DC Rectifier Shelf

Electrical Safety

Warning! Do not open the enclosure unless directed to do so by Tellabs technical support. Doing so is dangerous and voids the warranty.

• Check that the DC power supply polarity is correct. The system will not be damaged by reversed polarity but will not operate until the polarity is corrected.
• Do not install electrical equipment in wet or damp conditions.
• Ensure that the power source for the system is adequately rated to assure safe operation and provides current overload protection.
• Do not allow anything to rest on the power cable, and do not place this product where people can stand or walk on the power cable.

Electrostatic Discharge (ESD)

Observe and follow all ESD instructions while handling Tellabs plug-in equipment.

Caution! The Tellabs plug-in equipment uses semiconductor devices that can be damaged by electrostatic discharge (ESD). Do not remove a plug-in from a protective packing box or equipment rack until the time of installation or replacement. To equalize the static charge on the plug-in, establish a body path to the ground using an ESD wrist strap connected to an ESD ground. [If storing or shipping the plug-in becomes necessary, place the plug-in in a conductive shipping box to prevent static buildup.]

Apply the following precautions:

• Use grounded wrist straps, table mats, floor mats
• Handle static-sensitive devices in the nonconductive areas
• Place static-sensitive cards into an antistatic plastic bag    
• Use protective ESD-sensitive packing and shipping bags when returning repairable components

To Avoid Electrical Hazards

Caution:  Performing the following procedure may interrupt power to the loads if battery reserve is not sufficient.

• The tasks should be performed in the order indicated.
• Remove watches, rings, and other jewelry.
• Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage or the expected voltage is present.

Install the Controller 

The DC Rectifier Shelf, shown in Figure below, can support up to three rectifier modules, installed left-to-right. A fourth position, the right-most position, is a DC distribution module containing the circuit breakers and fuses to support connected devices.

Figure 1: Valere Compact DC Rectifier System Shelf

To install the controller module:

1. Connect an approved ESD ground strap to an exposed metal portion of the shelf.
2. Unpack and inspect the controller for any damage. If any damage is noted, notify the next level of support for a replacement controller.
3. Slide the controller partially into the shelf, as shown below.

Figure 2:  Installing the Controller
 

4. Locate the alarm cable and connect it to the alarm (ALM) connector on the controller.

Figure 3:  Controller Connections

5. Slide the controller onto the shelf until it is fully seated in the connector on the rear of the shelf.

   Note: Power is applied to the controller when the first rectifier module is inserted.

6. Tighten the controller mounting screw.
7. Connect the display cable to the connector on the controller (see Figure 3).

   Note 1: Ensure the proper keying relationship between the cable and connector.

   Note 2: Carefully dress the display cable when attaching it to the shelf to ensure the cable does not get pinched when the controller faceplate is installed.

   Note 3: Use care when installing the faceplate to not damage the top tab. Use a screwdriver and apply downward pressure on the tab until it snaps into the shelf.

8. Insert the bottom of the control panel into the slot on the bottom of the shelf and push the display faceplate into the shield until the latch on the top of the shelf latches.

Install the Rectifier Modules  

To avoid electrical hazards:

• The tasks should be performed in the order indicated.
• Remove watches, rings, and other jewelry.
• Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage or the expected voltage is present.

To install rectifier modules:

Note: All rectifier connections are made when the rectifier is seated in the shelf. The rectifiers power up when AC is applied to the shelf.

1. Plug the AC input power cord(s) into the appropriate sized AC outlets.
2. Open the DC Distribution module and set all circuit breakers to ON.
3. Unpack and inspect the rectifier module(s) for any apparent damage. If any damage is noted, notify the next level of support for a replacement rectifier(s).

   Note: The rectifier module latch must be opened whenever installing or removing rectifiers to prevent damage to the shelf and rectifier.

            Figure 4: Releasing the Rectifier Module Latch

5. Insert the modules, one at a time, into the appropriate positions, from left to right.
6. Firmly push the module into the slot until the connector on the rear engages with the connector at the back of the slot on the shelf.

   Note: As each module is installed, the controller automatically identifies the new module and reconfigures the system. After all modules have been installed, and there are no alarms, the controller displays System Ok.

            Figure 5: Installing the Rectifier Module

7. As each rectifier is installed, the rectifier fans start in high-speed mode and reduce speed according to the ambient and plant conditions within 10 seconds. As each rectifier is installed, the controller automatically identifies the new rectifier and reconfigures the system. After all rectifiers have been installed, and if there are no alarms, the controller displays "System Ok."
8. Repeat Step 3 through Step 7 until all modules have been installed.