ack Box Modular Switches | Installation and User Guide (8/99) |
Figure 3.7 10Mbps Fiber ports internal jumper settings.
ote: Be certain that the main power is disconnected before opening the unit or changing any ternal jumper settings
herefore, the default setting of half-duplex ( fiber ports) is generally desirable because it is
idely used and allows for the connection of various devices without re-configuration.(where the nnected device is half duplex and does not support full-duplex i.e., Hub and media-converters.) ote: For 10Mbps fiber ports, the user can set the jumpers either at full-duplex or half duplex on l the four ports. There is no individual port duplex options for 10 Mb port.
8 Powering the LE14XXA-Series Switch
The Black-Box LE14XXA-Series Switches incorporate an internal universal power pply, and has a recessed male IEC connector for the AC power cord at the left -rear. A manual ower ON-OFF switch is adjacent . A six-foot 115 VAC 60 Hz standard power cord is supplied ith each unit shipped within the United States and Canada.
110-220ON
VAC
47-63Hz
1.0-0.5AO F F
Figure 3.5: LE14XXA-Series
AC power connector
The auto-ranging power supply supports installation environments where the AC ltage is from 90 to 260 volts with a power input frequency of between 47 and 63 Hz. The 8- rt units will consume just under 20 watts of power typically, and the 16-port units will nsume about 35 watts typically.
When connecting the Ethernet cabling, there is no need to power down the unit. dividual segments can be connected or disconnected without concern for AC power-related oblems or damage to the unit.
Power supply options are available to suit the LE14XXA-Series Switches to special gh-availability communications and/or heavy industrial-grade applications, including:
*-48VDC with single DC input,
*-48VDC with dual-source DC input,
*-48VDC with dual redundant internal power supply units and dual-source DC input,
*AC with dual redundant internal power supply units and dual-source AC input
