Cabletron Systems ESX-1320 manual Connecting a 10BASE-F Segment to the ESX-1380

Connecting to the Network

NOTE:

RX+/RX– and TX+/TX– must share a common color pair.

	TO			TO
ESX-1320			10BASE-T Device
RJ45 Port				Port
RX+	1			1		RX+
RX–	2			2		RX–
TX+	3			3		TX+
TX–	6			6		TX–
		RJ-45 to RJ-45
					1574-30

Figure 3-15 Cable Pinouts - (RJ45) Crossover Cable

3.9.2 Connecting a 10BASE-F Segment to the ESX-1380

Each fiber optic link consists of two strands of fiber optic cabling: the transmit (TX) and the receive (RX). The transmit strand from a module port connects to the receive port of a fiber optic Ethernet device at the other end of the segment. The receive strand of the applicable port on the module connects to the transmit port of the fiber optic Ethernet device.

Cabletron Systems recommends labeling fiber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable.

Do not touch the ends of the fiber optic strands, and do not let

!the ends come in contact with dust, dirt, or other contaminants.

CAUTION	Contamination of cable ends causes problems in data
	transmissions. If necessary, clean contaminated cable ends
	using alcohol and a soft, clean, lint-free cloth.

1.Remove the protective plastic covers from the fiber optic ports on the applicable port on the module, and from the ends of the connectors on each fiber strand.

ESX-1320/ESX-1380 Installation Guide 3-21