Accton Technology ES3002-TF manual Setting the Communication Mode Full/Half Duplex

Fast SwitcHub-2se User’s Guide

collisions encountered by the corresponding port. When collisions reach a level marked on the front panel display, the corresponding LED lights up. For example, if packet collision reaches 1%, the LED labeled 1% will light up. However, if collisions go beyond 30%, the LED labeled 30+% and all the other LEDs before it (i.e., 1, 5, 10 and 20) also light up in rapid succession.

Note: If either port displays a high collision rate, check to see if any of the connected devices are malfunctioning or if a loop has been formed in your network connections. Otherwise, you may need to reconfigure your network to balance the traffic load.

Setting the Communication Mode (Full/Half Duplex)

Color:	Green
Active LEDs: Full/Half (Display Mode LED)
	Full (Port Status LED)
Function:	The communication mode can be set to either full-duplex or half-
	duplex operation. Use the Configure button to light the Full/Half
	Display Mode LED, indicating that the transmission mode may now

be set for the ports. Next set the Port Status LED for the correspond- ing port in the LED column labeled Full as indicated below.

Full/Half (Display Mode LED)

STEADY LIGHT

NO LIGHT

Condition

ON

OFF

Indication

Transmission mode selection enabled.

Transmission mode selection disabled.

Full (Port Status LED)

STEADY LIGHT

NO LIGHT

Condition

ON

OFF

Indication

Port is set for full-duplex operation.

Port is set for half-duplex operation.

Notes: 1. Full-duplex mode is supported for both ports.

2.Full-duplex operation only applies to point-to-point access (e.g., when attaching the SwitcHub to a workstation, server, or another switch). Repeater hubs use a common collision domain for all communications, and therefore cannot support full-duplex mode. When connecting the SwitcHub to a repeater hub, use a standard cascaded connection set for half-duplex communications.

3-6 Hardware Reference