Black Box Modular Switches Status LEDs, For all LE14XXA-Seriesmodels, for half duplex, 100/10

ack Box Modular Switches Installation and User Guide (8/99)

des are added or removed or moved from one segment to another, the 4-Port Switch

tomatically keeps up with node locations.

An address-aging algorithm causes least-used addresses to fall out in favor of new

equently -used addresses. To reset the address buffer, cycle power down-and-up.

2	Status LEDs
	For all LE14XXA-Series models :
	PWR	: Power LED, ON when AC power is applied to the unit.
	LK	: Steady ON, Link status for 10 Mbps and 100Mbps operation.
	ACT	: ON with port activity for 10 Mbps and 100Mbps operation.
	F/H	: Full / Half duplex LED, ON when the port is running full duplex, OFF
		for half duplex.
	100/10	: Speed LED, ON when the speed is 100Mbps , OFF when the speed is
		10 Mbps
3	Up-link push-button, for RJ-45 4-port only

Figure 4.3 : Up-link push-

utton on RJ-45 4-port

The unit has a manual Up-link

x

1	2	3	4 ACT
LK
100/10			FDX/HDX

ush-button, located on the front panel next to 10/100Mb RJ-45 4-port # 1 which it controls. It

ables the port’s cable to either connect to a user station node (push in) or to be cascaded (push

t)to a 10/100Mb repeater or switching hub in the network. Verify proper Up -link push- tton position by noting Port 1’s LK (link) LED status, which is illuminated when a proper nk is made.

.4 Auto-negotiation, for Fast Ethernet copper ports

The LE14XXA-Series Fast Ethernet copper ports can be set for either fixed 100Mb

eed or for 10/100 F/H N-way auto-negotiation per the IEEE802.3u standard. The selection is

ade via an internal jumper (see Section 3.4 for jumper-setting instructions). The factory default

tting is for auto-negotiation. At 100Mb-fixed speed, the user may select half- or full-duplex

ode by internal jumpers for each RJ-45 port separately.

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