Install Master Ethernet Switch Unit (ESU32)
This section will detail the installation of the cards onto the shelf.
Laser Safety
| Warning 1! Personnel handling fiber optic cables must be trained for laser safety. |
| Warning 2! Optical Fibers emit invisible laser radiation. Avoid direct exposure to the beam. Never look into the end of a Fiber or into a Fiber connector on a cable or a device. Permanent eye damage or blindness can occur quickly from laser radiation. |
Fiber Optic Cable
Ensure that the fiber connectors are properly cleaned per local standards. Dirty connectors may result in inaccurate measurements.
| Caution 1: Fiber optic cable installation and maintenance should only be performed by trained service personnel. |
| Caution 2: Do not bend the fiber optic cable to a diameter smaller than 7.5cm/3 inches. Doing so may damage the fiber or prevent the signal from passing through properly. |
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 install the master Ethernet Switch Unit (ESU32 or ESU321)
- If not already removed, remove the cover by sliding the two cover latches towards the center and lifting the cover from the shelf.

- Note that blanks should be left in any unused slots to ensure proper airflow and cooling of the unit.
- Remove the blank faceplate from the slot labeled ESU A.
- Unpack and inspect the ESU card for any apparent damage. If there is apparent damage then use the Contact Us section to contact Tellabs support for replacement.
- Carefully insert the card into the card guides until the card contacts the backplane connector. Then apply equal pressure on both upper and lower ejectors to seat the card.

- Upon insertion, the STAT LED illuminates RED while performing internal power-up diagnostics. Upon successful completion of the power-up diagnostics, the STAT LED blinks GREEN for 2.5 minutes at 0.5-second intervals while initializing. LED Illumination is shown below:
LED Factory Card prior to running Turnup Card with Turnup already run STAT Blinking Green GREEN ACT Dark GREEN - Insert the appropriate Small Form-Factor Pluggable (SFP) module(s) or XFP laser modules.
- Install all uplink cabling into the ESU.
- Route the fiber cabling through the cable management clip on the right of the shelf.

- If the system is to be installed as Redundant, then install the secondary ESU in the other slot and ensure that the STAT LED is either solid or blinking green and the Active light is off.
OIU Card Installation
- Remove the blank faceplate from the appropriate I/O slot of the chassis.
- Unpack the OIU card (QOIU7 or OIU8) and inspect for any apparent damage. If there is damage, use the Contact Us link to contact Tellabs about options for replacement.
- Carefully insert the card into the card guides until the card contacts the backplane connector. Then apply equal pressure on both upper and lower ejectors.
- Upon insertion, the STAT LED illuminates RED while the card performs internal power up diagnostics. Upon successful completion of the power up diagnostics, the STAT LED blinks GREEN at 0.5 second interval while initializing. Upon completion of initialization, the STAT LED illuminates solid GREEN.
- Install the optical modules into the OIU card in preparation for fiber installation.
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