The Skorpion series of low-cost Ethernet infrastructure products from Contemporary Controls has been expanded with the EISK8M managed switch. One 8-port 10/100 Mbps copper model and three 8-port copper/fibre models are now available.
Intended for cost-effective SNMP managed applications, the units are compact and rated over the industrial temperature range. Fibre-optic distances up to 15 km are possible with the single-mode option. Besides having the standard
plug-and-play features found in unmanaged switches, these devices can be configured via their web pages, and can be powered either from a low-voltage AC or DC source.
The EISK8M series provides standard features such as auto-negotiation and auto-MDIX; however, these features as well as full-duplex mode can be individually set for each copper port. Three models offer two fibre ports. Customers can choose single-mode transceivers with SC connectors (providing 15 km cable distance) or multimode transceivers with either SC or ST connectors. The copper ports can auto-negotiate 10 Mbps, 100 Mbps, half- or full-duplex.
In addition to one power LED and one CPU status LED, each port has LEDs showing link/activity/data rate by colour: green for 100 Mbps and yellow for 10 Mbps; flashing indicates port activity. The EISK8M Series is designed for DIN-rail mounting. There are several low-voltage powering options from 24 V a.c. or from 10 to 36 V d.c. Provisions exist for redundant power connections.
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