- CABLETRON Systems, Inc, SmartSwitch User's Guide 2E42-27, 2E42-27R, 2E43-27, 2E43-27R

Connecting to the Network

2E42-27/2E42-27R/2E43-27/2E43-27R User’s Guide 3-15

e. Confirm that the crossover switch is in the correct position.

If a link is not established, contact the Cabletron Systems Global Call

Center. Refer to Section 1.6 for details.

3.4.3 Connecting a Fiber Optic Segment to the

FE-100FX and FE-100F3

The FE-100FX and FE-100F3 have SC style network ports (see

Figure 3-11). Cabletron Systems supplies ﬁber optic cable that uses SC

style connectors, which are keyed to ensure proper crossover of the

transmit and receive ﬁbers.

Fiber Optic Network Connection

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.

NOTES

An odd number of crossovers (preferably one) must be

maintained between devices so that the transmit port of one

device is connected to the receive port of the other device and

vice versa.

If the ﬁber optic cable being used has SC style connectors that

do not resemble MIC style connectors, or has SC connectors

on one end and a different type on the other, such as ST

connectors, ensure that the proper crossing over occurs.

CAUTION

The FE-100F3 uses Class 1 lasers. Do not use optical

instruments to view the laser output. The use of optical

instruments to view laser output increases eye hazard. When

viewing the output optical port, power must be removed from

the network adapter.

CAUTION

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.

Contamination of the ends causes problems in data

transmissions. If the ends become contaminated, blow the

surfaces clean with a canned duster. A ﬁber port cleaning swab

saturated with optical-grade isopropyl alcohol may also be used

to clean the ﬁber optic ends.