Cabletron Systems MT8-MIM Especificaciones descargar pdf (Pagina 168)

Connecting and Terminating

14-18 FDDI

SC Connector

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. As duplex SC Connectors are designed to only

be inserted into SC ports in one fashion, there is little chance of a mis-connection

due to improper crossover occurring.

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.

1. Remove the protective plastic covers from the ﬁber optic port on the

applicable module, and from the ends of the ferrules of the SC Connector.

2. Align the SC connector with the SC port to which it is to be connected. Hold

the SC Connector as shown in the ﬁgure below, with the raised guide keys at

the top.

Figure 14-13. SC Connector Insertion

3. Press the connector straight into the port. When the port is fully inserted, the

inner housing will latch and lock the connector into place.

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 cable ends causes problems in data

transmissions. If necessary, clean contaminated cable ends

using isopropyl alcohol and a soft, clean, lint-free cloth.

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Cabletron Systems MT8-MIM Especificaciones Pagina 168