Erbium-Doped Fiber Amplifiers
Chapter 4: Setup
Rev A, October 27, 2021
Page 5
Setup
CAUTION
Prior to using the EDFA systems, it is highly recommended to clean the input and output bulkheads
as well as the connector facets to be connected to the bulkheads. Failure to clean the connectors
can result in damage to the internal connectors in the EDFA as well as the connectors on fiber
patch cables connected to the amplifier.
Please follow one of the two recommended methods to connect the output of the amplifier to the
optical setup. Failure to use one of these methods can significantly increase the risk of damaging
the output connector of the amplifier.
When cleaning the connectors, ensure that the EDFA is powered off by turning off the push-button
switch. Never inspect optical connectors unless all light sources in your setup have been switched
off. Please refer to Section 9.2 for further instructions regarding connector cleaning.
4.1.
Setting the AC Line Voltage
The fiber amplifier has been shipped configured for 100 to 240 VAC operation. There is no end user adjustment of
the line voltage for 110 or 220 VAC. The user needs to select the correct AC cord for their location.
4.2.
Changing the Fuse
To change the power fuse, follow the following steps.
1. Remove the AC power cord if it is connected to the unit.
2. Locate the fuse tray directly adjacent to the AC power cord connection on the rear panel of the unit.
3. Carefully use a flat blade screwdriver to open the fuse tray.
4. Remove the existing fuses and install two fuses with the appropriate specifications. The replacement fuses
must be 5 mm x 20 mm, 2 A, 250 VAC, slow-blow type.
5. Push the fuse tray back into place making sure that it snaps and sits correctly.
6. Connect the appropriate power cord into the AC receptacle and plug the unit in.
4.3.
Initial Setup
1. Set the unit on a dry, level working surface.
2. Plug the female end of the provided AC line cord into the IEC input receptacle on the rear of the unit. Plug
the male end into a properly grounded AC socket.
3. Install the interlock BNC connector. (See Chapter 7 for details on the interlock circuitry.)
4.4.
Making Fiber Connections to the Amplifier
1.
Input Connection:
Connect the input to be amplified to the input fiber receptacle using a FC/APC fiber
patch cable, carefully cleaning both the input FC bulkhead connector and the patch cable connector
beforehand.
2.
Output Connection:
It is highly recommended to minimize the number of times that a cable is connected
to the output receptacle in order to reduce the probability of damage to this connector. Repeated connection
to this port can cause a build-up of contamination on the internal connector surface, which can damage the
connector at high powers. There are two components shipped with every amplifier for this purpose:
a. A one meter FC/APC patch cable is included. The connectors on this cable have been pre-cleaned
and are ready to mate with the output of the amplifier. Please inspect one end of this cable for any
