Wiring The Power Inputs - Comtrol ROCKETLINX ES8108 Quick Installation Manual

Introduction
The RocketLinx ES8108 and ES8108F series of industrial Ethernet switches conform to
IEE802.3 and 802.3u standards. This series includes the following models:
• ES8108 supports eight 10/100BASE-TX ports
• ES8108F-M (Multi-Mode) supports six 10/100BASE-TX and two 100BASE-FX fiber ports
• ES8108F-S (Single-Mode) supports six 10/100BASE-TX and two 100BASE-FX fiber ports
The ES8108/ES8108F feature an IP31 rated compact metal housing for operation in harsh
environments. The series also features an alarm relay output to notify users of a port link or
power failure that can be enabled or disabled using the 9-pin DIP switch. The ES8108/8108F
can be powered using a wide input power range of 10-60VDC using the 6-pin terminal block.
See the Comtrol website for complete product specifications.

Wiring the Power Inputs

The ES8108/ES8108F provides:
• Power redundancy and reverse polarity protection (PW1/PW2). If both power inputs are
connected, the ES8108/ES8108F is powered from the highest connected voltage.
• Positive or negative power source. If using redundant power supplies, they must be in
the same mode.
• An alarm if PW1 or PW2 are no longer receiving power.
Use this procedure to wire the power:
1. Insert the positive and negative wires into the + and - contacts on the PW1 or PW2 on the
terminal block connector.
2. Tighten the wire-clamp screws to prevent the wires from being loosened.
Note: Power should be disconnected from the power supply before connecting it to the
switch. Otherwise, your screwdriver blade can inadvertently short your terminal
connections to the grounded enclosure.
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