Installation guide

V3.8
OnTime Industrial Ethernet
U/R/T200 series Installation Guide
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3.1.5 Power connection
Connect your primary voltage (e.g. +24VDC) to the VinA pin and ground to one of the –COM
pins on the power input on the U/R/T200 switch by using the enclosed power connector.
Figure 5, Power input
3.1.6 Copper drop link connection
Both straight and crossed RJ45 cables can be used for copper connection, see Operator
Manual for details related to the Auto-MDI-X operations.
3.1.7 Fiber drop link connection
Auto-MDI-X is not supported on the fiber ports. Thus, the user must make sure that the fiber
drop link used is crossed. This is easily verified by checking if the fiber port LED is on or not,
when the fiber drop link is connected between two switches or the switch and a fiber enabled
end node. Manual swaping of the TX/RX drop link on one of the fiber devices is required in
case the LED is off on both devices. This can be done either directly on the switch fiber port
or on a fiber patch panel if this is available (preferably).
3.2 Power Supply Connector
3.2.1 Redundant power inputs
The switch is designed to operate permanently over a very wide range of power input (19 V
DC to 60 VDC). Two redundant inputs are provided to provide enhanced redundancy if either
supply fails.
The power supply draws power from the input that has the highest potential difference when
compared to the alternate supply.
This enables use of e.g. a 48V source as primary supply with a 24VDC battery as back up.
Power supply inputs have reverse polarity protection.
The switch is delivered with a power connector (Wieland 25.621.3553.0) that is suitable for
wires between AWG 20 and AWG 22 (0,34-0,5 mm
2
).