Installation Manual

Corning Optical Communications

Installation Manual

CMA-793-AEN

Page

6. Optical Connection

Optical Transceiver Module

Single-Port Bidirectional SFP Transceiver

The Figure below shows a pair of single-port Bidirectional SFP transceivers. For devices optical connection, the

transceivers of two sides must be paired -- the wavelength of one side is 1271 nm, and the wavelength of another

side is 1331 nm. Otherwise, it will fail the connection. All lower-level devices under this port won’t be working in the

system.

All the optical ports of all type devices have triangle LED indicators pointing to each port, which represent the

synchronization status of the upper and lower optical modules. The indicator turns to green when optical modules are

plugged in ports and synchronized. When the connection is down, or there is no optical module in port, the indicator

remains red.

The single-port SFP modules have to be used in pairs.

Dual-Port SFP Transceiver

The optical connector unit includes an optical module and optical fiber. The Figure below shows that when using a dual-

port SFP module, the optical transmitter and optical receiver should correspond to each other. In other words, the optical

transmitter of optical module A should correspond to the optical receiver of optical module B, and the receiver of A

should correspond to the transmitter of B. The optical receiver and transmitter terminals of the optical module can be

determined by the triangular mark on the optical module. The triangular mark in the yellow box and the red and blue

lines indicate the optical fiber connections.