Cabletron Systems Connecting the 3H08-04 FE Switch Module, 3H08-04 Front Panel Connections

Connecting to a Network

2.2.2 Connecting the 3H08-04 FE Switch Module

You can connect each of the four pairs of ST fiber ports on the 3H08-04 to a 100BASE-FX port on a device such as a hub, using fiber optic cable. Each fiber segment has a pair of female ST connectors clearly marked as “RX” and “TX.”

Attach the transmit (TX) connector on the 3H08-04 to the receive (RX) connector on the attached device. Similarly, you must then connect the receive (RX) connector on the 3H08-04 to the transmit (TX) connector on the attached device (see Figure 2-2). For more information on cable specifications, see Appendix B.

							QUAD FAST ETHERNET / 802.3 100BASE-FX
	SEGMENT 1		SEGMENT 2		SEGMENT 3		SEGMENT 4
		TX		TX		TX		TX	PROC
		RX		RX		RX		RX
		LK		LK		LK		LK
OFFLINE	TX	RX	TX	RX	TX	RX	TX	RX	PWR

To RX on device

To TX on device

Figure 2-2 3H08-04 Front Panel Connections

FE Switch Module User Guide Page 2-3