User guide

94 Technical Specifications ELH100-12/24TX
MDI/MDI-X Crossover Cable Wiring
Figure A-1 shows the wiring scheme for implementing a crossover cable
if needed for connection to the hub’s 10Base-T or 100Base-TX ports.
Such a cable may be required when connecting the hub to another hub or
aswitchdevice.
Figure A-1. External Crossover Cable Wiring
Power Cord Set Requirements
The wide-range input feature of the ELH100-12/24TX Ethernet hub
permits it to operate from any line voltage between 100 and 240 VAC.
The power cord set (appliance coupler, flexible cord, and wall plug) you
received with the hub meets the requirements for use in the country where
you purchased the hub.
Power cord sets for use in other countries must meet the requirements of
the country where you use the hub. For more information on power cord
set requirements, contact your Cabletron System Support
Representative.
General Requirements
The requirements listed below are applicable to all countries:
• The length of the power cord set must be at least 5.00 feet (1.5 m)
and a maximum of 6.56 feet (2.0 m).
• All power cord sets must be approved by an acceptable accredited
agency responsible for evaluation in the country where the power
cord set will be used.
• The power cord set must have a minimum current capacity of 10A
and a nominal voltage rating of 125 or 250 VAC, as required by each
country’s power system.
• The appliance coupler must meet the mechanical configuration of an
EN 60 320/IEC 320 Standard Sheet C13 connector for mating with
appliance inlet on the hub.